化学式：Na3PO4·12H2O
分子量：380.14
执行标准：HG/T2517-93
性 状：外观为白色或无色粒状结晶，易风化，易溶于水，不溶于有机溶剂，水溶液呈碱反应，1%水溶液pH值为12.1，相对密度1.62，熔点73.4℃。
技术指标：
序号 | 指标名称 | Na3PO4 | Na3PO4·12H2O |
工业级 | 食品级 | 工业级 | 食品级 |
1 | 主含量 %≥ | 98.0 | 98.0 | 98.0 | 98.0 |
2 | P2O5 %≥ | 42.4 | 42.4 | 18.3 | 18.3 |
3 | 氯化物（以Cl计） %≤ | - | - | 1.5 | 0.3 |
4 | 甲基橙碱度（以Na2O计）% | 36-40 | 36-40 | 15.5-19 | 15.5-19.0 |
5 | 硫酸盐 %≤ | - | 0.25 | 0.5 | 0.5 |
6 | 重金属（以Pb计） %≤ | - | 0.001 | - | 0.001 |
7 | 砷（以As计） %≤ | - | 0.0003 | - | 0.0003 |
8 | 氟化物（以F计） %≤ | - | 0.002 | - | 0.002 |
9 | 水不溶物 %≤ | 0.10 | 0.10 | 0.10 | 0.05 |
用 途：用于软水处理、日用化工、电镀磷化、印染固色、搪瓷助熔及制革脱脂等。
包 装：内塑外编，每袋净重25、50、1000Kg，贮于通风干燥处。
Product characteristics and USES
Trisodium phosphate
Chemical formula: Na3PO4 12 h2o
Molecular weight: 380.14
Execution standard: HG/T2517-93
Sexual shape, appearance for white or colorless granular crystal, easy weathering, soluble in water, not soluble in organic solvent, aqueous alkali reaction, 1% aqueous solution pH value of 12.1, relative density 1.62, melting point is 73.4 ℃.
Technical indicators:
The serial number
The index name
Na3PO4
Na3PO4 12 h2o
industrial-grade
Food grade
industrial-grade
Food grade
1
The main content of % p
98.0
98.0
98.0
98.0
2
P2O5 % p
42.4
42.4
18.3
18.3
3
Chloride (Cl) % or less
-
-
1.5
0.3
4
Methyl orange alkalinity (to Na2O) %
36 and 40
36 and 40
15.5-19
15.5 to 19.0
5
Sulfate % or less
-
0.25
0.5
0.5
6
Heavy metals (Pb) % or less
-
0.001
-
0.001
7
Arsenic (As) % or less
-
0.0003
-
0.0003
8
Fluoride (F) % or less
-
0.002
-
0.002
9
Water insolubles % or less
0.10
0.10
0.10
0.05
Use: used for water softening, daily chemical, electroplating, phosphating, solid color printing and dyeing, enamel help melt and leather degreasing, etc.
Package is installed, the model outside, 25, 50, 1000 kg net weight for each bag and stored in ventilated, dry place.