基本信息
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磷酸二氢铵
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7722-76-1
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磷铵;磷酸二氢铵;工业磷酸一铵;磷酸二氢铵(工业级);磷酸一铵(工业级)
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NH4H2PO4
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115.03
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Monoammonium phosphate
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231-764-5
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1.02g/mLat 20°C
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Phosphoricacid, monoammonium salt (8CI,9CI);ABC;ABC (fire extinguisher);ADP;ADP(filter);Ammonium biphosphate;Ammonium diacid phosphate;Ammonium dihydrogenorthophosphate;Ammonium dihydrogen phosphate;Ammonium dihydrophosphate;Ammonium hydrogen phosphate;Ammonium monobasic phosphate;Ammonium orthophosphate monobasic;Ammonium phosphate;Ammonium primary phosphate;Dihydrogen ammonium phosphate;Monoammonium acid phosphate;Monoammonium dihydrogenorthophosphate;Monoammonium dihydrogen phosphate;Monoammonium dihydrogenphosphate;Monoammonium hydrogen phosphate;Monoammoniumorthophosphate;
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190°C (dec.)(lit.)
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158oC at 760 mmHg
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详细信息
性状:无色至白色有光泽结晶或结晶性粉末，无臭，在空气中稳定，密度1.803g/cm3,熔点190度，易溶于水，微溶于乙醇，加热至190度变为偏磷酸铵。
作用：缓冲剂，面团调节剂，膨松剂，酵母食料，酿造发酵助剂;用于焙烤食品，发酵粉，冷冻甜食，人造奶油，发泡顶端料等。
限量：GB 2760-96,肉制品1g/kg。
食品级质量指标：
1.主含量（以NH4H2PO4计）%≥ 99.0
2.五氧化二磷（以P2O5计）%≥61.0
3.氮（以N计）%≥11.8
4.PH值 4.4-4.8
5.水份% ≤ 0.2
6.重金属（以Pb计）%≤ 0.001
7.砷（以As计）%≤0.0003
8.氟化物（以F计）%≤ 0.005
9.水不溶物%≤ 0.10
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