Arsenic chlorides

Nitrophenylarsonic acid has been prepared by heating p-nitrobenzenediazonium chloride with arsenious acid in hydrochloric acid, by the action of -nitrobenzenediazonium chloride on sodium arsenite, by the action of sodium arsenite on sodium -nitrobenzeneisodiazo oxide, by the diazotization of -nitro-aniline in acetic acid in the presence of arsenic chloride and cuprous chloride, and by the reaction of -nitrobenzenediazonium borofluoride with sodium arsenite in the presence of cuprous chloride. ... 

Chemical Designations - Synonyms Arsenic (iii) Trichloride Arsenic Chloride Arsenous Chloride Butter of Arsenic Caustic Arsenic Chloride Caustic Oil of Arsenic Fuming Liquid Arsenic Chemical Formula AsClj. 

Aresenwasserstoff Argentinean Hemorrhagic Fever Arsenic Butter Arsenic Chloride Arsenic Dichloroethane Arsenic Hydride Arsenic Oxide Arsenic Sodium Oxide Arsenic Trichloride Arsenic Trihydride Arsenic Trioxide Arsenic(3+) Chloride... 

Arsenous Acid Anhydride Arsenous Chloride Arsenous Hydride Arsenous Oxide Anhydride Arsenous Trichloride Arsenous Trioxide Arsenowodor Arsenwasserstoff... 

Arsenic trichloride (AsCy, also known as arsenic chloride, is used in the pharmaceutical industry and to make insecticides and ceramics. 

When heated in air at 800°C AS4S4 vapors begin to dissociate to AS2S2 which then ignites to form arsenic oxides. Ignition in chlorine produces arsenic chloride. Reaction with fluorine forms arsenic trifluoride. It is stable in water and also in the air at ambient temperatures. It does not react with hot concentrated HCl but is decomposed by nitric acid. It forms thioarsenite ion, AsS3 and elemental arsenic when warmed with caustic soda solution. Similar reaction occurs with sodium sulfide. 

Formula AsCls MW 181.28 pyramidal structure dipole moment in molecule in the gas phase 1.59 p/D Synonym arsenic (III) chloride arsenic chloride... 

Caustic Arsenic Chloride Caustic Oil of Arsenic Caustic Potash Caustic Potash Solution Caustic Soda Caustic Soda Solution CD-68 Cellosolve Cellosolve Acetate... 

The fluoride is a colourless gas which fumes in moist air and has a pungent, unpleasant odour, recalling that of carbonyl chloride. It condenses at —30° C. to a liquid which on further cooling gives a solid of m.pt. —110° C. Its vapour density corresponds with the formula SOF2. It is soluble in arsenic chloride, ether, benzene and turpentine. 

These are prepared by the cyclization of either an arsenous chloride (29) (23JCS2489) or an arsenic acid (30) (58JCS1719). These routes have been used to prepare both the 1-methyl-and the 1-phenyl-arsindolines. The arsindolines show the normal properties of tertiary arsines and form addition compounds with alkyl halides or palladium dibromide. Attempts to dehydrogenate arsindolines to the parent arsindoles (31) have not been successful (Scheme 7). 

Nickel Monarsenide, NiAs, is formed when reduced nickel is heated at 400° to 800° C. in arsenic chloride vapour.10 It is identical with the mineral niccolite or nickeline (p. 12), and has, like it, a red colour. Its density is 7-57 at 0° C. When heated it commences to lose arsenic at... 

Sulphur may be freed from arsenic by treating it in the molten state with compounds, such as lime or sodium sulphide, which react to form compounds insoluble in the sulphur and which may be separated by settling and filtration 8 or the sulphur may be treated in the vapour or liquid state with chlorine or sulphur dichloride in excess, to form arsenic chloride, which may be removed by distillation and by scrubbing with air or an inert gas under reduced pressure.8 Other methods consist in... 

The anhydrous salt yields yellowish-white crystals of density2 7-3 at 15° C. and melting point 3 1042° C. The specific heat is 4 0-0728 and the molar heat 05-4. The index of refraction is 2 2-14. It is insoluble in water, aqueous ammonia and in solutions of ammonium salts,5 and only slightly soluble in aqueous alkali or brine.6 It is decomposed when heated with hydrogen chloride,7 forming lead and arsenic chlorides, and in hot nitric acid it dissolves to form arsenic acid and lead nitrate, the latter being precipitated if the acid is sufficiently concentrated.8... 

Ion exclusion chromatography has been applied to the determination of the following organic compounds and anions ozonisation products, carboxylic acids phosphate, nitrite, nitrate, silicate, bicarbonate, tartrate, malate, malonate, citrate, glycollate, formate and fumarate, arsenite, arsenate, chloride, bromide, iodide, thiocyanate and sulphate carbonate and also the cation arsenic. 

Poisons for the nickel catalyst are sulfur, arsenic, chlorides or other halogens, phosphates, copper and lead. A 15 percent nickel catalyst is poisoned at 775°C if the gas contains as little as 0.005 percent (50 ppm) sulfur. 

Tri-cobalt Di-arsenide, Co3As2, may be prepared by the action of arsenic chloride on metallic cobalt at 800-1400° C. or by heating mixtures of arsenic and cobalt in hydrogen or carbon monoxide at this temperature. It is also formed when powdered cobalt is heated in hydrogen containing arsenic vapour, and when cobalt arsenate or arsenite is reduced by hydrogen at 900° C. Its density is 7-82, and it loses arsenic when strongly heated.1... 

Tri-nickel Diarsenide, Ni3As2, is formed by reducing nickel arsenate or a mixture of nickel oxide and arsenious oxide with potassium cyanide,7 and also when reduced nickel is heated at 800-1400° C. in vaporised arsenic chloride.8 It is a grey substance, which melts at 1000° C. density 7-86. It is soluble in acids and fused alkalies. 

Inorganic arsenic complexes based on oxygen ligands is scarce. Simple esters of arsenic acid, As(0)(0R)3 (R = Me, Ft, n-Pr, n-Bu, CeHn) have tetragonal structures. Reaction of the diol ligand 2,4-dimethyl-2,4-pentanediol with AsCfr affords an arsenic chloride complex in which the As atom is part of a six-membered ring (37). ... 

SYNS ARSENIC BUTTER ARSENIC(III) CHLORIDE . ARSENIOUS CHLORIDE ARSENOUS CHLORIDE Q ARSENOUS TRICHLORIDE (9CI) CHLORURE d. ARSENIC (FRENCH) CHLORURE ARSENIEUX (FRENCH) FUMING LIQUID ARSENIC TRICHLOROARSINE TRICHLORURE d ARSENIC (FRENCH)... 

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