ammonium borate

ammonium borate [INORG CHEM]NH4BO3 A white, crystalline, water-soluble salt which

decomposes at 198 C; used as a fire retardant on fabrics.

ammonium bitartrate

ammonium bitartrate [ORG CHEM]NH4HC4H4O6 Colorless crystals that are soluble in

water; used to make baking powder and to detect calcium. Also known as monoam-

monium tartrate. { ə mo ¯ n yəmbı ¯ ta ¨ r tra ¯ t}

ammonium bichromate

ammonium bichromate See ammonium dichromate. { ə mo ¯ n yəmbı ¯ kro ¯ ma ¯ t}

ammonium bifluoride

ammonium bifluoride [INORG CHEM]NH4F HF A salt that crystallizes in the orthorhom-

bic system and is soluble in water; prepared in the form of white flakes from ammonia

treated with hydrogen fluoride; used in solution as a fungicide and wood preservative.

Also known as ammonium acid fluoride; ammonium hydrogen fluoride. { ə mo ¯ n

yəmbı ¯ flu ˙ r ı ¯d}

ammonium bicarbonate

ammonium bicarbonate [INORG CHEM]NH4HCO3 White, crystalline, water-soluble salt;

used in baking powders and in fire-extinguishing mixtures. Also known as ammo-

nium hydrogen carbonate. { ə mo ¯ n yəmbı ¯ ka ¨ r bə na ¯ t}

ammonium benzoate

ammonium benzoate [ORG CHEM]NH4C7H5O2 A salt of benzoic acid prepared as a

coarse, white powder; used as a preservative in certain adhesives and rubber latex.

{ ə mo ¯ n yəm ben zə wa ¯ t}

ammonium alum

ammonium alum See ammonium aluminum sulfate. { ə mo ¯ n yəm al əm}

ammonium aluminum sulfate

ammonium aluminum sulfate [INORG CHEM]NH4Al(SO4)2 12H2O Colorless, odorless

crystals that are soluble in water; used in manufacturing medicines and baking

powder, dyeing, papermaking, and tanning. Also known as alum; aluminum ammo-

nium sulfate; ammonia alum; ammonium alum. { ə mo ¯ n yəm ə¦lu ¨ mə nəm səl fa ¯ t}

ammonium alginate

ammonium alginate [ORG CHEM](C6H7O6 NH4)n A high-molecular-weight, hydrophilic

colloid; used as a thickening agent/stabilizer in ice cream, cheese, canned fruits,

and other food products. { ə mo ¯ n yəm al jə na ¯ t}

ammoniumacetate

ammoniumacetate [ORG CHEM] 1. CH3COONH4 A normal salt formed by the neutraliza-

tion of acetic acid with ammonium hydroxide; a white, crystalline, deliquescent

material used in solution for the standardization of electrodes for hydrogen ions.

2. CH3COONH4 CH3COOH An acid salt resulting from the distillation of the neutral

salt or from its solution in hot acetic acid; crystallizes in deliquescent needles.

3. A mixture of the normal and acetic salts; used as a mordant in the dyeing of wool.

{ ə mo ¯ n yəm as ə ta ¯ t}

ammonia water

ammonia water [CHEM] A water solution of ammonia; a clear colorless liquid that is

basic because of dissociation of NH4OH to produce hydroxide ions; used as a reagent,

solvent, and neutralizing agent. { ə mo ¯ n yə wo ˙ d ər}

ammonification

ammonification [CHEM] Addition of ammonia or ammonia compounds, especially to

the soil. { ə ma ¨n ə fə ka ¯ shən}

ammoniated superphosphate

ammoniated superphosphate [INORG CHEM] A fertilizer containing 5 parts of ammonia

to 100 parts of superphosphate. { ə mo ¯ n e ¯ a ¯d əd su ¨ pər fa ¨s fa ¯ t}

ammoniation

ammoniation [CHEM] Treating or combining with ammonia. { ə mo ¯ n e ¯ a ¯ shən}

ammoniated mercury

ammoniated mercury [INORG CHEM] HgNH2Cl A white powder that darkens on light

exposure; insoluble in water and alcohol, soluble in ammonium carbonate solutions

and in warm acids; used in pharmaceuticals and as a local anti-infective in medicine.

{ ə mo ¯ n e ¯ a ¯d əd mər kyə re ¯ }

ammoniated mercuric chloride

ammoniated mercuric chloride See ammoniated mercury. { ə¦mo ¯ n e ¯ a ¯d ədmər¦kyu ¨ r

ik ¦klo ˙ r ı ¯d}

ammoniacal

ammoniacal [INORG CHEM] Pertaining to ammonia or its properties. Also known as

ammoniac. { ¦a mə¦nı ¯ ə kəl}

ammonia dynamite

ammonia dynamite [CHEM] Dynamite with part of the nitroglycerin replaced by ammo-

nium nitrate. { ə mo ¯ n yə dı ¯ nə mı ¯t}

ammoniac

ammoniac See ammoniacal. { ə mo ¯ n e ¯ ak }

ammonia alum

ammonia alum See ammonium aluminum sulfate. { ə mo ¯ n yə al əm}