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1. Sodium hydrosulfite, oxalic acid and formic acid.
2. It is used as camouflage acid in chrome tanning process in leather industry.
3. Used as catalyst and stabilizer.
4. Reducing agent in printing and dyeing industry.
| Inspection items | Specifications | Specifications | Specifications |
| Content of sodium formateWT.%, ≥ | 92 MIN. | 95 MIN. | 98 MIN. |
| Organic impuritiesWT.%, ≤ | 8MAX. | 5MAX. | 2MAX. |
| Chloride contentWT.%, ≤ | 2 MAX. | 0.5MAX. | 0.5MAX. |
| HumidityWT.%,?≤ | 2 MAX. | 2 MAX. | 2 MAX. |
| Appearance | White crystalline powder | White crystalline powder | White crystalline powder |
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