Alkali Lake is an unincorporated community in the Cariboo region of the British Columbia Interior ... Ranch . The settlement, and the adjoining reserves of the Alkali Lake Indian Band , get their name from Alkali Lake British Columbia Alkali Lake , which gets its name from an outcrop of alkali on the hillside above it the lake itself is not an alkali lake . ref cite bcgnis 27787 Alkali Lake community ... north. Alkali Lake Indian Reserve No. 1 , one of the main reserves of the Alkali Lake Indian Band , is located ... Alkali Lake, British Columbia is mentioned in the X Men movies, in which its location is given as being ... more details
www.fhwa.dot.gov pavement pccp pubs 06069 ref For less common types of alkali driven degradation of concrete see Alkali aggregate reaction disambiguation page . The alkali silica reaction ASR is a reaction ... Understanding Cement url http www.understanding cement.com alkali silica.html title Alkali ..., converting it to viscous alkali silicate gel. Consumption of alkali by the reaction induces ... siliceous minerals into bulky alkali silicate gel. The resultant expansive pressure is stored ... model of alkali silica reaction. Cement and Concrete Research, 37, 1291 1297 ref Mitigation ASR can be mitigated in concrete by three complementary approaches Limit the alkali metal content of the cement ... siliceous limestones submitted to alkali silica reaction journal Cement and Concrete Research volume ... on alkali silica reaction in concrete journal Cement and Concrete Research volume 30 issue 3 pages 339 ... in fine particles convert to alkali silicate and then to calcium silicate without formation of semipermeable ... by Grattan Bellew et al. 2003 as a universal accelerated test for alkali aggregate reaction. ref ... title Proposed universal accelerated test for alkali aggregate reaction the concrete microbar test journal Cement Concrete and Aggregates volume 25 issue 2 pages 29 34 ref See also Alkali aggregate reaction Alkali carbonate reaction Calcium silicate hydrate Carbonatation Pozzolanic reaction References ... Silicates de Alkali Kiesels ure Reaktion fr R action alcali granulat it Reazione alcali aggregati ... more details
Alkali metal halides also known as alkali halides are the family of inorganic compound s with the chemical formula MX, where M is an alkali metal and X is a halogen . These compounds are the often commercially significant sources of these metals and halides. The best known of these compounds is sodium chloride , table salt . ref Greenwood, N. N. & Earnshaw, A. 1997 . Chemistry of the Elements 2nd Edn. , Oxford Butterworth Heinemann. ISBN 0 7506 3365 4. ref File Halit Kristalle.jpg 180px right thumb Halite is the mineral form of sodium chloride. Structure Most alkali metal halides crystallize with the face centered cubic lattices. In this structure both the metals and halides feature octahedral coordination geometry . Cesium chloride, bromide, and iodide crystallize in a centered cubic motif that accommodates higher coordination number for the metal cation. ref Wells, A.F. 1984 Structural Inorganic Chemistry, Oxford Clarendon Press. ISBN 0 19 855370 6. ref File NaCl polyhedra.png 180px left thumb Ball and stick model of the coordination of Na and Cl in NaCl. Most alkali metal halides adopt this structure. File CsCl polyhedra.png 180px left thumb Ball and stick model of the coordination of Cs and Cl in CsCl Properties The alkali metal halides exist as colourless crystalline solids, although as finely ground powders appear white. They melt at high temperature, usually several hundred degrees to colorless liquids. Their high melting point reflects their high lattice energy lattice energies . At still higher temperatures, these liquids evaporate to give gases composed of diatomic molecules. These compounds dissolve in polar solvents to give ionic solutions that contain highly solvated anions and cations. The table below provides links to each of the individual articles for these compounds ... world center class wikitable style text align center colspan 2 rowspan 2 colspan 6 Alkali ... RbI 1.7 Caesium iodide CsI 1.8 center References references Category Alkali metals Category Halides ... more details
Infobox lake lake name Alkali Lake image lake caption lake image bathymetry caption bathymetry location Lake County, Oregon coords coord 42 58 38 N 120 01 41 W type waterbody region US OR display inline,title type seasonal, alkali lake alkali inflow outflow catchment basin countries United States length width area depth max depth volume residence time shore elevation 4332 islands cities Alkali Lake is a Sink geography playa in Lake County, Oregon , United States . It is in the Alkali Subbasin of the Summer Lake Oregon Summer Lake Basin drainage basin watershed in southeastern Oregon, ref name US Fish & Wildlife Service website US Fish & Wildlife Service website ref located 26 miles east of Christmas Valley, Oregon , northeast of Lake Abert ref name McArthur, p. 10 McArthur, p. 10 ref , to the immediate west of Abert Rim and Highway 395 . Alkali Lake is thought to have reached a prehistoric maximum depth of 270.7 feet 82.5 meters and covered about 1448.4 square miles 2,331 square kilometers . Since then, its water level has varied, with a drying trend. ref name US Fish & Wildlife Service website Notable features include dissolved alkaline salts averaging 10 of total brine weight ref name McArthur, p. 10 in its seasonal waters and a nearby chemical disaster, Alkali Lake Chemical Waste Dump . Plants Plants known to occur in the dunes immediately north of the lake include ref name Halley http science.halleyhosting.com nature bloomtime centralo 03 30.htm ref Buckwheat Family Eriogonum vimineum Broom Buckwheat Goosefoot Family Grayia spinosa Spiny Hopsage Mustard Family Stanleya plant Stanleya or Guillenia sp. Evening primrose family Oenothera caespitosa Desert Evening primrose Parsley Family Rhysopterus Rhysopterus plurijugus Polemoniaceae Phlox Family Gilia micromeria Great Basin Gilia Borage Family Cryptantha circumscissa Matted Cryptantha Asteraceae Sunflower Family Chaenactis ... Daisy See also Alkali Lake State Airport References reflist Works cited McArthur, Lewis A. Oregon ... more details
National Assembly Persondata Metadata see Wikipedia Persondata . NAME Alkali, Sa idu Ahmed ALTERNATIVE ... State , Nigeria DATE OF DEATH PLACE OF DEATH DEFAULTSORT Alkali, Saidu Ahmed Category Living people ... politician stub yo Sa idu Ahmed Alkali ... more details
An alkali anion exchange membrane AAEM is a semipermeable membrane generally made from ionomer s and designed to conduct anions while being impermeable to gases such as oxygen or hydrogen . This is their essential function when incorporated into a membrane electrode assembly MEA of a DMFC ref http epubs.surrey.ac.uk cgi viewcontent.cgi?article 1061&context chemistry Comparison of PVDF and FEP based radiation grafted alkaline anionexchange membranes for use in low temperature portable DMFCs ref or DEFC ref http ecsmeet5.peerx press.org ms files ecsmeet5 2007 12 13 00000569 00 569 0 art 0 jt0484.pdf Direct ethanol fuel cells using alkaline anion exchange membrane dl date February 2012 ref separation of reactants and transport of anions. Advantage The advantage of the alkali anion exchange membrane in the fuel cell is the potential to use non noble metals such as iron , cobalt or nickel ref http www.reuters.com article environmentNews idUSL1461117220070914 Platinum free fuel cell developed in Japan ref due to the low overpotential s associated with electrochemical reactions at high pH ref http ecsmeet7.peerx press.org ms files ecsmeet7 2008 12 11 00000661 00 661 0 art 0 kbqbhk.pdf Poly phenylene based anion exchange membranes for alkaline fuel cells dl date February 2012 ref ref http www.electrochem.org meetings scheduler abstracts 214 0783.pdf Anion Exchange Membrane and Ionomer for Alkaline Membrane Fuel Cells dl date February 2012 ref . In comparison against Alkaline fuel cell , alkali anion exchange membrane fuel cells also protect the electrode from solid carbonate precipitation, which can cause fuel oxygen hydrogen transport problem during start up. See also Alkaline fuel cell Artificial membrane Gas diffusion electrode Ion exchange Glossary of fuel cell terms Proton exchange membrane Alkaline Anion Exchange Membrane Fuel Cells References reflist DEFAULTSORT Alkali Anion Exchange Membrane Category Fuel cells Category Electrochemistry Category Polymers Category Hydrogen ... more details
Infobox Disease Name milk alkali syndrome Image Caption DiseasesDB 8215 ICD10 ICD9 ICD9 275.42 ICDO OMIM MedlinePlus 000332 eMedicineSubj med eMedicineTopic 1477 MeshID In medicine , milk alkali syndrome , also called Burnett s syndrome in honor of Charles Hoyt Burnett , the American physician who first described it, ref WhoNamedIt synd 4029 ref ref cite journal author Burnett CH, Commons RR, Albright F, Howard JE title Hypercalcemia without hypercalcuria or hypophosphatemia, calcinosis and renal insufficiency a syndrome following prolonged intake of milk and alkali journal N. Engl. J. Med. volume 240 issue 20 pages 787 94 year 1949 pmid 18126919 doi 10.1056 NEJM194905192402001 url ref is characterized by hypercalcemia caused by repeated ingestion of calcium and absorbable alkali such as calcium carbonate , or milk and sodium bicarbonate . If untreated, milk alkali syndrome may lead to metastatic calcification and renal failure . It was most common in the early 20th century, but there has been a recent increase in the number of cases reported. ref name pmid17483976 cite journal author Caruso JB, Patel RM, Julka K, Parish DC title Health behavior induced disease return of the milk alkali syndrome journal J Gen Intern Med volume 22 issue 7 pages 1053 5 year 2007 month July pmid 17483976 doi 10.1007 s11606 007 0226 0 pmc 2219730 ref ref name pmid16702792 cite journal author Beall DP, Henslee HB, Webb HR, Scofield RH title Milk alkali syndrome a historical review and description of the modern version of the syndrome journal Am. J. Med. Sci. volume 331 issue 5 pages 233 42 year 2006 month May pmid 16702792 doi 10.1097 00000441 200605000 00001 url http meta.wkhealth.com pt pt core template journal lwwgateway media landingpage.htm?an 00000441 200605000 00001 ref Pathophysiology The name milk alkali syndrome derives from when patients would take in excessive amounts of milk and antacids ... a short QT interval. References reflist Clinical External links eMedicine.com Milk Alkali Syndrome ... more details
Infobox Station type Sacramento Regional Transit District Light rail Sacramento RT light rail station name Alkali Flat La Valentina image image caption address 12th Street at D Street BR Sacramento, CA coordinates coord 38 35 8 N 121 29 17 W type railwaystation region US CA display inline,title line Sacramento Regional Transit District Sacramento RT rail color box system SRTD line Blue other Bus Route 33 platform 1 island platform structure at grade parking bicycle passengers pass year pass percent opened Start date 1987 03 12 ref name March 13, 1987 cite news first Bill last Walker work The Sacramento Bee page A1 title Pride runneth over in city On the move date March 13, 1987 accessdate February 5, 2010 ref rebuilt ADA Yes owned Sacramento RT zone services s rail title SRTD s line system SRTD line Blue previous Globe next 12th & I Alkali Flat La Valentina is an island platform ed Sacramento Regional Transit District Light rail Sacramento RT light rail station in Sacramento, California Sacramento , California , United States . The station was opened on March 12, 1987, and is operated by the Sacramento Regional Transit District as part of the Blue Line Sacramento RT Blue Line . It is located on 12th street near D street in the Alkali Flat neighborhood, just west of Downtown Sacramento Downtown . References reflist Sacramento RT Category Sacramento Regional Transit District Category Railway stations opened in 1987 tram stub ... more details
Infobox Officeholder honorific prefix name Alkali Abdulkadir Jajere honorific suffix image imagesize smallimage caption order office1 term start1 term end1 predecessor1 successor1 constituency1 office2 Senator for Yobe South term start2 June 2011 term end2 predecessor2 Adamu Garba Talba successor2 constituency2 majority birth date bda 1964 10 15 df y birth place death date death place nationality party All Nigeria People s Party ANPP spouse relations children residence alma mater occupation profession religion signature website footnotes Alkali Abdulkadir Jajere b. 15 October 1964 is a Nigerian people Nigerian journalist turned politician who was elected to the Senate for the Yobe South constituency of Yobe State , Nigeria in the April 2011 national elections. He was elected on the All Nigeria People s Party ANPP platform. Jajere entered politics in 2007. He was appointed Commissioner of Agriculture and then Commissioner of Works in the government in Yobe State. ref name Dtrust20110407 While he was commissioner of Agriculture, farms were established across the state, boosting food production and creating jobs. 12,000 farmers were employed in production of castor seeds for export under the state castor oil production programme. 700 tractors were successfully procured and allocated to farmers. ref cite web url http allafrica.com stories 201009270997.html title ANPP And Yobe 2011 Senatorial Polls work Leadership author Saleh Ibrahim Tikau date 25 September 2010 accessdate 2011 05 04 ref In June 2008 he was engaged in a war of words with the Federal government over delivery and payment for grains allocated to the state. Jajere accused the Federal government of using late delivery ... Persondata . NAME Jajere, Alkali Abdulkadir ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 15 October 1964 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Jajere, Alkali Abdulkadir ... yo Alkali Abdulkadir Jajere ... more details
Alkali Lake Chemical Waste Dump is a hazardous waste disposal site near the southwest edge of Alkali Lake Oregon Alkali Lake , a seasonally dry Dry lake playa in Lake County, Oregon . It is in the Summer Lake Oregon Summer Lake watershed. ref cite web url http deq12.deq.state.or.us fp20 FPDetail.aspx?SiteID 6013 title Oregon DEQ Facility Profiler 2.0 Site 6013 date 1999 03 31 work Oregon Department of Environmental Quality accessdate 16 March 2010 ref The site has been the focus of Oregon Department of Environmental Quality DEQ efforts to remediate a complex mix of toxic chemicals. Problems were initially caused by the dumping of hazardous waste near the lakebed between 1969 and 1971. Description Beginning in February 1969, ref name DEQPCJ2009 Proposed Consent Judgment for Portion of Cleanup Costs at Alkali Lake Facility http www.deq.state.or.us Webdocs Controls Output PdfHandler.ashx?p ab7ef6d9 06be 4a5b b080 97bc64bff35b.pdf ref Chemical Waste Storage and Disposition, a Beaverton, Oregon Beaverton company, stored roughly 25,000 55 gallon drum s of chemical waste near the shore of the playa with a permit from the Oregon Department of Agriculture . ref name headache ref name factsheet The drums contained 2,4 D , Dioxins and dioxin like compounds dioxins , phenyl s, components of Agent Orange herbicide, titanium tetrachloride , and other highly corrosive, acidic chemical wastes. ref ... for Alkali Lake herbicide dump raise concerns last Learn first Scott date September 2, 2009 work ... Human Health and Ecological Risk Assessment Alkali Lake Chemical Waste Disposal Site Lake County, Oregon ... title Fact Sheet Alkali Lake Chemical Waste Disposal Site last Schwarz first Bob date ... acre and contains 50 monitoring wells. ref name headache cite news title Toxic wastes at Alkali Lake ... not cover the Alkali Lake site, which comes from the regular budget for DEQ. ref cite news title LEGISLATURE ... ref References Reflist 2 External links http www.deq.state.or.us lq cu er AlkaliLake Alkali ... more details
The alkali metal thermal to electric converter AMTEC , originally called the sodium heat engine SHE was invented by Joseph T. Kummer and Neill Weber at Ford in 1966, and is described in US Patents 3,404,036 3,458,356 3,535,163 and 4,049,877 it is a Heat engine thermally regenerative electrochemical device for the direct conversion of heat to electricity electrical energy . 1,2 It is characterized by high potential efficiencies and no moving parts except the working fluid, which make it a candidate for space power applications. 2 This device accepts a heat input in a range from about 900 kelvin K 1300 K and produces direct current with predicted device efficiencies of 15 40 . In the AMTEC sodium is driven around a closed thermodynamic cycle between a high temperature heat reservoir and a cooler reservoir at the heat rejection temperature. The unique feature of the AMTEC cycle is that sodium ion conduction between a high pressure or activity region and a low pressure or activity rgion on either side of a highly ionically conducting refractory solid electrolyte, is thermodynamically nearly equivalent to an isothermal Thermal expansion expansion of sodium vapor between the same high and low pressure. Electrochmical oxidation of neutral sodium at the anode leads to sodium ions which traverse th solid electrolyte and electron s which travel from the anode through an external circuit where they perform electrical work, to the low pessure cathode, where they recombine with the ions to prodce low pressure sodium gas. The sodium gas generated at the cathode then travels to a condnser at the heat rejection temperature of perhaps 400 700 K where liquid sodium reforms. The AMTEC thus is an electrochemical concentration cell which converts the work generated by expansion of sodium vapour ... of the High Temperature Conductivity of Sodium and Potassium Beta Alumina in Alkali Metal Vapor ... for the Exchange Current at the Porous Electrode Beta Alumina Alkali Metal Gas Three Phase Zone ... more details
The Red Gulch Alkali National Back Country Byway is a 32 mile byway to the west of the Big Horn Mountains in Wyoming in the United States . The byway runs from U.S. Route 14 west of Shell, Wyoming Shell to Wyoming Highway 31 north of Hyattville, Wyoming Hyattville . Red Gulch Road and Alkali Road meet at coord 44.412 N 107.557 W type byway . It can be driven from May through to October though light rain can make travelling conditions unsafe and in dry conditions there can be considerable dust. ref http www.blm.gov wy st en field offices Worland rec redgulch.html Bureau of Land Management Backcountry Byway ref Attractions include the Red Gulch Dinosaur Tracksite and the Medicine Lodge State Archeological Site . ref http byways.org explore byways 11243 America s Byways ref References references Uncategorized date April 2012 Wyoming geo stub ... more details
Unreferenced date March 2007 The Esketemc are a First Nations people in the Cariboo Regional District of the Canadian province of British Columbia. They are a subgroup of the Secwepemc people and reside around the community of Alkali Lake, British Columbia Alkali Lake possibly Esket is the placename, but it means People of the White Earth , an unincorporated settlement and Indian Reserve community on the Cariboo Plateau south of the city of Williams Lake, British Columbia Williams Lake . Their band government is called the Alkali Lake Indian Band . Category Secwepemc BritishColumbia stub FirstNations stub hr Esketemc ... more details
Unreferenced auto yes date December 2009 Orphan date November 2006 Vacuum fusion is an analytical chemistry technique, used for determining the oxygen, hydrogen, and sometimes nitrogen content of metals. While ineffective when used on alkali metals alkali or earth metals , vacuum fusion remains a viable means when applied to almost all other metals. Category Analytical chemistry DEFAULTSORT Vacuum Fusion Chem stub ... more details
saved book title Alkaline earth metals subtitle An overview cover image Strontium destilled crystals.jpg cover color Alkali metals An overview Properties Alkaline earth metal Elements Beryllium Magnesium Calcium Strontium Barium Radium Unbinilium Category Wikipedia books on chemistry Category Wikipedia books on chemical elements Category Alkali metals Wikipedia books on elements ... more details
italic title Alkali grass redirects here. This is also improperly used for the Mountain Deathcamas Anticlea elegans which is not a grass. taxobox name Alkali grass image Puccinellia distans.jpeg image width image caption br br Puccinellia distans br Weeping alkali grass br regnum Plantae ... are known as alkali grass . These grasses grow in wet environments, often in Saline water saline or alkali ... species font size 2 Puccinellia agrostidea font font size 1 Sorensen font font size 2 Bent alkali grass or Tundra alkali grass font br font size 2 Puccinellia ambigua font font size 1 Sorensen font font size 2 Alberta alkali grass font br font size 2 Puccinellia americana font font size 1 Sorensen font font size 2 American alkali grass font br font size 2 Puccinellia andersonii font font size 1 Swallen font font size 2 Anderson s alkali grass font br font size 2 Puccinellia angustata font font size 1 R.Br. Rand & Redf. font font size 2 Narrow alkali grass font br font size 2 Puccinellia arctica font font size 1 Hook. Fern. & Weath. font font size 2 Arctic alkali grass font br font size 2 Puccinellia bruggemannii font font size 1 Sorensen font font size 2 Prince Patrick alkali grass ... size 2 Puccinellia deschampsioides font font size 1 Sorensen font font size 2 Polar alkali grass font br font size 2 Puccinellia distans font font size 1 Jacq. Parl. font font size 2 Spreading alkali grass, Weeping alkali grass or Reflexed saltmarsh grass font br font size 2 Puccinellia fasciculata font font size 1 Torr. E.P.Bicknell font font size 2 Torrey alkali grass or Borrer s saltmarsh grass ... size 2 Puccinellia groenlandica font font size 1 Sorensen font font size 2 Greenland alkali grass font br font size 2 Puccinellia howellii font font size 1 J.I.Davis font font size 2 Howell s alkali grass font br font size 2 Puccinellia hultenii font font size 1 Swallen font font size 2 Hulten s alkali ... alkali grass font br font size 2 Puccinellia kamtschatica font font size 1 Holmb. font font size ... more details
White liquor is a strongly alkaline solution used in the first stage of the Kraft process in which lignin and hemicellulose are separated from the cellulose fiber in Kraft process for the production of Pulp paper pulp ref name pulping cite book last Gullichsen first Johan authorlink coauthors Carl Johan Fogelholm title Papermaking science and Technology 6A. Chemical Pulping publisher Tappi Press year 2000 location Finland pages 41 42 url doi id isbn 952 5216 06 3 ref . It is called white liquor due to the white opaque colour. Composition White liquor consists mainly of sodium hydroxide and sodium sulfide in water and is the active component in Kraft pulping ref name pulping ref . White liquor also contains minor amounts of sodium carbonate , sodium sulfate , sodium thiosulfate , sodium chloride , calcium carbonate and other accumulated salts and non process elements. These additional components are considered inert in the Kraft process, except sodium carbonate that contributes to a lesser extent. The chemical composition and properties of the white liquor are calculated as total alkali , active alkali , effective alkali , sulfidity , causticity and reduction . class wikitable Total alkali All Na sup sup compounds Active alkali AA NaOH Na sub 2 sub S g NaOH equivalents, or on dry wood Effective alkali EA NaOH Na sub 2 sub S g NaOH equivalents, or on dry wood Sulfidity Na sub 2 sub S AA Causticity NaOH NaOH Na sub 2 sub CO sub 3 sub Reduction Na sub 2 sub S Na sub 2 sub S Na sub 2 sub SO sub 4 sub Application Main Kraft process The Kraft cooking liquor is a mixture of white liquor, water from the wood chips , condensed steam and black liquor . See also Pulp & Paper chemicals References reflist Category Papermaking pt Licor branco ... more details
Orphan date November 2006 SiGNa chemistry is a type of chemistry in which alkali metal s are molecular encapsulation encapsulated into porous oxides of silica gel in order to reduce their pyrophoric and highly combustible properties while preserving the desirable reduction reactivity of the metals Dye, et al. . One can deconstruct the term SiGNa to derive Si symbol for silicon , G gel , and Na symbol for sodium , a popular alkali metal . SiGNa chemistry was pioneered by Michael Lefenfeld, a PhD student at Columbia University with the help of Dr. James Dye of Michigan State University . References Dye, James L., Kevin D. Cram, Stephanie A. Urbin, Mikhail Y. Redko, James E. Jackson, and Michael Lefenfeld. Alkali Metals Plus Silica Gel Powerful Reducing Agents and Convenient Hydrogen Sources. Journal of the American Chemical Society . July 2005 127 26 9338 9339. External links http www.signachem.com SiGNa Chemistry Company Category Reducing agents chemistry stub ... more details
Unreferenced February 2010 date February 2010 Image Reunion 2004 1.jpg thumb 200px Piton de la Fournaise erupting OIB in 2004 Ocean island basalts or OIB s are basalt basaltic rocks found on many volcanic island s away from tectonic plate tectonic plate boundaries typically associated with hotspot geology hot spot s. Islands hosting ocean island basalts lie always above oceanic crust and are not limited to volcanic islands but occur also on volcanoes of any size under the sea. The chemical compostition of these basalts can vary from tholeiite to alkali basalt within the same island group, but is never calc alkaline . During the shield volcano shield volcano stage of many hotspot islands, tholeiitic OIBs build up most of the volcano s structure. Following the post erosional stage this is usually accompanied by violent eruptions of alkali basalt and other more evolved volcanic rocks with high alkali content. basalt Category Plate tectonics Category Basalt Category Hotspots petrology stub ... more details
Orphan date November 2006 Pericline also refers to a doubly plunging anticline or syncline . Pericline is a form of albite exhibiting elongate prismatic crystal. Pericline twinning is a type of crystal twinning which show fine parallel twin laminae typically found in the alkali feldspars sanidine , microcline and albite. The twinning results from a structural transformation between high temperature and low temperature forms. References Hurlbut, Cornelius S. Klein, Cornelis, 1985, Manual of Mineralogy , p. 100, 20th ed., ISBN 0 471 80580 7 Tsatskis, I. and E.K.H. Salje 1996 Time evolution of pericline twin domains in alkali feldspars , American Mineralogist, Volume 81, pages 800 810 http www.minsocam.org MSA AmMin TOC Articles Free 1996 Tsatskis p800 810 96.pdf PDF http www.mindat.org min 4518.html Mindat with location data Category Tectosilicates silicate mineral stub ... more details
Trachybasalt is a volcanic rock with a composition between trachyte and basalt . Minerals included in trachybasalt include alkali feldspar , calcic plagioclase , olivine , clinopyroxene and likely very small amounts of leucite or analcime . ref http www.webref.org geology t trachybasalt.htm Trachybasalt ref It contains high alkali content 5 to 7 Na sub 2 sub O K sub 2 sub O, see TAS classification TAS diagram . References reflist basalt Category Basalt Category Volcanic rocks Volcanology stub es Traquibasalto pl Trachybazalt pt Traquibasalto ... more details
Kieselkalk is also known as the Helvetic Siliceous Limestone . It has sedimented during the Lower Cretaceous epoch. It can contain up to 40 of very fine 1 10 m , evenly distributed authigenic quartz crystals. Early diagenesis diagenetic dissolution of opal sponge spicule s led to silica enrichment of interstitial waters, which reprecipitated silica in the overlying horizons, forming tiny quartz crystals in pore spaces. ref Cite journal last Funk first Hanspeter year 1975 title The origin of authigenic quartz in the Helvetic Siliceous Limestone Helvetischer Kieselkalk , Switzerland journal Sedimentology volume 22 issue 2 pages 299 306 doi 10.1111 j.1365 3091.1975.tb00296.x accessdate 2009 03 17 ref Because of its high silica content, the Kieselkalk is much less susceptible to karst ification than the overlying Schrattenkalk . In the Siebenhengste Hohgant H hle cave system in Switzerland , large galleries, easily developing in the Schrattenkalk, become impenetrable fissures networks when water disappears in the Kieselkalk. Susceptibility to alkali silica reaction Siliceous limestones can be very prone to the Alkali Silica Reaction ASR ref Cite journal last Monnin first Y. coauthors D grugilliers P., Bulteel D., Garcia Diaz E. year 2006 title Petrography study of two siliceous limestones submitted to alkali silica reaction journal Cement and Concrete Research volume 36 issue 8 pages 1460 1466 issn 0008 8846 doi 10.1016 j.cemconres.2006.03.025 url http www.sciencedirect.com science article B6TWG 4K07FY8 1 2 b246b621db441152ceb1e5b62a2e07ad accessdate 2009 03 17 ref and their use as construction aggregate aggregate is often the cause of premature concrete degradation and problems in civil engineering concrete spalling , bridges failure, ... . See also Alkali Silica Reaction Alkali aggregate reaction Limestone Silica Siebenhengste Hohgant H hle References references Category Cave geology Category Concrete Category Limestone petrology stub ... more details
The Wohl Aue reaction is an organic reaction between an aromatic nitro compound and an aniline to form a phenazine in presence of an alkali alkali base . ref cite journal author Alfred Wohl and W. Aue title ber die Einwirkung von Nitrobenzol auf Anilin bei Gegenwart von Alkali journal Chemische Berichte volume 34 pages 2442 2450 year 1901 doi 10.1002 cber.190103402183 issue 2 ref ref cite journal title The Wohl Aue Reaction. I. Structure of Benzo a phenazine Oxides and Syntheses of 1,6 Dimethoxyphenazine and 1,6 Dichlorophenazine author Irwin J. Pachter and Milton C. Kloetzel journal J. Am. Chem. Soc. year 1951 volume 73 issue 10 pages 4958 4961 doi 10.1021 ja01154a144 ref An example is the reaction between nitrobenzene and aniline Image Wohl AueReaction.png center 500px The Wohl Aue reaction The reaction is named after Alfred Wohl and W. Aue. References references DEFAULTSORT Wohl Aue Reaction Category Heterocycle forming reactions Category Organic redox reactions Category Name reactions de Wohl Aue Reaktion ja pt Rea o de Wohl Aue sl Wohl Auejeva reakcija zh Wohl Aue es Reacci n de Wohl Aue ... more details
italic title taxobox name Frankenia salina image Frankenia salina.jpg regnum Plant ae unranked divisio Angiosperms unranked classis Eudicots unranked ordo Core eudicots ordo Caryophyllales familia Frankeniaceae genus Frankenia species F. salina binomial Frankenia salina binomial authority Molina I.M. Johnst. The perennial herb Frankenia salina , often called alkali heath or alkali seaheath , is native to California . It is occasionally found in Nevada and Mexico, but its range is limited. It is uncommon even in the region where it is most likely to be found, just north of the San Francisco Bay Area . It is a squat flowering bush that forms a twiggy thicket near beaches and California coastal salt marsh coastal salt marshes . Its common name refers to its preference for Alkali alkaline soils , a halophyte . It has the ability to excrete salt as an adaptation for living in saline habitats. The flowers are pink or fuchsia in color. External links http www.calflora.org cgi bin species query.cgi?where taxon Frankenia 20salina&ttime 1164851277 Calflora.org info page http ucjeps.berkeley.edu cgi bin get JM treatment.pl?Frankenia salina Jepson Manual Treatment http www.nativeplantnetwork.org network view.asp?protocol id 608 California Native Plants Propagation Info Caryophyllales stub Category Frankenia salina Category Halophytes Category Flora of California Category Salt marsh plants tr T lpembe ... more details
The nitrogen phosphorus detector NPD or thermionic specific detector TSD is a type of detector commonly used with gas chromatography , in which thermal energy is used to ionize an analyte . It is a type of flame thermionic detector FTD , the other being the alkali flame ionization detector AFID . With this Methodology method , nitrogen and phosphorus can be selectively detected with a sensitivity that is 10 sup 4 sup times greater than that for carbon . NP Mode A concentration of hydrogen gas is used such that it is just below the minimum required for ignition. A rubidium or cesium bead, which is mounted over the nozzle , ignites the hydrogen by acting catalytically , and forms a cold plasma . Excited state Excitation of the alkali metal results in ejection of electrons, which in turn are detected as a current flow between an anode and cathode in the chamber. As nitrogen or phosphorus analytes exit the column, they cause a reduction in the work function of the metal bead, resulting in an increase in current. Since the alkali metal bead is consumed over time, it must be replaced regularly . External links http books.google.se books?id KhkASTftwkUC&pg PA8&lpg PA8&dq 22flame thermionic detector 22&source bl&ots ZclFOIfjbB&sig GYQjQE w91Ib35S8t40vEWx7dT4&hl sv&sa X&ei mEcqT4bkCozc4QTH aCFDg&ved 0CDwQ6AEwAQ v onepage&q 22flame 20thermionic 20detector 22&f false Environmental Analysis on Google books http www.chromatography online.org GC Detectors Nitrogen Phosphorus NPD rs39.html Chromatography Online Category Gas chromatography science stub de Stickstoff Phosphor Detektor it Rivelatore termoionico pl Detektor azotowo fosforowy ... more details
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