Chemical formula：Na3PO4.nH2O(n=0,12)
分子量(Molecular weight)：Na3PO4.12H2O–380.14,Na3PO4–163.97
CAS number: 7758-79-4/10101-89-0
Standard executed:HG/T2517-1993(Tech grade） GB25565-2010（Food grade）
Property：White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline, relative density at 1.62g/cm³, melting point is 73.4℃
技术指标：Technical Specifications：
| 序号No. | 指标名称Specifications | 无水物Na3PO4 | 12水物Na3PO4.12H2O | ||
| 工业级Tech Grade | 食品级Food Grade | 工业级Tech Grade | 食品级Food Grade | ||
| 1 | 外观Appearance | 白色粉末 White Powder | 白色或无色粒状晶体White or colorless crystal | ||
| 2 | 主含量 Main contents %≥ | 98.0 | 98.0 | 98.0 | 98.0 |
| 3 | 五氧化二磷 Phosphorus%≥ | 39.50 | 39.50 | 18.30 | 18.30 |
| 4 | 甲基橙碱度 Sodium oxide, as Na2O%≥ | 36-40 | 36-40 | 15.5-19 | 15.5-19 |
| 5 | 硫酸盐 Sulfate(as SO4)% ≤ | 0.25 | 0.25 | 0.5 | 0.5 |
| 6 | PH值 PH value | 11.5-12.5 | 11.5-12.5 | 11.5-12.5 | 11.5-12.5 |
| 7 | 水不溶物 Water insoluble % ≤ | 0.1 | 0.1 | 0.1 | 0.1 |
| 8 | 重金属（以铅计） Heavy metals(as Pb)% ≤ | 0.001 | 0.001 | ||
| 9 | 砷 Arsenic(as As)% ≤ | 0.0003 | 0.0003 | ||
| 10 | 氯化物 Fluoride(as F)% ≤ | 0.005 | 0.005 | ||
Uses: Applied in industry as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on; In food, it is mainly used as emulsification agent, and nutrition ingredients , and quality improver, etc.
Packing：Plastic woven bag. Net weight 25 Kg、 50Kg 、1000Kg , store at a cool, dry and well ventilated place.
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