Mercuric oxychloride

When chlorine acts on mercuric oxide, HgO, brownish-yellow mercuric oxychloride, Hg2OCl2, and chlorine monoxide, C120, are formed 2HgO+2Cl2=Hg2OCl2 +C120. In his Recherches sur la nature des combinaisons decolorantes du chlore, A. J. Balard 2 first described the preparation of the gas by this reaction in 1834. J. L. Gay Lussac filled a dry flask with dry chlorine, and introduced a test tube filled two-thirds with a mercuric oxide and the remainder with sand. The flask was closed and then well shaken. In a few minutes, the chlorine gas was converted into half its volume of chlorine monoxide. 

Guanidines have been prepared by the reaction between an amine, or an amine salt, and a host of other reagents, such as a thiourea in the presence of lead or mercuric oxide [83, 157, 158], carbodi-imides [140, 174, 175],calcium cyanamide [176, 177], isonitrile dichlorides [178—180], chloroformamidines [181], dialkyl imidocarbonates [182], orthocarbonate esters [183], trichloro-methanesulphenyl chloride [184], and nitro- or nitroso-guanidines [185-188]. Substituted ureas can furnish guanidines, either by treatment with amines and phosphorus oxychloride [189], or by reaction with phenylisocyanate [190] or phosgene [191]. 

Synonym Gamma-Chloropropylene Oxide 3-Chloro-1,2-Propylene Oxide Chlorosulfonic Acid Chlorothene Chiorotoluene, Alpha Alpha-Chlorotoluene Omega-Chlorotoluene Chlorotrifluoroethylene Chlorotrimethylsilane Chlorsulfonic Acid Clilorylen Clip Chromic Acid Chromic Anhydride Chromic Oxide Chromium (VI) Dioxychloride Chromium Oxychloride Chromium Trioxide Chromyl Chloride Cianurina Citric Acid Citric Acid, Diammonium Salt Clarified Oil Clorox Cc Ral Coal Tar Oil Cobalt Acetate Cobalt Acetate Tetrahydrate Cobalt (II) Acetate Cobalt Chloride Cobalt (II) Chloride Cobaltous Acetate Cobaltous Chloride Cobaltous Chloride Dihydrate Cobaltous Chloride Hexahydrate Cobaltous Nitrate Cobaltous Nitrate Hexahydrate Cobaltous Sulfate Heptahydrate Cobalt Nitrate Cobalt (II) Nitrate Cobalt Sulfate Compound Name Epichlorohydrin Epichlorohydrin Chlorosulfonic Acid Trichloroethane Benzyl Chloride Benzyl Chloride Benzyl Chloride Trifluorochloroethylene Trimethylchlorosilane Chlorosulfonic Acid Trichloroethylene Cumene Hydroperoxide Chromic Anhydride Chromic Anhydride Chromic Anhydride Chromyl Chloride Chromyl Chloride Chromic Anhydride Chromyl Chloride Mercuric Cyanide Citric Acid Ammonium Citrate Oil Clarified Sodium Hypochlorite Coumaphos Oil Coal Tar Cobalt Acetate Cobalt Acetate Cobalt Acetate Cobalt Chloride Cobalt Chloride Cobalt Acetate Cobalt Chloride Cobalt Chloride Cobalt Chloride Cobalt Nitrate Cobalt Nitrate Cobalt Sulfate Cobalt Nitrate Cobalt Nitrate Cobalt Sulfate... 

A. J. Balard found mercury immediately decomposes hypochlorous acid without the disengagement of any gas, but mercury oxychloride is formed. P. Grouvelle reported previously that when chlorine acts on mercuric oxide suspended in water, mercury oxychloride, very slightly soluble in cold water, is formed. L. J. Thenard found that the liquid contained both chloride and chlorate of mercury, also in soln. A. J. Balard, however, believed that these bodies are formed consecutively, and that their existence was preceded by that of a mercuric hypochlorite, as takes place with the salts of silver, and, as previously indicated, he prepared hypochlorous acid by the action of chlorine on mercuric oxide suspended in water. No mercury hypobromite has yet been isolated. There is a possible formation of mercury hypoiodite, or more probably of hypoiodous acid, when iodine is shaken up with... 

Mercuric Orthoarsenate, Hg8(As04)2, is obtained by precipitating a solution of mercuric nitrate with a solution of sodium mono- or dihydrogen arsenate, or by dropping aqueous arsenic acid into excess of mercuric nitrate solution.4 It is a heavy citron-yellow powder. Hot water dissolves it slightly without decomposition, and shining crystals may separate from the cooled solution. Hydrochloric acid dissolves it freely, nitric acid less readily, and arsenic acid not at all. Brine solution converts it into red-brown mercury oxychloride. Potassium bromide solution colours it brown, and a yellow residue is ultimately left. Potassium iodide forms mercuric iodide. 

Tetrahydrobenzo[ ]thiophene behaves like thiophene in electrophilic substitution reactions. Thus, it is formylated with a mixture of vV-methylformanilide and phosphorus oxychloride,436 iodinated in the presence of mercuric oxide,193 and brominated by V-bromosuccinimide,193 all in the 2-position in Friedel-Crafts reactions with acetyl chloride,194-436 propionyl chloride,436 succinic... 

Mercuric Iodide 7787-59-9 Bismuth Oxychloride 79-14-1 Glycolic Acid... 

Triethylphosphine oxide, (C2Hg)gPO, may be obtained by the following methods (1) By the oxidation of triethylphosphine by air, nitric acid or mercuric oxide. (2) By the action of potassium hydroxide on the product resulting from reaction between zinc diethyl and the compound CgHgOPClg. (3) One part of white phosphorus and 13 parts of ethyl iodide are heated together for 24 hours at 175° to 180° C., and the reaction mass then boiled with 97 per cent, alcohol until no more ethyl iodide is formed. The solution is then distilled vith 4 parts of potassium hydroxide. (4) Magnesium ethyl bromide is allowed to react with phosphorus oxychloride and the mixture then decomposed with dilute hydrochloric acid." (5) By heating the reaction product from zinc diethyl and phosphorus oxychloride with potassium hydroxide and a little water. ... 

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