Specification :

We provide the Sodium Hydrosulfite with high quality and competitive price. We can send you the sample of Sodium Hydrosulfite for free.
Product name: Sodium Hydrosulfite
Purity: 79% , 85% , 88% , 90% Appearance: White powder
Application:
1. At the textile industry as the powder of Sodium Hydrosulfite to restore and stunted sex and restore faded wool dye its, and additive used as silk to the dyeing skin color fixative and tank cleaning liquids, etc.
2. In the powder used as a pulp paper-making industry machinery oars, hot off the ground a mechanism.
3. In food industry insurance powder used as sugar, candies, sweets and biscuits.
4. The powder as widely used to restore fur bleaching and restore your whitening bamboo ware.
5. The powder in chemistry industry used to restore the reactants.
Specification 90% 88% 85%
Na2S2O4 e 90% e 88% e 85%
Fe d 20ppm d 20ppm d 20ppm
Zn d 1ppm d 1 ppm d 1ppm
Solution Appearance Clear Clear Clear
Other heavy metal ( as pb) — — —
HCHO — — —
Water insoluble matter d 0.05% d 0.05% d 0.05%
Reserve period ( months) 12 12 12