An algaecide or algicide is a substance used for killing and preventing the growth of algae . Natural algicides Barley straw , in England , is placed in mesh bags and floated in fish pond s or water garden s to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency EPA for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United States and England Synthetic algicides Synthetic algicides include Copper sulphate , which is very toxic, and Polyquat . External links http npic.orst.edu National Pesticide Information Center NPIC Information about pesticide related topics. Category Algae Category Pesticides chem stub cs Algicid de Algizid et Algitsiid fr Algicide hr Algicidi kk pl Algicydy pt Algicida ... more details
Orphan date February 2009 Polyquat is the common name for a class of swimming pool and hot tub algaecide which is chemically mostly n alkyl dimethyl benzyl ammonium chloride some dialkyl monomethyl isomers are also included , which is also known as benzalkonium chloride . The alkyl groups are usually C14 and C16. The common name derives from the fact that these compounds are POLY alkyl QUATernary amines. R N sup sup CH3 sub 2 sub CH2 C6H5 Cl sup sup R C sub 14 sub H sub 29 sub or C sub 16 sub H sub 33 sub Pre diluted solutions of polyquat of 5 or less are sold for the hot tub market, at large mark up. It may be more economically used as the concentrated product intended for swimming pools, but in amounts scaled for hot tubs 300 gal . n alkyl dimethyl benzyl ammonium chloride is also used in some disinfecting products such as wipes including those made by companies such as Clorox . References http www.aldenleeds.com Polyquat.pdf Category Algae chem stub ... more details
selfref For information about pending changes protection on Wikipedia, see Wikipedia Pending changes . PCP may refer to In medicine and pharmaceutics Phencyclidine , a recreational drug known by a number of street names including PCP, angel dust, embalming fluid, and rocket fuel Primary care physician , a doctor who acts as first point of consultation for patients Paramedics in Canada Primary Care Paramedics Primary care paramedic Pneumocystis pneumonia , a form of pneumonia caused by the yeast like fungus Post coital pill , a form of emergency contraception In politics Paraguayan Communist Party Partido Comunista del Peru, also known as Shining Path Personal Choice Party , Utah Peruvian Communist Party Portuguese Communist Party Proletarian Catalan Party Puerto Rican Communist Party In science Parallel coordinate plot , a method for visualizing multivariate data PCP theorem , a theorem in computational complexity theory Pentachlorophenol , an organochlorine compound used as a timber preservative herbicide, insecticide, fungicide and algaecide phosphorliated cardanol pre polymer Post correspondence problem , an important problem in computability theory Priority ceiling protocol , a computer science concept Probabilistically checkable proof complexity , a notion in the theory of computational complexity Put call parity , in financial mathematics a relationship between the price of a call option and a put option In technology Performance Co Pilot , an open source performance monitoring system Air gun Pre charged pneumatic .28PCP.29 Pre charged pneumatic , a type of air gun IEEE P802.1p Priority levels Priority Code Point , a three bit priority field within an Ethernet frame header when using IEEE 802.1q tagged frames. Miscellaneous Faster P.C.P. , a single by Manic Street Preachers, from their 1994 album The Holy Bible Purple City Productions , a Harlem based rap group Personal contract purchase , a vehicle financing product Principia Cybernetica Project , an organiza ... more details
chembox Watchedfields changed verifiedrevid 434970460 Name Bromine monochloride ImageFile Bromine monochloride 2D.png ImageSize 125px ImageName structural diagram ImageFile1 Bromine monochloride 3D vdW.png ImageSize1 125px ImageName1 space filling molecular model ImageFile2 BrCl.jpg OtherNames bromine I chloride br bromochloride br bromine chloride Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 55600 InChI 1 BrCl c1 2 SMILES BrCl InChIKey CODNYICXDISAEA UHFFFAOYAZ StdInChI Ref stdinchicite correct chemspider StdInChI 1S BrCl c1 2 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey CODNYICXDISAEA UHFFFAOYSA N CASNo Ref cascite correct ?? CASNo 13863 41 7 EINECS 237 601 4 UNNo 2901 Section2 Chembox Properties Formula BrCl MolarMass 115.357 g mol Density 2.172 g cm Solvent other solvents SolubleOther 1.5 g L MeltingPt 54 C BoilingPt 5 C Bromine monochloride , also called bromine I chloride , bromochloride , and bromine chloride , is an interhalogen inorganic compound with chemical formula bromine Br chlorine Cl . It is an unstable brownish yellow gas with boiling point 5 C and melting point 66 C. Its CAS number is 13863 41 7 and its EINECS number is 237 601 4. ref Cite book last Gangolli first S. coauthors Royal Society of Chemistry title The Dictionary of Substances and Their Effects date 1999 isbn 0854048081 page 676 ref It is a strong oxidizing agent. Uses Bromine monochloride is used in analytical chemistry in determining low levels of mercury element mercury , to quantitatively oxidize mercury in the sample to Hg II state. Bromine monochloride is used as a biocide , specifically as an algaecide , fungicide , and disinfectant , in industrial recirculating cooling water systems. Addition of bromine monochloride is used in some types of lithium battery Li SO sub 2 sub batteries to increase voltage and energy density. ref Cite web url http electronic components.globalspec.com specifications electrical electronic co ... more details
chembox ImageFile Monolinuron.svg ImageSize 250px PIN 3 4 chlorophenyl 1 methoxy 1 methylurea SystematicName 1 4 chlorophenyl 3 methoxy 3 methylurea OtherNames N 4 chlorophenyl N methoxy N methylurea Section1 Chembox Identifiers CASNo 1746 81 2 CASNo Ref cascite correct CAS PubChem 15629 PubChem Ref pubchemcite correct ?? ChemSpiderID 14868 ChemSpiderID Ref chemspidercite correct chemspider EINECS 217 129 5 MeSHName Monolinuron RTECS YS6425000 UNII Ref fdacite correct FDA UNII 6KJJ4XAD6M SMILES Clc1ccc NC O N OC C cc1 StdInChI Ref stdinchicite correct chemspider StdInChI 1S C9H11ClN2O2 c1 12 14 2 9 13 11 8 5 3 7 10 4 6 8 h3 6H,1 2H3, H,11,13 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey LKJPSUCKSLORMF UHFFFAOYSA N Beilstein 2212523 KEGG Ref keggcite correct kegg KEGG C18794 Section2 Chembox Properties C 9 H 11 Cl 1 N 2 O 2 MolarMass 214.6 g mol Appearance Density MeltingPt 80 83 C BoilingPt Solubility 0.735 g L Section3 Chembox Hazards MainHazards FlashPt Autoignition verifiedrevid 444017009 Monolinuron is a pesticide , ref name Rossoff cite book author Rossoff Irving S. title Encyclopedia of clinical toxicology year 2002 page 718 ref more specifically a selective systemic herbicide ref name Milne cite book author Milne George W. A. title Gardner s commercially important chemicals year 2005 page 44 ref and a algaecide . ref name HSE cite web url http webcommunities.hse.gov.uk inovem inovem.ti pesticides viewdatastore?spiderFormState S&DSID 2308&ADV S&search 10 Monolinuron title Pesticides HSE registered products accessdate 2009 07 31 ref As a herbicide , it is used to control broad leaved weed s and annual grasses in vegetable crops such as leeks , potatoes ref name Milne and dwarf french beans. ref name ER cite web url http www.pesticides.gov.uk psd pdfs Evaluations 133 monlinuron.pdf title Department for Environment, Food and Rural Affairs, Evaluation of Fully Approved or Provisionally Approved Products, Evaluation on Monolinuron, May 1995 accessdate ... more details
chembox verifiedrevid 399730272 Name Copper II carbonate ImageFile Copper carbonate basic.jpg ImageSize 200px ImageName Copper II carbonate OtherNames copper carbonate, cupric carbonate, basic copper carbonate Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 13799 InChI 1 CH2O3.Cu c2 1 3 4 h H2,2,3,4 q 2 p 2 InChIKey GEZOTWYUIKXWOA NUQVWONBAA SMILES Cu 2 . O C O O StdInChI Ref stdinchicite correct chemspider StdInChI 1S CH2O3.Cu c2 1 3 4 h H2,2,3,4 q 2 p 2 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey GEZOTWYUIKXWOA UHFFFAOYSA L CASNo 1184 64 1 PubChem 14452 RTECS FF950000 Section2 Chembox Properties Formula CuCO sub 3 sub MolarMass 123.555 g mol Appearance green powder Density 3.9 g cm sup 3 sup Solubility insoluble SolubleOther soluble in ethanoic acid MeltingPt 200 C BoilingPt decomposes at 290 C pKsp 9.85 Section4 Chembox Thermochemistry DeltaHf 595 kJ mol sup 1 sup Entropy 88 J mol sup 1 sup K sup 1 sup Section7 Chembox Hazards ExternalMSDS http physchem.ox.ac.uk MSDS CO copper II carbonate.html Oxford MSDS LD50 159 mg kg rat, oral Copper II carbonate often called copper carbonate or cupric carbonate is a blue green Chemical compound compound chemical formula CuCO sub 3 sub forming part of the verdigris patina that is found on weathered brass , bronze , and copper . The colour can vary from bright blue to green, because there may be a mixture of both copper carbonate and basic copper carbonate in various stages of Hydration reaction hydration . It was formerly much used as a pigment , and is still in use for artist s colours. It has also been used in some types of make up, like lipstick , although it can also be toxic to humans. It also has been used for many years as an effective algaecide in farm ponds and in aquaculture operations. Copper carbonate was the first compound to be broken down into several, separate elements copper, carbon, and oxygen . It was broken down in 1794 by the ... more details
Encyclopedia
top
