Solution of Antimonious Chloride

By pouring a solution of antimonious chloride in dilute hydrooUorio acid into a boiling solution of sodic carbonate —... 

Exchange studies were carried out by solvolysing a series of butyl chlorides in 2m solutions of antimony pentafluoride in fluoro-sulfonic acid at —50° and —78°. The acid contained tracer levels of TjO and small amounts of water to provide sufficient nucleophiles to catalyse proton exchange reactions with some of the intermediates formed in the butyl system (Kramer, 1970, 1973). 

Zinc chloride is much less reactive than aluminum chloride and usually requires higher reaction temperatures. However, it has the advantage that, unlike aluminum chloride, it is less sensitive to moisture and can sometimes even be used in aqueous media.88 Concentrated aqueous solutions of ferric chloride, bismuth chloride, zinc bromide, stannous chloride, stannic chloride, and antimony chloride are also alkylation catalysts, particularly in the presence of hydrochloric acid.89... 

To piecipltatn the gold from an acid solution of Its chloride, Levol prefers to the protcsnlphate of iron an aoid solution of terchloride of antimony, in which case the following equation exhibits the reaction that takes place —... 

No reaction occurs between arsenic and solutions of antimony and bismuth chlorides. Ferric chloride is reduced thus—... 

BETTENDORF S REAGENT. A reagent used for the detection of arsenic in presence of bismuth and antimony compounds. It consists of a concentrated solution of stannous chloride in fuming hydrochloric acid. 

Solution of antimony pentafluoride in anhydrous HF was found to be an efficient medium for alkylation reactions of fluoroolefins. Compounds, known to give stable carbocations in superacidic media are excellent alkylating agents. For example, f-butyl chloride (57) reacts with TFE, giving the corresponding alkane 58 ... 

Reactions of antimony(III) ions A 0-2m solution of antimony(III) chloride, SbCl3, can be used to study these reactions. This can be prepared either by dissolving the solid antimony(III) chloride or antimony(III) oxide, Sb203, in dilute hydrochloric acid. 

ANTIMONIO (TRICLORURO di) ANTIMONOUS CHLORIDE ANTIMONOUS CHLORIDE (DOT) ANTIMONTRICHLORID ANTIMONY BUTTER ANTIMONY CHLORIDE ANTIMONY CHLORIDE (DOT) O ANTIMONY TRICHLORIDE ANTIMONY TRICHLORIDE, Uquid (DO"P ANTIMONY TRICHLORIDE, solid (DOT) ANTIMONY TRICHLORIDE, solution (DOT) ANTIMO-ONTRICHL-ORIDE BUTTER of ANTIMONY CHLORID ANTIMONITY CHLORURE ANTIMONIEUX C.I. 77056 STIBINE, TRICHLORO- TRICHLOROSTIBINE TRICHLORURE d ANTIMOINE... 

Eley and collaborators studied the conductimetric behaviour of solutions of antimony pentachloride in methylene chloride kept in a nitrogen atmosphere. The following selfionisation equilibria were postulated ... 

Replacement of halogen atoms by alkoxy groups may be hindered in N(7)- and N(9)-unsubstituted purines because of anion formation although this has been overcome to some extent by use of antimony chloride followed by the alcohol (71MI40904). Aryloxypurines have similarly been prepared from halogenopurines and hot alkaline phenol solutions. Since alkylation of oxopurines tends to lead almost exclusively to Af-alkyl derivatives (see Section 4.09.5.2.2(iv)), direct replacement of halogen atoms assumes special importance as a route to the alkoxypurine derivatives. 

Like all substances that have a polyene structure, vitamin A gives color reactions with many reagents, most of which arc either strong acids or chlorides of polyvalent metals. An intense blue is obtained with vitamin A in dry chloroform solution on the addition of a chlorofonn solution of antimony trichloride. Tliis color reaction (Carr-Pricc reaction) has been studied extensively and is the basis of a eolorimetric assay for vitamin A. ... 

Attliuiwiy may be separated from molybdenum by txiiling the solution of their chlorides, containing an excess of 11(31 but n nitrates or sulfates, with sheet lead. Metallic antimony is precipitated while molybdenum is reduced hut remains in solution. 

With the advent of esr spectroscopy aromatic-antimony pentachloride precipitates were shown to contain the aromatic cation radical (Weissman et al., 1957), and this in turn accounted for the earlier discovery of paramagnetism in the salts obtained from reaction of aromatic amines with antimony pentachloride (Kainer and Hausser, 1933). Characterization of cation radicals in nitro-methane and nitrobenzene solutions of antimony pentachloride by visible spectroscopy soon followed. Eventually, by working with degassed solutions of antimony pentachloride in dichloromethane at —70° it was possible to obtain esr spectra of aromatic hydrocarbon cation radicals with extraordinarily well-resolved hyperfine patterns (Lewis and Singer, 1965, 1966). Similar success was obtained with alkyl aryl ether (Forbes and Sullivan, 1966), and organosulfur cation radicals in aluminum chloride-nitromethane solutions at —50° (Shine and Sullivan, 1968 Sullivan, 1968). In this work, resolution... 

All the diarylstibinic acids are solids, and their method of preparation has an influence upon their solubility, eg, the hydrolysis of di-phenylstibinic chloride by ammonium hydroxide yields an acid which is insoluble in ammonium hydroxide or sodium carbonate, but dissolves in sodium hydroxide, whilst solution of the chloride in sodium hydroxide gives a stibinic acid on acidification with acetic acid which dissolves in all the foregoing alkalis. The secondary acids also differ from the primary acids in their action towards hydrochloric acid and ammonium chloride diphenylstibmic acid is insoluble in concentrated hydrochloric acid, and m hot dilute hydrochloric acid its solutions do not give a double salt with ammonium chloride, but pyridine hydrochloride precipitates diphenylstibmic chloride as a double salt. Nitration of the secondary stibinic acids yields nitro-acids containing the nitro-group in the meia-position to the antimony. Reduction of the secondary acids yields stibinoxides. Mercuric chloride converts diphenylstibmic acid in methyl alcohol-hydrogen chloride solution into phenylmercuric chloride and antimony trichloride. 

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