ammonium carbonate

1. A carbonate of ammonium, (NH₄)₂CO₃.

2. The white, crystalline double salt of ammonium bicarbonate and ammonium carbamate, (NH₄)HCO₃·NH₄CO₂NH₂, produced commercially and used in smelling salts and baking powder. Also called hartshorn.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ammonium carbonate

1. (Elements & Compounds) an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH4)HCO3.(NH4)CO2NH2

2. (Elements & Compounds) an unstable substance that is produced by treating this compound with ammonia. Formula: (NH4)2CO3

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ammo′nium car′bonate

a water-soluble mixture of carbonate and carbamate of ammonium: used chiefly in smelling salts and baking powder; hartshorn.

[1880–85]

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Noun

ammonium carbonate - a carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds

carbonate - a salt or ester of carbonic acid (containing the anion CO3)

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References in periodicals archive

The extraction process uses conventional unit operations (crushing, grinding, cycloning, flotation, leaching, solid-liquid separation, solvent extraction and ion exchange, precipitation and calcination) and common chemicals (oxygen, sulfuric acid, ammonium carbonate and ammonium sulfate).

First Vanadium Announces Preliminary Process Flow Sheet for Carlin Vanadium Project in Nevada

Alkaline protease production was carried out in mediums 1 to 6 separately along with various nitrogen sources by replacing only peptone with other nitrogen sources like yeast extract, beef extract, casein, ammonium carbonate and urea, respectively.

Optimisation of Production Condition of Alkaline Protease Using Indigenous Bacillus subtilis from Agricultural Soil

For this, an aqueous solution of manganese chloride (0.01-0.06 molL-1) were allowed to react with an aqueous solution of ammonium carbonate (0.01-0.03 molL-1) at various temperatures (25-60 AdegC) for different periods of time (10-40 min) with and without agitation (magnetic stirring/sonication).

Synthesis and Characterization of uniform Fine particles of Manganese Oxide and its Morphological Stability towards Calcination Rates

Acetonitrile HPLC grade and ammonium carbonate were purchased from Merck (Merck Serono Amman, Jordan).

Development and Validation of an HPLC Method for Determination of Antidiabetic Drug Alogliptin Benzoate in Bulk and Tablets

The attractiveness of beer waste and the commercially available baits Nu-Lure[R] Insect Bait, Buminal[R], and Bugs for Bugs[R] Fruit Fly Bait with and without ammonium acetate or ammonium carbonate to males and females of Bactrocera dorsalis (Hendel) and B.

Attraction of Bactrocera cucurbitae and Bactrocera dorsalis (Diptera: Tephritidae) to beer waste and other protein sources laced with ammonium acetate

If the absorption is performed under 2-10[degrees]C, which is called the chilled ammonia process, there can be precipitations of ammonium carbonate compounds while if the absorption is increased to 25-40[degrees]C, the precipitation problem is eliminated [6].

Equilibrium Measurements of the N[H.sub.3]-C[O.sub.2]-[H.sub.2]O System: Speciation Based on Raman Spectroscopy and Multivariate Modeling

[9] Weiss, C.A, Torres-Cancel, K, Moser, R.D., Allison, P.G., Gore, E.R., Chandler, M.Q., and Malone, P.G., Influence of Temperatme on Calcium Carbonate Polymorph formed from Ammonium Carbonate and Calcium Acetate, Journal of Nanotechnology and Smart Materials, 1, 2013, pp.

Effect of temperature on precipitation rate of calcium carbonate produced through microbial metabolic process of bio materials

Urea is obtained in two stages; the first stage is the reaction between carbon dioxide and ammonia under pressure to form ammonium carbonate (NH2 COONH4) by highly exothermic reaction.

New method of preventing agglomeration of urea powder by using two of the additives to qualify it for some industrial uses

Out of these 43 kits, the CoA noted that seven out of the 54 items found in the kit were either expiring or already expired which include ammonium carbonate, antibacterial ointment, chlorpheneramine maleate, sodium hypochlorite, IV infusion set,dry scrub, and chloroquine phosphate, according to Hao.

Army spokesman clears issues amid expired combat medical kits

For formulations C and PTQ, borate and didecyl dimethyl ammonium carbonate (DDACarb) indicators, respectively, were used to measure penetration.

A serendipitous field test against the cellar fungus Coniophora olivacea

The protocol assumes the most likely adulterants of organic fertilizers are various forms of ammonia (e.g., aqua ammonia or ammonium sulfate) or urea, which is converted to ammonium carbonate and ultimately ammonia in the presence of urease (Volk 1959).

Testing protocol ensures the authenticity of organic fertilizers