Gold trichloride

Gold thiosulfate complexes of the form Na2[Au(S202)2] 2H20 [19153-98-1] are prepared by addition of gold trichloride to concentrated sodium thiosulfate solution (89). The gold is completely reduced and some thiosulfate is oxidized to tetrathionate. This complex has been used in the treatment of rheumatoid arthritis. 

Gold(I) chloride is prepared by thermal decomposition of gold trichloride ... 

Formula AuCls MW 303.33 exists as a dimer, AU2CI6 in solid and vapor state forms a dihydrate, AuCls 2H2O Synonyms gold trichloride auric chloride. 

Formula HAuCh MW 339.81 exists as tetrahydrate, HAuCh 4H20 MW 411.85 Synonyms chloroauric acid aurochlorohydric acid hydrochloroauric acid gold trichloride acid hydrogen tetrachloroaurate(lll). 

Daniel (Ref 1) stated that Vor fulminant deposits as a chamois (clear yel) powder on tteating gold trichloride with ammonia. The same method is listed by Davis on p 401, who also says that the method of prepn by Basil. Valentin succeeded because the sal ammoniac used for the prepn of the aqua regia supplied the necessary ammonia. If gold is dissolved in aqua regia prepd from nitric acid and common salt, and if. the soln is treated with K carbonate, the resulting ppt is not expl. FG loses its expl props if it is allowed to stand in contact with sulfur... 

N 16.08% tetrg pyramid crysts(from ale), mp 134-135° very sol in w sol in chlf diffc sol in other org solvs was prepd by heating piperazine with ethylene chlorohydrin.at 105°. This compd forms numerous salts, such as Hydrochloride, Hydrobromide, Nitrate. The Auric Chloride or Gold Trichloride, C8H1BN202+2HCl+2AuCl3, forms It yel ndls(from dil HC1), mp 205-207° (dec) and the Picrate, yel ndls(from ale), mp 245 246° (dec)... 

Synonyms Aurochlorohydric acid, Chlorauric acid, Gold trichloride (acid). 

Phillips and Timms [599] described a less general method. They converted germanium and silicon in alloys into hydrides and further into chlorides by contact with gold trichloride. They performed GC on a column packed with 13% of silicone 702 on Celite with the use of a gas-density balance for detection. Juvet and Fischer [600] developed a special reactor coupled directly to the chromatographic column, in which they fluorinated metals in alloys, carbides, oxides, sulphides and salts. In these samples, they determined quantitatively uranium, sulphur, selenium, technetium, tungsten, molybdenum, rhenium, silicon, boron, osmium, vanadium, iridium and platinum as fluorides. They performed the analysis on a PTFE column packed with 15% of Kel-F oil No. 10 on Chromosorb T. Prior to analysis the column was conditioned with fluorine and chlorine trifluoride in order to remove moisture and reactive organic compounds. The thermal conductivity detector was equipped with nickel-coated filaments resistant to corrosion with metal fluorides. Fig. 5.34 illustrates the analysis of tungsten, rhenium and osmium fluorides by this method. 

SYNS AURIC CHLORIDE GOLD(III) CHLORIDE GOLD TRICHLORIDE... 

Derivation By the reaction of a neutral solution of gold trichloride with stannous and stannic chlorides, yielding a mixture of colloidal gold and tin oxide in varying proportions. 

Yellowish powder, d 7.57. Dec at about 289p into gold and Cl]. Practically insol in water, but slowly dec by it, more rapidly on heating, with formation of gold trichloride and separation of metallic gold sol in alkali cyanides. With solns of alkali bromides, metallic gold and potassium auri-bromide are formed. 

AuCI3 GOLD TRICHLORIDE 96 BaH2 BARIUM HYDRIDE 142... 

Gold trichloride acid chloroauric acid aurochlorohydric acid hydrochloroauric acid. 

M.S.A. Abdou and S. Holdcroft, Oxidation of jt-conjugated polymers with gold trichloride enhanced stability of the electronically conducting state and electroless deposition of Au°, Synth. Met., 60, 93 96 (1993). 

Gold trichloride has recently been shown to react with hexamethylditin to produce dimethyltin dichloride as well as trimethyltin chloride (273). 

The propensity of transition metal salts such as silver trifluoroacetate (AgTFA), copper acetylacetonate (CuACAC), and gold trichloride (AuCb) to induce molecular cationization is illustrated in Figure 42.19, for the polymer antioxydant Irganox 1010 (Ciba Specialty Chemicals Corporation) and for PS oligomers [304]. In the case of AgTFA, cluster ions and larger adduct ions of the type (M-i-Ag )+ are also visible in the mass spectra. This observation indicates that the silver atoms form clusters on the sample surface. 

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