产品名称:磷酸二氢钠
英文名称: sodium dihydrgen phosphate
分子式:NaH2PO4.2H2O
分子量:156.01
性能特点: 无色斜方晶高结晶,极易溶于水,在湿空气中易结块,100℃时脱水成无水物。水溶液呈酸性反应。(PH=4.5)
用途: 用于锅炉水处理,电镀、制革、焙粉、染料助剂,洗涤剂、云母片彻合、酸性缓冲剂等,也是制取六偏磷酸钠和缩聚磷酸盐的原料。
产品质量: 符合HG2321-97
指标名称 |
指标 | |
一等品 |
合格品 | |
磷酸二氢钠(以NaH2PO4·H2O)含量,% ≥ |
96.0 |
95.0 |
硫酸盐(以SO4-2计)含量,% ≤ |
0.8 |
0.8 |
氟化物(以F-计)含量,% ≤ |
0.1 |
0.2 |
水不溶物 % ≤ |
0.2 |
0.3 |
Ph值 |
4.2-4.6 |
4.2-4.6 |
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