基本信息
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磷酸二氫銨
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7722-76-1
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磷銨;磷酸二氫銨;工業磷酸一銨;磷酸二氫銨(工業級);磷酸一銨(工業級)
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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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詳細信息
【性 質】白色粒狀晶體，易溶于水，微溶于醇，不溶于丙酮。在空氣中穩定，于100°C時有少量分解。固體的相對密度為1.803(19°C),熔點為190°C。高于熔點時失去氨和水生成偏磷酸銨和磷酸的混合物。水溶液呈酸性反應，1%水溶液PH值為4.5。【用 途】主要用于木材、紙張、織物作防火劑，也用作防火涂料原料，干粉滅火劑等。在農業上作為無氯型N、P二元高效復合肥使用，其總養分為（N+P2O5)為73%，是配制N、P、K三元復合肥的優質原料。
