ammonium carbonate


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ammonium carbonate

[ə′mōn·yəm ′kär·bə‚nāt]
(inorganic chemistry)
(NH4)2CO3 The normal ammonium salt of carbonic acid, prepared by passing gaseous carbon dioxide into an aqueous solution of ammonia and allowing the vapors (ammonia, carbon dioxide, water) to crystallize.
NH4HCO3·NH2COONH4 A white, crystalline double salt of ammonium bicarbonate and ammonium carbamate obtained commercially; the principal ingredient of smelling salts.
References in periodicals archive ?
Effect of nitrogen sources on protease enzyme activity Bacterial specie Nitrogen sources Enzyme activity (U/mL) Bacillus subtilis Peptone 560 [+ or -] 2.87 Yeast extract 535 [+ or -]2.11 Beef extract 590 [+ or -] 2.33 Casein 650 [+ or -] 3.20 Ammonium carbonate 468 [+ or -] 2.35 Urea 421 [+ or -] 3.34 Table 3.
Reactant mixtures, comprising ammonium carbonate and manganese chloride were aged at room temperature in stoppered glass vessels under various conditions including stirring, sonication and under silent (without any external agitation) conditions for various periods of time.
For this purpose, a series of trials were performed by varying the ratio of acetonitrile and ammonium carbonate buffer and optimizing the chromatographic conditions on the Hypersil Gold Thermo Scientific C18 (250 cm x 4.6 mm) 5 [micro]m column.
dorsalis to 4 individual baits (Nu-Lure, Buminal, Bugs for Bugs, and beer waste) presented either alone or in combination with AA (1%, wt/vol) or ammonium carbonate (= AC) (1%, wt/vol).
The Raman band envelopes of aqueous solutions of ammonium carbonate, ammonium bicarbonate, and ammonium carbamate have been identified and analyzed [10] and form the basis for the previously reported speciation studies of the C[O.sub.2]-N[H.sub.3]-[H.sub.2]O system [11, 12].
Chemical leaveners include baking soda, baking powder, and ammonium carbonate.
Regeneration of ammonium carbonate after salting out AUTC crystals was mastered.
The separation was compared with that obtained using ammonium carbonate buffer with the same two columns in series.
Gabriel Mojay, chair of the Register of Qualified Aromatherapists, says: "The base of smelling salts is ammonium carbonate. It acts as a stimulant to revive - this is one instance where it could be of benefit.
The urea is hydrolyzed into ammonium carbonate by enzymatic reactions.
Precipitated calcium carbonate is formed by dissolving limestone and precipitating Ca[CO.sub.3] as very fine particles, using [CO.sub.2] to precipitate particles for calcium hydroxide (Aroganite process) or by using [Na.sub.2][CO.sub.3] or ammonium carbonate to precipitate from a calcium carbonate solution (Solvay process).
The basic principle of Solvay process is splitting ammonium chloride solution from a suspension of natrium bicarbonate through a reaction between salt solution and ammonium carbonate.