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 Company standard Brief introduction
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| Industrial sodium sulfide |
National standard : GB/T 10500 -- 2000
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Item |
Value |
1 |
2 |
3 |
Premium |
First grade |
Salable product |
First grade |
Salable product |
sodium sulfide (Na2S) ≥ |
60.0 |
60.0 |
60.0 |
60.0 |
60.0 |
65.0 |
(Na2SO3) ≤ |
2.0 |
- |
- |
- |
- |
- |
(Na2S2O3) |
2.0 |
- |
- |
- |
- |
- |
(Fe) ≤ |
0.03 |
0.12 |
0.20 |
0.003 |
0.005 |
0.08 |
(Na2CO3) ≤ |
3.5 |
5.0 |
- |
2.0 |
3.0 |
4.0 |
Water insoluble matter ≤ |
0.20 |
0.40 |
0.80 |
0.05 |
0.1 |
0.3 |
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| Spec |
sodium sulfide (Na2S) |
≥ 60%(60% min) |
| Fe (Fe) |
≤ 0.15%(0.15% max) |
| Na2CO3(Na2CO3) |
≤ 5.0%(5.0% max) |
| Water insoluble matter (Water insoluble) |
≤ 0.40%(0.4% max) |
| Packing |
25kg plastic woven bag( flake , granular) |
| Uses |
Tannage, papermaking, mill run, pesticide, dye, chemical material |
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Industrial sodium sulfide can be 3 types in this standard :
1 , common sodium sulfide
2 , Sodium sulfide Containing low iron
3, high sodium sulfide |
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