NAME：Sodium Hyposulfite,Sodium Dithionite
H.S.Code：28311010.00
CAS Code：7775-14-6
MOLECULAR FORMULA：Na2S2O4
MOLECULAR WEIGHT：174.108
EXECUTIVE STANDARD：HG/T 2074-2004
Sodium Hyposulfite,Sodium Dithionite
H.S. Code:28311010.00
CAS Code:7775-14-6
APPEARANCE:White sand crystallization or light yellow powder
MOLECULAR FORMULA: Na2S2O4
Application：
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching. 2. It is also used in bleaching paper pulps , especially mechanical pulps, it is the most fittable bleaching agent in pulps. 3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. It is used in mineral, the compound of thiourea and other sulphides. 5. It is used as reducing agent in chemical industry. 6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar,rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
Package:25kg pp bag, 50kg/100kg net in iron drums with double PVC bags.
Item | Index | ||
90% | 88% | 85% | |
Na2S2O4 | ≥90% | ≥88% | ≥85% |
Fe | ≤20ppm | ≤20ppm | ≤20ppm |
Zn | ≤1ppm | ≤1ppm | ≤1ppm |
Other heavy metal as Pb | ≤1ppm | ≤1ppm | ≤1ppm |
Water Insoluble | ≤0.05% | ≤0.05% | ≤0.05% |
