TRISODIUM PHOSPHATE
1,Formula : Na3PO4 ;Na3PO4·12H2O
2,Formula wt: anhydrous 163.94 ; Formula wt: dodecahydrate 380.12
3,CAS: anhydrous [7601-54-9]; CAS: dodecahydrate [10101-89-0]
4,Specificity: A kind of six side crystallize in the shape of needle. Can melt in water, can not melt in organism aqua. Relative density is 1.62 (20°C). The temperature reach the 73.3-76.7°C it will melt. It vaporizes. When the temperature reach 100°C it will lose water change into Na3PO4. Aqueous is alkaline, erode to the skin.
5,Packing: 25kg net paper bag or 1mt big bag with PE liner.
Name of index |
BP98 |
E-331(iii) |
Description |
Crystalline white powder or colourless crystals |
|
Content |
99.0-101.0% |
≥99.0%( anhydrous basis) |
Acidity and Alkalinity |
Accord with the test |
-- |
Sulphate,≤% |
0.015 |
-- |
Heavy metals(As Pb), ≤% |
0.001 |
0.0005 |
Oxalate(As H2C2O4), ≤% |
0.03 |
0.01 |
Easy carbonify substance |
Accord with the test |
-- |
Chloride, ≤% |
0.005 |
-- |
Loss on drying, |
11.0-13.0% |
≤13.5% |
pH value(5% aqueous solution) |
-- |
7.5-9 |
Arsenic(As),≤ppm |
-- |
1 |
Lead(Pb),≤ppm |
-- |
1 |
Mercury(Hg),≤ppm |
-- |
1 |
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