unreferenced date June 2008 Siderophilic bacteria are bacteria that require or are facilitated by free iron . They may include Vibrio vulnificus , Listeria monocytogenes , Yersinia enterocolica , Salmonella enterica serotype Typhymurium , Klebsiella pneumoniae and Escherichia coli . One possible symptom of haemochromatosis is susceptibility to infections from these species. Certain non bacterial microorganisms such as Rhizopus arrhizus and Mucor may also be siderophilic. See also Iron bacteria Iron in microbiology Category Bacteria Category Microbiology bacteria stub fi Siderofiilit ... more details
Unreferenced stub auto yes date December 2009 Symbiotic bacteria are bacteria living in symbiosis with another organism or each other. For example, Zoamastogopera , found in the stomach of termites, enable them to digest cellulose . Some types of cyanobacteria are endosymbiont to types of lichens and sponges. Symbiotic bacteria are able to live in or on plant or animal tissue biology tissue . In digestive systems, symbiotic bacteria help break down foods that contain fibre . They also help produce vitamins . br Symbiotic bacteria can live near hydrothermal vents. They usually have a mutual relationship with other bacteria. Some live in giant tube worm tube worm s. A use for symbiotic bacteria has recently been in paratransgenesis for controlling important vectors for disease, such as the transmission of Chagas disease by Triatoma Triatome kissing bug s. Symbiotic bacteria in legume roots provide the plants with ammonia in exchange for the plants carbon and a protected home. br DEFAULTSORT Symbiotic Bacteria Category Symbiosis Category Bacteriology Category Microbiology Bacteria stub Ecology stub fr Bact rie symbiotique ... more details
Conceptdab Sulfur oxide refers to many types of sulfur and oxygen containing compounds such as SO, SO sub 2 sub , SO sub 3 sub , S sub 7 sub O sub 2 sub , S sub 6 sub O sub 2 sub , S sub 2 sub O sub 2 sub , etc. Sulfur oxide SO sub x sub refers to one or more of the following Lower sulfur oxides S sub n sub O, S sub 7 sub O sub 2 sub and S sub 6 sub O sub 2 sub Sulfur monoxide SO Sulfur dioxide SO sub 2 sub Sulfur trioxide SO sub 3 sub Higher sulfur oxides SO sub 3 x sub where 0 x 1 disambig Category Sulfur oxides ar es xido de azufre pl Tlenki siarki simple Sulfur oxide ... more details
Thermoduric bacteria are bacteria which can survive, to varying extents, the pasteurisation process. ref name indo cite news url http www.independent.ie farming dairy the heatresisting bacteria 1388056.html title The heat resisting bacteria last Donworth first John date 2008 05 27 work Irish Independent publisher Independent News and Media accessdate 2009 08 11 ref Species of bacteria which are thermoduric include Bacillus , Clostridium and Enterococci . ref name glan cite web url https agrilink.ie MilkNews2007 4241 20Thermoduric 20Bacteria.pdf last Murphy first Pat title Control of Thermoduric Bacteria in Raw Milk Supplies publisher Glanbia accessdate 2009 08 11 ref References Reflist bacteria stub Category Food science ... more details
Unreferenced date November 2009 Liver of Sulfur is a poorly defined mixture of potassium sulfide , potassium polysulfide , thiosulfate potassium thiosulfate , and probably potassium hydrosulfide potassium bisulfide . Synonyms include hepar sulfuris , liver of sulfur , sulfurated potash and sulfurated potassa . Liver of sulfur is mainly used in metalworking to form a patina , turning copper alloys brown or black. Typically liver of sulfur comes in a dry rock form which must be broken into smaller pieces and dissolved in hot water for use. Lump form The drawbacks to liver of sulfur in dry form are the following Shelf Life Lump form liver of sulfur has a very short shelf life. Flammability Lump form liver of sulfur is considered a flammable solid. Inhalation hazard Lump form liver of sulfur can cause an inhalation hazard due to the dust created by handling it or breaking the larger chunks into smaller pieces. Gel form Liver of sulfur is also available in a gel form. The primary benefit of the gel form being the reduced potential for harm as an inhalant. Medical use Liver of sulfur was once used in pharmaceutical preparations such as white lotion. At one time sulfurated potash was used to combat arthritis . It eventually fell into disfavor for medical purposes because sulfides and polysulfides are toxic. References reflist External links http xlgel.net Welcome.html Liver of Sulphur Extended Life Gel Website Potassium compounds DEFAULTSORT Liver Of Sulfur Category Potassium compounds Category Sulfides Category Inorganic compounds de Schwefelleber ... more details
Image SulfurSprings.jpg thumb right 300px Active sulfur vents in Sulfur Springs. br Sulfur Springs is a popular tourist attraction found in Soufri re , Saint Lucia . In fact, the town of Soufri re got its name from the sulfur mining in the 19th century. Sulfur Springs was a formerly active dome volcano that had its last major eruption 40,000 years ago. Its last minor eruption occurred in 1780. The volcano s dome collapsed many years ago to form a convert 7 acre m2 sing on caldera . Although there has not been an eruption for over 200 years, sulfur still billows from the cracks in the caldera. Also, there are active boiling mud pits around the area. Sulfur Springs is currently the world s only drive in volcano. ref http www.planetware.com soufriere sulphur springs park drive in volcano stl stl ssp.htm Sulphur Springs Park Drive in Volcano, Soufriere Bot generated title ref References Reflist External links http www.youtube.com watch?v mJxEWlk IfY A video clip of Sulfur Springs http www.planetware.com soufriere sulphur springs park drive in volcano stl stl ssp.htm Information on Sulfur Springs http www.360travelguide.com 360VirtualTour.asp?iCode stl27 Panoramic virtual tour of Sulfur Springs coord missing Saint Lucia Category Visitor attractions in Saint Lucia ... more details
Lipophilic bacteria fat liking bacteria are bacteria that may proliferate in lipids . Types They include lipophilic corynebacteria . ref name cmr http cmr.asm.org cgi reprint 10 1 125.pdf Clinical Microbiology of Coryneform Bacteria GUIDO FUNKE,1 ALEXANDER VON GRAEVENITZ,1 JILL E. CLARRIDGE III,2 AND KATHRYN A. BERNARD3 Department of Medical Microbiology, University of Zu rich, Zu rich, Switzerland1 Laboratory Service, Veterans Affairs Medical Center, Departments of Pathology, Microbiology, and Immunology, Baylor College of Medicine, Houston, Texas2 and Special Bacteriology Laboratory, Laboratory Centre for Disease Control, Ottawa, Ontario, Canada3 ref Propionibacterium acnes is a type of liphophilic bacteria, ref http www.muzisyenlerkulubu.com acnetreatments.asp Natural Acne Treatments Guide How to get rid of pimples ref releasing fatty acids and worsening comedone s. However, the group of lipophilic bacteria are not pathogenic, i.e. they don t cause food poisoning or food infection ref name jensen http www.springerlink.com content 2203u0385q2n1v5r fulltext.pdf The Action of Microorganisms on Fats By L. B. JENSEN and D. P. GRETTIE Swift & Company Laboratories, Chicago, Ill. Published 1933, so feel free to replace ref Health risks Most materials in laboratories and health care centers have small amounts of lipids on their surface, and thus may support the proliferation of lipophilic bacteria. ref http linkinghub.elsevier.com retrieve pii S0886335004006741 Postoperative endophthalmitis. Journal of Cataract & Refractive Surgery, Volume 30, Issue 11, Pages 2441 2444 C. Ferrer, J ... jensen this is not a serious threat. Lipophilic bacteria may also proliferate in diet fat. However ... ref name jensen Commercial Use Many lipophilic bacteria are a good source of Biosurfactants, hence are used commercially, e.g. Bacillus lichenoformis . These kind of bacteria produce Biosurfactant ... ones. References reflist 2 Extremophile Category Bacteria medicine stub id Bakteri lipofilik uk ... more details
Psychrotrophic bacteria are bacteria that are capable of surviving or even thriving in a cold environment. They can be found in soils ref cite web url http www3.interscience.wiley.com journal 120081154 abstract?CRETRY 1&SRETRY 0 title An Ecological Study of the Psychrotrophic Bacteria of Soil, Water, Grass and Hay Druce 2008 Journal of Applied Microbiology Wiley Online Library publisher .interscience.wiley.com date accessdate 2010 09 01 ref , in surface and deep sea waters ref cite web url http www.springerlink.com content 0kcy3gl47cftrj0w title Marine Biotechnology, Volume 3, Number 5 publisher SpringerLink date accessdate 2010 09 01 ref , in Antarctic ecosystems ref cite web url http es.scribd.com doc 33323896 Psychrotrophic Bacteria title Psychrotrophic bacteria isolated from Antarctic ecosystems . A. Correa Guimaraes, J. Mart n Gil, M. C. Ramos S nchez, L. Vallejo P rez. Department of Forestry, Agricultural and Environmental Engineering, ETSIA, Avenida de Madrid, 57, Palencia, Spain ref , and in foods ref cite web url http www.encyclopedia.com doc 1G1 14605181.html title Psychrotrophic Bacteria in Foods Disease and Spoilage. Food Trade Review publisher Encyclopedia.com date 1993 09 01 accessdate 2010 09 01 ref . Psychrotrophic bacteria are of particular concern to the dairy industry ref cite web url http www.leonthemilkman.com 2006 03 18 the case of psychrotrophic bacteria title Leon the Milkman s Blog The case of Psychrotrophic bacteria publisher Leonthemilkman.com date 2006 ... to The Food Science Department at Cornell university Cornell University , psychrotrophs are bacteria ... of pyschrotrophic bacteria becomes negligible or virtually stops ref http 74.125.93.132 search?q cache ... bacteria 22&cd 2&hl en&ct clnk&gl us&client safari Steven C. Murphy, Shelf LIfe of Fluid ... November 2009. ref . Psychrotrophic bacteria also fall under the more general category of psychrophiles . Notes reflist Category Bacteriabacteria stub de Psychrotroph fr Psychrotrophe ... more details
wiktionary sulfur sulphur Sulfur is a chemical element. Sulfur or sulphur may also refer to Biology Coliadinae , a subfamily of butterflies commonly known as the Sulfurs or Yellows Dercas , a genus of Coliadinae commonly called the Sulfurs Colias , a genus of Coliadinae commonly called the Sulfurs in North America or Clouded Yellows elsewhere Phoebis , a genus of Coliadinae that is not itself called the Sulfurs but that contains a number of species which are Geography Sulphur, Indiana Sulphur, Louisiana Sulphur Mountain disambiguation , various mountains Sulphur, Nevada , a ghost town and railroad siding at the Kamma Mountains in the Black Rock Desert Sulphur, Oklahoma The Sulphur River in Texas and Arkansas Sulphur Spring , a geyser in Yellowstone National Park Sulphur Springs disambiguation Sulphur Creek disambiguation , multiple Other The sulfur cycle Sulfur magazine Sulfur magazine , a defunct literary magazine Fedora operating system Fedora 9 Fedora 9 , codenamed Sulphur Sulfur , a Song from by Katatonia on the Teargas Katatonia EP Teargas EP Sulfur song Sulfur song , a single by American heavy metal band Slipknot See also Sulpher, a musical group composed of Rob Holliday and Steve Monti Sulpher, a character in the video game Mana Khemia disambiguation ca Sulphur de Sulphur it Sulphur nl Sulphur ja pl Sulphur pt Sulphur sv Sulphur vo Sulphur ... more details
There are a large number of allotropy allotropes of sulfur . In this respect, sulfur is second only to allotropes ... form found in nature is yellow orthorhombic sulfur, which contains puckered rings of chem S 8 . ref name Greenwood Chemistry students may have seen plastic sulfur this is not an allotrope but a mixture of long chain polymeric sulfur forms, two of which have been identified as allotropes. ref name Greenwood In addition to these there are other solid forms that contain sulfur rings of 6, 7, 9 ... forms, two of which are metallic. ref name Steudel cite book title Elemental sulfur and sulfur rich ... possessed by sulfur can in part be ascribed to the wide range of bond lengths 180 260 pm and bond ... name Steudel Some forms have been named for their appearance, e.g. mother of pearl sulfur , or alternatively named for a chemist who was pre eminent in identifying them, e.g. Muthmann s sulfur I or Engel s sulfur . ref name NASA cite web title A primer on sulfur for the planetary geologist author ... prepared from elemental sulfur. ref name NASA List of allotropes and forms Allotropes are in bold ... isolated, only detected in sulfur vapour. ref name Steudel cyclo S sub 6 sub sulfur cyclo hexasulfur, sulfur , M.R.Engel Engel s sulfur, A.H.W.Aten Aten s sulfur The ring adopts a chair form ... 8 sub sulfur orthorhombic sulfur rhombic sulfur , flowers of sulfur , roll sulfur milk of sulfur , F.W. Muthmann Muthmann s sulfur I Yellow solid consisting of S sub 8 sub puckered rings. The thermodynamically stable form at ordinary temperatures. ref name Greenwood cyclo S sub 8 sub sulfur monoclinic sulfur prismatic sulfur F.W. Muthmann Muthmann s sulfur II Yellow crystalline solid, consisting of S sub 8 sub puckered rings. Only stable above 95.6 C, it reverts to sulfur at room temperature. ref name Greenwood cyclo S sub 8 sub sulfur nacreous sulfur mother of pearl sulfur Gernez s sulfur or F.W. Muthmann Muthmann s sulfur III . Light yellow solid, crystal monoclinic, consisting of S sub ... more details
enzyme Name Sulfur reductase EC number 1.97.1.3 CAS number 101637 43 8 IUBMB EC number 1 97 1 3 GO code image width caption In enzymology , a sulfur reductase EC number 1.97.1.3 is an enzyme that catalysis catalyzes the chemical reaction of reduction of elemental sulfur or polysulfide to hydrogen sulfide. This enzyme belongs to the family of oxidoreductase s. The systematic name of this enzyme class is donor sulfur oxidoreductase . References reflist 1 cite journal author Zophel A, Kennedy MC, Beinert H and Kroneck PMH date 1988 title Investigations on microbial sulfur respiration .1. Activation and reduction of elemental sulfur in several strains of Eubacteria journal Arch. Microbiol. volume 150 pages 72&ndash 77 1.97 enzyme stub Category EC 1.97.1 Category Enzymes of unknown structure it Zolfo reduttasi ja ... more details
Prosthecate bacteria are a non phylogenetically related group of Gram negative bacteria that possess appendages , termed prosthecae . These cellular appendages are neither Pilus pili nor flagella , as they are extensions of the cellular membrane and contain cytosol . ref name Brock cite book author Madigan, Michael T., Martinko, John M. title Brock Biology of Microorganisms edition 11th ed. publisher Pearson Prentice Hall year 2006 id ISBN 0 13 196893 9 ref One notable group of prosthecates is the genus Caulobacter . Metabolism Prosthecates are generally chemoorganotroph ic aerobe s that can grow in nutrient poor habitats, being able to survive at nutrient levels on the order of parts per million for which reason they are often found in aquatic habitats. These bacteria will attach to surfaces with their prosthecae, allowing a greater surface area with which to take up nutrients and release waste products . ref name Brock cite book author Madigan, Michael T., Martinko, John M. title Brock Biology of Microorganisms edition 11th ed. publisher Pearson Prentice Hall year 2006 id ISBN 0 13 196893 9 ref Some prosthecates will grow in nutrient poor soils as aerobic heterotrophs . See also Caulobacter br Oligotroph ic br Flagella br Pilus br External links Poindexter, Jeanne S. Dimorphic Prosthecate Bacteria The Genera Caulobacter , Asticcacaulis , Hyphomicrobium , Pedomicrobium , Hyphomonas and Thiodendron . http www.springerlink.com content r73l62t7uhl27485 fulltext.pdf References reflist bacteria stub Category Microbiology ... more details
Unreferenced date April 2008 Denitrifying bacteria form a necessary part of the process known as denitrification as part of the nitrogen cycle , their primary purpose being to metabolism metabolise nitrogenous Chemical compound compounds , with the assistance of the nitrate reductase enzyme , to turn oxide s back to nitrogen gas or nitrous oxides for energy generation. This process takes place only in the absence of oxygen , as most denitrifying bacteria are facultative aerobe s prefers to use oxygen as their terminal electron acceptors , however, they could also utilize nitrate instead. Therefore, denitrification can only be performed under wikt anaerobic anaerobic conditions. This is the main reason why denitrification mostly occurs in the deep substrata of the soil , or in areas of stagnant water . The process of denitrification lowers the fertility of the soil and thus is less common in areas where the land is rather well Tillage cultivated . But this loss of nitrogen to the atmosphere can eventually be regained via introduced food and water, as part of the nitrogen cycle. Some nitrogen may also be nitrogen fixation fixated by species of nitrifying bacteria and the cyanobacteria . Denitrification also becomes the key pathway for Microbial metabolism Denitrification nitrate as electron acceptor dissimilative nitrate reduction , which is the process in which nitrates are reduced ... to that of nitrifying bacteria 2 NO sub 3 sub sup sup 10 e sup sup 12 H sup sup N sub 2 sub 6 H sub ... of water. Denitrifying bacteria themselves include several species of pseudomonas , alkaligene ... by that which is released into the soil by nitrifying bacteria , forming a relatively balanced cycle. Denitrifying bacteria A group of bacteria that reduce nitrates or nitrites to nitrogen containing ... cycle back into the atmosphere . These bacteria have also been implicated in depletion of soil fertility ... it can give. See also Nitrifying bacteria Nitrogen cycle Category Bacteria Category Nitrogen ... more details
Luminescent bacteria emit light as the result of a chemical reaction during which chemical energy is converted to light energy. Luminescent bacteria exist as symbiotic organisms carried within a larger organism, such as many deep sea organisms, including the Lantern Fish , the Angler fish , certain jellyfish , certain clam s and the Gulper eel . The light is generated by an enzyme catalyzed chemoluminescence reaction, wherein the pigment luciferin is oxidisation oxidised by the enzyme luciferase . The expression of gene s related to bioluminescence is controlled by an operon called the lux operon . Some species of luminescent bacteria possess quorum sensing, the ability to determine local population by the concentration of chemical messengers. Species which have quorum sensing can turn on and off certain chemical pathways, commonly luminescence in this way, once population levels reach a certain point the bacteria switch off light production ref http www.ncbi.nlm.nih.gov pubmed 10398554 Autoinduction of light emission in different species of bioluminescent bacteria . Luminescence 1999, 14 1 3 9. ref Characteristics of the phenomenon Bioluminescence is a form of luminescence , or cold light light emission emission less than 20 of the light generates thermal radiation . It should not be confused with fluorescence , phosphorescence or refraction of light. Most forms of bioluminescence are lighter or only exist at night, following a circadian rhythm . See also Dinoflagellate s Vibrionaceae e.g. Vibrio fischeri , Vibrio harveyi , Photobacterium phosphoreum Vibrio phosphoreum References reflist 2 External links http www.rhizobium.net environmental microbiology sites.htm h8 Bioluminescence Lecture Notes http lifesci.ucsb.edu biolum Bioluminescence Webpage http www.disknet.com indiana ... Luminescent Bacteria http siobiolum.ucsd.edu Biolum intro.html Scripps Institution of Oceanography Bioluminescence Category Bacteria Category Bioluminescent organisms ja ... more details
Chembox ImageFile Sulfur tetrachloride.svg ImageSize 200px IUPACName Sulfur IV chloride OtherNames Section1 Chembox Identifiers CASNo 13451 08 6 PubChem ChemSpiderID SMILES ClS Cl Cl Cl InChI 1 Cl4S c1 5 2,3 4 Section2 Chembox Properties Formula SCl sub 4 sub MolarMass 173.87 Appearance White powder Density MeltingPt 31 C BoilingPt 20 C decomposes Solubility soluble in water Section3 Chembox Hazards RPhrases R14 , R34 , R50 SPhrases S1 2 , S26 , S45 , S61 MainHazards FlashPt Autoignition Sulfur tetrachloride is an inorganic compound with chemical formula SCl sub 4 sub . It is an unstable pale yellow solid, decomposing to sulfur dichloride and chlorine at temperatures above 242K. It is obtained by treating sulfur dichloride s with chlorine at 193K math rm SCl 2 Cl 2 xrightarrow 193K SCl 4 math Its structure is uncertain. It is probably the salt SCl sub 3 sub sup sup Cl sup sup , since related salts are known. ref Greenwood&Earnshaw2nd ref References reflist Inorganic compound stub Category Sulfur compounds Category Chlorides Category Sulfur chlorides de Schwefeltetrachlorid fa ro Tetraclorur de sulf ru zh ... more details
Exogenous bacteria are microorganisms introduced to closed biological systems from the external world ... Hill, 2011. 673 737. Print. ref Exogenous bacteria can be either benign or pathogenic. Pathogenic exogenous bacteria can enter a closed biological system and cause disease such as Cholera, which is induced .... ref Exogenous bacteria can be introduced into a closed ecosystem as well, and have mutualistic benefits ... of this concept is bacterial flora, which consists of exogenous bacteria ingested and endogenously ... 2011 04 21 science 21gut.html? r 1 . ref Bacteria that are part of normal internal ecosystems, also known as bacterial flora , are called Endogenous Bacteria . A significant amount of prominent diseases are induced by exogenous bacteria such as gonorrhea , meningitis , tetanus , and syphilis. ref Exogenous Bacteria. Bacteria Microbes. N.p., n.d. Web. 29 Apr 2012. http bacteria.health tips diseases.com 2009 02 exogenous bacteria and disease.html . ref Pathogenic exogenous bacteria can .... ref Exogenous vs. Endogenous Bacteria A small fragment of bacteria causes disease in humans,and many ... flora is endogenous bacteria, which is defined as bacteria that naturally reside in a closed system. ref Bacteria. ENotes. ENotes.com Inc., 2012. Web. 29 Apr 2012. http www.enotes.com bacteria reference bacteria 171754 . ref Disease can occur when microbes included in normal bacteria flora enter a sterile area of the body such as the brain or muscle. ref Bacteria. ENotes. ENotes.com Inc., 2012. Web. 29 Apr 2012. http www.enotes.com bacteria reference bacteria 171754 . ref This is considered a endogenous ... enters the urinary tract. ref Bacteria. ENotes. ENotes.com Inc., 2012. Web. 29 Apr 2012. http www.enotes.com bacteria reference bacteria 171754 . ref This causes a urinary tract infection. Infections caused by exogenous bacteria occurs when microbes that are noncommensal enter a host. ref Bacteria. ENotes. ENotes.com Inc., 2012. Web. 29 Apr 2012. http www.enotes.com bacteria reference bacteria ... more details
Refimprove date September 2007 Image Iron bacteria in runoff.JPG thumb right 250px Iron bacteria in surface water In the management of water supply water supply water well well s, iron bacteria are bacteria ... laundry. Iron bacteria are a natural part of the environment in most parts of the world. These microorganisms ..., the bacteria produce a brown slime that builds up on well screens, pipes, and plumbing fixtures. Bacteria known to feed on iron are Thiobacillus ferrooxidans and Leptospirillum ferrooxidans . Habitat Iron bacteria colonize the transition zone where de oxygenated water from an wikt anaerobic ... water reaches a source of oxygen, iron bacteria use that oxygen to convert the soluble ferrous iron ... cause of an iron bacteria population. Groundwater may be naturally de oxygenated by decaying ... 2 p.544 ref Other conditions associated with iron bacteria result from the anaerobic aqueous environment rather than the iron bacteria visibly colonizing that habitat. Corrosion of pipes is another ... that iron bacteria may be present in well water Iron bacteria often produce unpleasant tastes and odors ... or odor may be more noticeable after the water has not been used for some time. Iron bacteria will usually ... a rainbow colored, oil like sheen on the water. Iron bacteria produce a sticky slime which is typically ..., particularly in standing water such as a toilet tank. Image Iron bacteria burn.JPG right thumb A burn in Scotland with Iron bacteria. The dramatic effects of iron bacteria are seen in surface waters ... serious problems occur when bacteria build up in well systems. Iron bacteria in wells do not cause health problems, but they can reduce well yields by clogging screens and pipes. Prevention Iron bacteria ... of iron bacteria once a well is heavily infested can be extremely difficult. Normal treatment techniques may be only partly effective. Good housekeeping practices can prevent iron bacteria from entering a well ref name umn http www.seagrant.umn.edu groundwater pdfs MDH IBinWW.pdf Iron Bacteria in Well ... more details
Chembox ImageFileL1 Sulfur difluoride 2D dimensions.png ImageSizeL1 125px ImageFileR1 Sulfur difluoride 3D balls.png ImageSizeR1 125px ImageFile2 Sulfur difluoride 3D vdW.png ImageSize2 125px IUPACName sulfoxylic difluoride OtherNames Section1 Chembox Identifiers CASNo 13814 25 0 PubChem 139605 ChemSpiderID 123122 SMILES FSF InChI InChI 1S F2S c1 3 2 Section2 Chembox Properties Formula SF sub 2 sub MolarMass 70.062 g mol Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Sulfur difluoride is an inorganic compound with the chemical formula SF sub 2 sub . It can be generated by the reaction of sulfur dichloride and potassium fluoride or mercury II fluoride at low pressures SCl sub 2 sub 2 KF SF sub 2 sub 2 KCl SCl sub 2 sub HgF sub 2 sub SF sub 2 sub HgCl sub 2 sub The F S F bond angle is 98 , and the length of S F bond is 159 pm. The compound is highly unstable with respect to S sub 2 sub F sub 4 sub . ref Greenwood, N. N. & Earnshaw, A. 1997 . Chemistry of the Elements 2nd Edn. , Oxford Butterworth Heinemann. ISBN 0 7506 3365 4. ref References reflist Inorganic compound stub Category Sulfur compounds Category Fluorides cs Fluorid sirnat fa zh ... more details
merge Wabbit date June 2009 merge Fork Bomb date February 2010 Bacteria also known as rabbit programs are a type of malware that create many instances of themselves, or run many times simultaneously, in order to consume large amounts of Resource computer science system resources . This creates a denial of service effect as legitimate Computer program programs may no longer be able to run, or at least may not run properly. Unlike worms, bacteria do not necessarily spread over the network. References http www.ce.chalmers.se edu course EDA262 oh06 ohF03 malware intro.pdf Introduction to malware http www.unix.org.ua orelly networking puis ch11 01.htm Protecting against programmed threats See also Computer worm Fork Bomb malware stub Category Malware it Rabbit pl Kr lik informatyka ... more details
Nitrifying bacteria are chemotroph chemoautotrophic or chemolithotrophs depending on the genera Nitrosomonas , Nitrosococcus , Nitrobacter , Nitrococcus bacteria that grow by consuming inorganic nitrogen compounds. ref name pmid11539154 cite journal author Mancinelli RL title The nature of nitrogen an overview journal Life support & biosphere science international journal of earth space volume 3 issue 1 2 pages 17 24 year 1996 pmid 11539154 ref Many species of nitrifying bacteria have complex internal membrane systems that are the location for key enzymes in nitrification ammonia monooxygenase which oxidizes ammonia to hydroxylamine , and nitrite oxidoreductase , which oxidizes nitrite to nitrate. Ecology Nitrifying bacteria are widespread in soil and water, and are found in highest numbers where considerable amounts of ammonia are present areas with extensive protein decomposition, and sewage treatment plants . ref name pmid386925 cite journal author Belser LW title Population ecology of nitrifying bacteria journal Annu. Rev. Microbiol. volume 33 issue pages 309 333 year 1979 pmid 386925 doi 10.1146 annurev.mi.33.100179.001521 ref Nitrifying bacteria thrive in lakes and streams with high inputs of sewage and wastewater because of the high ammonia content. Oxidation of ammonia to nitrate Nitrification in nature is the result of actions of two groups of organisms, the nitrosifyers ammonia oxidizing bacteria and nitrifying bacteria nitrite oxidizing, nitrate producing bacteria ref ... 1 2 pages 25 9 year 1996 pmid 11539155 doi ref Nitrosifying bacteria br NH sub 3 sub O sub 2 sub 2H ... sup 1.2 br NH sub 3 sub O sub 2 sub no2 3H sup sup 2e sup &minus sup 1 Nitrifying bacteria br no2 h2o no3 2H sup sup 2e sup &minus sup 2 border 1 align center style text align center Nitrifying bacteria ... 54 Soil border 1 align center style text align center Nitrifying bacteria that oxidize nitrite class ... 50 Marine, Soil See also Root nodule Denitrification Denitrifying bacteria f ratio Nitrification ... more details
Chembox new Watchedfields changed verifiedrevid 408467094 Name Sulfur dichloride ImageFile Sulfur dichloride 2D dimensions.png ImageSize 160px ImageName Structure and dimensions of the sulfur dichloride molecule ImageFileL1 Sulfur dichloride 3D balls.png ImageSizeL1 120px ImageNameL1 Ball and stick model of sulfur dichloride ImageFileR1 Sulfur dichloride 3D vdW.png ImageSizeR1 110px ImageNameR1 Space filling model of sulfur dichloride IUPACName Sulpur dichloride br Sulfur II chloride br Dichlorosulfane OtherNames Sulpur chloride Section1 Chembox Identifiers SMILES ClSCl CASNo 10545 99 0 CASNo Ref cascite correct CAS RTECS WS4500000 EINECS 234 129 0 UNNumber 1828 Section2 Chembox Properties Formula SCl sub 2 sub MolarMass 102.97 g mol sup 1 sup Appearance red liquid with pungent odour Density 1.621 g cm sup 3 sup , liquid Solubility hydrolysis MeltingPt 121.0 C, 152.2 K, 185.8 F BoilingPtC ... chloride br Sulfuryl chloride OtherCpds Sulfur difluoride br Sulfur tetrafluoride br Sulfur hexafluoride br Disulfur dibromide Sulfur dichloride is the chemical compound with the chemical formula formula SCl sub 2 sub . This cherry red liquid is the simplest sulfur chloride and one of the most common ... Inorganic Chemistry Vol. 2, ed. A.F. Trotman Dickenson. 1973. ref Chlorination of sulfur SCl sub 2 sub is produced by the chlorination of either elemental sulfur or disulfur dichloride . ref F ... PCl sub 3 sub to form an azeotrope of 99 purity, however sulfur dichloride loses chlorine slowly ... ref and ethylene to give sulfur mustard S CH sub 2 sub CH sub 2 sub Cl sub 2 sub . ref R. J ... 95512 4. ref SCl sub 2 sub is also a precursor to several inorganic sulfur compounds. Treatment with fluoride salts gives Sulfur tetrafluoride SF sub 4 sub . Reaction with ammonia affords sulfur nitrides ... Category Sulfur chlorides ca Diclorur de sofre cs Chlorid sirnat de Schwefeldichlorid es Cloruro ... ja pl Dichlorek siarki ru simple Sulfur dichloride sl Projekt veplovi kloridi ... more details
Sulfur nitride can refer to a number of sulfur nitrogen compounds tetrasulfur tetranitride , S sub 4 sub N sub 4 sub disulfur dinitride , S sub 2 sub N sub 2 sub polythiazyl , SN sub x sub Additionally, some unstable species are known mononitrogen monosulfide , SN, analogous to nitric oxide , NO SN sub 2 sub , analogous to nitrogen dioxide , NO sub 2 sub . ref name Wiberg&Holleman Egon Wiberg, Arnold Frederick Holleman 2001 Inorganic Chemistry , Elsevier ISBN 0 12 352651 5 ref References reflist disambig simple Sulfur nitride ... more details
Sulfur concrete is a composite material composite construction material, composed of sulfur, construction aggregate aggregate generally a coarse aggregate made of gravel or crushed rocks and a fine aggregate such as sand . Cement commonly Portland cement and water properties water important compounds in normal concrete are not part of sulfur concrete. The concrete is heated above the melting point of sulfur ca. 140 C. After cooling the concrete reaches a high strength, not needing a prolonged curing like normal concrete. Sulfur concrete is resistant to some compounds like acids which attack normal concrete. Sulfur concrete was developed and promoted as building material to get rid of large amounts of stored sulfur produced by hydrodesulfurization of gas and oil. Sulfur concrete is also a possible building material for a lunar base. Up to 2011 Sulfur concrete is only used in small quantities when fast curing or acid resistance is necesarry. ref cite book url http books.google.com books?id DlQe8WAA8AEC&pg PA52 page 52 title Cement based composites Materials, mechanical properties and performance isbn 9780419191100 author1 Brandt first1 Andrzej Marek year 1995 ref ref cite book url http www.pci.org pdf publications journal 1974 January February JL 74 JANUARY FEBRUARY 7.pdf page 86 95 title Sulfur Concrete A New Construction Material journal Prestressed Concrete Institute year 1974 ref References reflist Further reading cite conference title Production of Lunar Concrete Using Molten Sulfur author Husam A. Omar and Mohsen Issa pages 952&ndash 959 booktitle Engineering, construction ... title Feasibility and Applications of Sulfur Concrete for Lunar Base Development A Preliminary Study ... title Viability of Sulfur Concrete on the Moon Environmental Consideration booktitle Proceedings 43rd ... also cite journal author R. Grugel, and Houssam Toutanji year 2006 title Viability of Sulfur Concrete ... doi 10.1016 j.asr.2007.08.018 title Sulfur concrete for lunar applications &mdash Sublimation ... more details
Unreferenced date December 2009 Infobox Album See Wikipedia WikiProject Albums Name Cleanse the Bacteria Type Compilation Artist Various artists Cover Cleanse the bacteria2.jpg Released 1985 Recorded Early 1980s Genre Hardcore punk Length Label Pusmort Records Pusmort Producer Pushead Reviews Last album This album Next album Cleanse the Bacteria is a hardcore punk compilation Vinyl record LP released in 1985 by Pushead on Pusmort Records . It is an international compilation of early hardcore music, and represents grindcore pioneers Siege band Siege s only original official release. A bonus 12 inch came with the mail order version on orange colored vinyl. Track listing Side one 7 Seconds band 7 Seconds Regress No Way , We re Gonna Fight Civil Dissident 20th Century Holocaust Pt. II, Death for a Buzz Instigators 53rd State , The Blood is on Your Hands, Free You re Not Siege band Siege Sad But True , Cold War , Walls Corrosion of Conformity Kiss of Death Crude SS Nazi Go Home , Spr ng Alla Kommunhus Akutt Innleggelse Tenk N The Execute Slash Live Side two Part 1 Black Mass Poison Idea Typical , Die on Your Knees Genocide Express Genocide Express , Factory Inferno band Wir Sind Schon Tot , Freitod Mob 47 Fred & R ttvisa , Sjuk V rld , Nedrusta Nu , Snuten Styr Septic Death Terrorain , Change Enola Gay band Enola Gay Grav Et hul , Enola Gay Holy Dolls Beast of the Apocalypse Zyklome A People Die , Angry Face Extrem Nazi Raus Bonus 12 inch Side one Corrosion of Conformity Prayer Mob 47 Religion r Hj rntv tt Civil Dissident That What This Is Genocide Express Emotions Side two Instigators Wrong Word Part 1 Possessed Poison Idea I Gotta Right DEFAULTSORT Cleanse The Bacteria Category 1985 compilation albums Category Hardcore punk compilation albums 1980s punk album stub es Cleanse the Bacteria ... more details
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