Sodium hydrosulfite ,Widely used in the textile industry for vat dyeing, reduction cleaning, printing and stripping, textile mat
Sodium Hydrosulfite CAS NO:7775-14-6
H.S code:28311000
Content: 85% 88% 90%Grade:Industry grade and food additive grade
Specification:
Guidelines | 90% |
Na2S2O4 | ≥90% |
Fe | ≤20ppm |
Zinc (Zn) | ≤1ppm |
Other heavy metal (With Pb to calculate ) | ≤1ppm |
Matter which does not dissolve in water | ≤0.05% |
Storage time limit( month ) | 12 |
Usage:
(1) Used as reducer, dyes auxiliary of dyeing industry, synthetic dyes and intermediates.(2) Used as bleaching agent of paper pulp in paper-making industry. (3) Used as bleaching agent of china clay in the ceramics industry. (4) Used as deoxidizer of rubber and styrene butadiene rubber synthesis, developer in photo-taking industry.(5) Used as reducing agent, bleaching agent in the industries including pharmacy, food, metallurgy and leather
Package:
50 kg net in iron drums with double inner polybags. 21MT(420drums) in 20ft container.
Sodium hydrosulfite 90%
