Mercuric-ammonium salts

Mercuric-Ammonium Salts. Several expl compds of general formula Hg3NX, where X is either N02, CIO, CIO4, I04, Cr04, Mn04 or B03,... 

Protonic initiation is also the end result of a large number of other initiating systems. Strong acids are generated in situ by a variety of different chemistries (6). These include initiation by carbenium ions, eg, trityl or diazonium salts (151) by an electric current in the presence of a quartenary ammonium salt (152) by halonium, triaryl sulfonium, and triaryl selenonium salts with uv irradiation (153—155) by mercuric perchlorate, nitrosyl hexafluorophosphate, or nitryl hexafluorophosphate (156) and by interaction of free radicals with certain metal salts (157). Reports of "new" initiating systems are often the result of such secondary reactions. Other reports suggest standard polymerization processes with perhaps novel anions. These latter include (Tf)4Al (158) heteropoly acids, eg, tungstophosphate anion (159,160) transition-metal-based systems, eg, Pt (161) or rare earths (162) and numerous systems based on tri flic acid (158,163—166). Coordination polymerization of THF may be in a different class (167). 

It forms salts some cf which are probably expl Ammonium salt, NH4C3H8N204, cryscs(from ale), mp 171° Mercuric salt, Hg(C3HgN204)2, wh powd Potassium salt, KC3HsN204, large prisms... 

AMMONIA CONTENT. The concentration of ammonia nitrogen in the water-extractable components of the fabric was determined colorimetrically by Nesslers reaction (23). Under alkaline conditions, Nesslers reagent (mercuric iodide-potassium iodide solution) reacts with ammonia that has been released from ammonium salts by the alkali present to produce a yellow compound by the following reaction ... 

This results in 63 per cent, yield when the same quantities of materials are used as in the preceding preparation, the 2-bromo-6-methylphenyl-arsinic acid being replaced by 2-bromo-4-methylphenylarsinic acid. The compound crystallises in colourless needles, melting with decomposition at 158° to 159° C., readily soluble in acetic acid, methyl and ethyl alcohols, and acetone, very sparingly soluble in water. The sodium, potassium and ammonium salts are readily soluble in water the silver, mercuric and lead salts form white, flocculent precipitates, insoluble in cold or hot water the silver salt is soluble in ammonia the mercurous, calcium and barium salts arc white precipitates, insoluble in cold but soluble in hot water. The magnesium salt is obtained when a solution of the ammonium salt is boiled with magnesia mixture. 

Mercuric acetate is heated with benzoic acid until no mercuric oxide is obtained by adding sodium hydroxide to a test portion. The melt is then treated with ammonium hydroxide to form the ammonium salt, from which the anhydride is isolated by adding acetic acid-... 

ARAGONITE (1317-65-3) CaCO, Noncombustible solid. Incompatible with acids (exothermic reaction with extensive foaming and release of gas is caused when acid is highly concentrated) acid salts alum, ammonium salts fluorine (ignition), germanium, lead diacetate, magnesium, mercurous chloride, silicon, silver nitrate, titanium. Thermal decomposition above 1517°F/825°C releases calcium oxide (quicklime) and COj. 

CALCITE (1317-65-3) Incompatible with acids, ammonium salts, fluorine, germanium, lead diacetate, magnesium, mercurous chloride, silicon, silver nitrate, titanium. 

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