sodium sulfite
we are real manufacturer of sodium sulphite and can grant good quality and factory price.
Sodium sulfite is white crystal or crystalline powder, it's alkali in water, pH is 9. Application: Sodium sulfite is white crystal or crystalline powder, Mainly used in medicine, paper making, tannage, leather, printing, dyeing, bleaching and food,waste water treatment, reducing and sulphonating agent for chemical synthesis ,bleaching agent for textiles,colors stripper and deoxidization ,floating agent for mining industry,auxiliary chemical in tanning process.
product specification:
| Item | super | first | qualified |
| Purity (na2co3) | 97.0%min. | 96% min. | 93.0%min. |
| Fe | 0.003%max. | 0.005%max. | 0.01%max. |
| Water insolubles | 0.02%max. | 0.03% max. | 0.05%max. |
| Free alkal | 0.10%max. | 0.40% max. | 0.60%max. |
sodium sulfite
