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Trisodium phosphate |
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Alias: |
Dodecahydrate sodium phosphate |
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Quality standard: |
HG/T2517-93 |
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Molecular formula: |
Na3PO4·12H2O |
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Molecular weight: |
380.12 |
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Properties:
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Colorless or white crystal. Density: 1.62(20℃). Melting point: 73.3-76.7℃ (decomposing). Dissolving in water and the water solution is alkali; insoluble in alcohol and carbon bisulfide. The water solution is corrosive for skin. |
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Application:
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In the industries of chemical, textile, printing and dyeing, paper-making and generating, it can be used as softening agent and detergent, boiler antiscale, softening agent in paper dyeing, acid and alkali buffering agent of producing satin paper cementing compound, dyeing and printing fixative, etc. |
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Packing, storage and transportation:
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Woven bag lined with plastic film, net weight 25kg. Storing in cool, ventilated and dry warehouse. During storage and transportation, pay attention to damp-proof and heat-proof. Far from toxic substance. Light loading to avoid package breaking. |
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Quality standard:
| No. |
Item |
Index(Industrial grade) |
| Premium grade |
First |
Qualified |
| 1 |
Appearance |
White or yellowish crystal |
| 2 |
Dodecahydrate trisodium phosphate (Na3PO4·12H2O),% = |
98.5 |
98.0 |
95.0 |
| 3 |
Helianthine alkalinity(calculated Na2O), |
16.5~19.0 |
16.0~19.0 |
15.5~19.0 |
| 4 |
Water insoluble,% = |
0.05 |
0.10 |
0.10 |
| 5 |
Sulphate(calculated SO42-),% = |
0.50 |
0.50 |
0.80 |
| 6 |
Chloride(calculated CL),% = |
0.30 |
0.40 |
0.50 |
| 7 |
Iron(Fe),% = |
0.10 |
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| 8 |
Arsenic(As),% = |
0.005 |
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