Chemical formula：Na2HPO4.nH2O(n=0,12)
Molecular weight：Na2HPO4.12H2O--358.15, Na2HPO4--141.98
Standard executed: HG/T2965-2009(Tech grade), GB25568-2010(Food grade)
CAS Number：7758-79-4
Property：Anhydrous goods is white powder and Hydrous goods is white or colorless, crystalline free flowing solid, efflorescence in air, soluble in water easily.
技术指标: Technical Specifications：
| 序号No. | 指标名称Specifications | 12水物Na2HPO4.12H2O | 无水物Na2HPO4 | ||
| 工业级Tech Grade | 食品级Food Grade | 工业级Tech Grade | 食品级Food Grade | ||
| 1 | 主含量 Main content % ≥ | 98.0 | 98.0 | 98.0 | 98.0 |
| 2 | 1%水溶液PH值 PH of 1% solution | 9±0.2 | 9±0.2 | 9±0.2 | 9±0.2 |
| 3 | 硫酸盐 Sulfate, as SO4 % ≤ | 0.7 | – | – | – |
| 4 | 氯化物 Chloride, as CI % ≤ | 0.05 | – | – | – |
| 5 | 氟化物 Fluoride, as F % ≤ | 0.05 | 0.005 | 0.05 | 0.005 |
| 6 | 重金属 Heavy metal, As Pb % ≤ | – | 0.001 | – | 0.001 |
| 7 | 砷 Arsenic, as AS % ≤ | 0.005 | 0.0003 | 0.005 | 0.0003 |
| 8 | 水不溶物 Water insoluble % ≤ | 0.05 | 0.20 | 0.10 | 0.20 |
| 9 | 干燥减量 Loss on drying % ≤ | – | 61 | 5 | 5 |
Uses：Used as fire-extinguishing agent for fabric, woods, paper; as soft water agent for boilers; as food additive, and so on.
Packing：Plastic woven bag. Net weight 25 Kg、 50Kg 、1000Kg , store at a cool, dry and well ventilated place.
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