ASC13 ARSENIC TRICHLORIDE

ASC13 ARSENIC TRICHLORIDE 63.784 5.9075E-02 -6.9453E-05 3.5616E-08 -6.6261E-12 298 2000 gas... 

The ready dissolubility of arsenious oxide in hydrochloric acid suggests the formation of arsenic trichloride, AsC13, but evaporation of the solution causes expulsion of hydrogen chloride and leaves arsenious oxide. No arsenious salts with arsenic as a tervalent cation can exist in water in the absence of free acid owing to hydrolysis. 

Arsenic Trichloride, AsC13, was discovered in 1648 by Glauber,4 who obtained it by heating in a retort a mixture of white arsenic, common salt and sulphuric acid a thick oil, which he designated butter of arsenic, collected in the receiver.5 The compound is produced in many reactions and is usually formed when arsenic and its compounds are... 

Ammonia is rapidly absorbed by liquid arsenic trichloride to yield a pale yellow solid which is usually described 14 as arsenic tetrammino-trichloride, AsC13.4NH3, but which Hugot15 stated to be a mixture of... 

Additive compounds are formed with aniline, piperazine, hexamethylenetetramine and quinoline 8 with pyridine, the two compounds, AsC13. C5H5N (m.pt. 138-9° C.) and AsC13.2CbHsN (m.pt. 61° C.), have been isolated.9 Addition of arsenic trichloride to dry 1 4-dioxan gives an oxonium compound, (C4H802)3.2AsC13 (m.pt. 62° C.).10... 

Arsenic Trichloride(Arsenious Chloride), AsC13 mw 181.28, col oily liq, fr p -18°, bp 130.2°, d 2.16 at 25°, vap pres 10mm at 24° sol in w, ale, eth or oils. It is formed when arsenic burns in chlorine, or by distilling a mixt of As trioxide with HC1, or by heating As203 with sulfur chloride in a current of chlorine. It is used in ceramics, in the prepn of pharmaceuticals, and in the prepn of chloro defivs of arsine (qv) or chemical warfare agents (CWA s)(qv). See Vol 1, p A491... 

Arsenic trichloride, AsC13, and antimony tribromide, SbBr3, react differently from PC13 and are reduced by BSD to elemental arsenic and antimony. 

Phosphorus pentoxide gives phosphoryl chloride,10 possibly through an intermediate addition compound.11 In the case of phosphorus trioxide a reducing action was evident, phosphorus trichloride being formed along with the oxychloride.12 The reaction with arsenic trioxide and probably with arsenic pentoxide was found to produce AsC13 and at the same time phosphoryl chloride in the case of the pentoxide.13 The... 

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