Product Name: Sodium thiosulfate (Na2S2O3)
Property: Colorless transparent liquid, no odor, easily soluble in water, insoluble in alcohol.
Packing:25kg/50kg plastic woven bag.
Precautions: It should be kept in cool and dry warehouse, avoid sunlight exposure and rain during transportation. Separate from acids and oxidant. The container should be sealed to protect from damp.
Use: It can be used as detergent and disinfectant in pulp, food and pharmaceutical industries. It can also be used for reducing agent, deoxidier, blush preventive agent, detergent and disinfectant, etc.
| Item | Index | |
| Superior | First Class | |
| Sodium thiosulfate (Na2S2O3·5H2O) content, % ≥ | 99.0 | 98.0 |
| Water insoluble matter content% ≤ | 0.01 | 0.03 |
| Sulfide (in Na2S) content,%≤ | 0.001 | 0.003 |
| Iron (in Fe)content, %≤ | 0.002 | 0.003 |
| PH value(200g/l solution) | 6.5~9.5 | |
| No. | Item | Superior | First Class | For used in powder coating | ||
| 1 | Barium sulfate (in dry basis)%≥ | 98.0 | 98.0 | 98.0 | ||
| 2 | Water soluble matter %≤ | 0.20 | 0.25 | 0.18 | ||
| 3 | Oil absorption (g/100g) | 15-20 | 15-20 | 15-18 | ||
| 4 | Volatile matter (105℃)%≤ | 0.15 | 0.20 | 0.10 | ||
| 5 | PH value(100g/L suspension liquid)≤ | 6.5-9.0 | 6.5-9.0 | 6.5-9.0 | ||
| 6 | Whiteness % ≥ | 95.0 | 94.0 | 95.0 | ||
| 7 | Fineness (aperture 45um)%≥ | 0.10 | 0.20 | 0.06 | ||
| 8 | Iron content(Fe)%≤ | 0.003 | 0.004 | 0.002 | ||
| 9 | Size districution | Less than 10um≥ | 97.0 | 97 | 98.0 | |
| Less than 5um≥ | 96.0 | 96.0 | 97.0 | |||
| Less than 2um≥ | 80.0 | 75.0 | 80.0 | |||
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