ammonium sulfate(redirected from E517)
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ammonium sulfate,chemical compound, (NH4)2SO4, a colorless-to-gray, rhombohedral crystalline substance that occurs in nature as the mineral mascagnite. It is soluble in water and insoluble in alcohol or liquid ammonia. It is prepared commercially by passing ammoniaammonia,
chemical compound, NH3, colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic pungent, penetrating odor.
..... Click the link for more information. , obtained from destructive distillation of coal, into sulfuric acid and is used as a fertilizerfertilizer,
organic or inorganic material containing one or more of the nutrients—mainly nitrogen, phosphorus, and potassium, and other essential elements required for plant growth.
..... Click the link for more information. , in preparing other ammonium compounds, and for fireproofing.
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ammonium sulfate[ə′mōn·yəm ′səl‚fāt]
(NH4)2SO4 Colorless, rhombic crystals which melt at 140°C and are soluble in water.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.