Diphenylchlorarsine
[4][5] The German process, used in the first war, applied at Hochstam-Main, used the Sandmeyer reaction between phenyldiazonium chloride and sodium arsenite.The salt was condensed again by the Sandmeyer reaction and reduced again, the final product was then acidified, resulting in DA.[8] Diphenylchlorarsine was sometimes believed to penetrate the gas masks of the time and to cause violent sneezing, forcing removal of the protecting device.The Germans called it Maskenbrecher (mask breaker), together with other substances with similar effects, such as Adamsite, diphenylarsincyanide, and diphenylaminarsincyanide.[9] DA (military code and acronym for diphenylchloroarsine) is a precursor to DC (diphenylcyanoarsine), generated by the reaction of an aqueous solution of sodium cyanide and DA (DC process, NaCN method), with cyanide being used in excess of 5%, for military purposes.
Preferred IUPAC nameCAS NumberChemSpiderECHA InfoCardPubChemCompTox DashboardSMILESChemical formulaMolar massDensityMelting pointBoiling pointMagnetic susceptibilitystandard stateorganoarsenic compoundchemical warfareAs(III)phenylchlorideWorld War IAugust Michaelissulfur dioxideEdgewood Arsenalchlorobenzenearsenic trichloridesodiumSandmeyer reactionphenyldiazonium chloridesodium arsenitereducedreagentGrignard reagentsdiphenylcyanoarsinediphenylaminechlorarsinesneezingcoughingheadachesalivationvomitingBlue Cross (chemical warfare)incapacitationriot controlBlood agentsCyanogenCyanogen bromideCyanogen chlorideHydrogen cyanideArsineCacodyl cyanideCacodyl oxideHydrogen sulfidePhosphineCarbon monoxidePhosphorus trifluorideMethyl cyanoformateIron pentacarbonylNickel tetracarbonyl2,3,7,8-TetrachlorodibenzodioxinGlycolonitrileLactonitrileAcetone cyanohydrinStibineChloral cyanohydrinBlister agentsArsenicalsEthyldichloroarsineMethyldichloroarsinePhenyldichloroarsineLewisiteLewisite 2Lewisite 3Sulfur mustardsLevinstein mustardNitrogen mustardsTL-301Nettle agentsPhosgene oximeDibutylchloromethyltin chlorideSelenium oxychlorideNerve agentsSarin (GB)ChlorosarinThiosarinChlorosomanEthylsarinCyclosarinFluorotabunEA-1356EA-4352CrotylsarinEA-2192EA-3148EA-1763Chinese VXV-sub x (GD-7)GV (EA-5365)Novichok agentsC01-A035C01-A039C01-A042CarbamatesDimethylcarbamoyl fluorideEA-3887EA-3887AEA-3966EA-3990EA-4056T-1123T-1152T-1194Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium bromide)TL-599TL-1238TL-1299TL-1317Miotine (AR-28/T-1843)3152 CT4-686-293-01 (Agent 1-10)Diisopropyl fluorophosphateDicyclohexyl phosphorofluoridateEA-2012EA-2054EA-2098EA-26132-Ethoxycarbonyl-1-methylvinyl cyclohexyl methylphosphonateNeopentylene fluorophosphate