Descrição
SPECIFICATION |
STANDARD |
|||
Na2S2O4 |
90% |
88% |
85% |
74% |
Water insolubles |
0.05% max. |
0.05% max. |
0.05% max. |
0.05% max. |
Iron (Fe) |
20ppm max. |
20ppm max. |
20ppm max. |
20ppm max. |
Zinc (Zn) |
1ppm max. |
1ppm max. |
1ppm max. |
1ppm max. |
Other heavy metals (as Pb) |
1ppm max. |
1ppm max. |
1ppm max. |
1ppm max. |
Water Insolubles |
0.4% max. |
0.4% max. |
0.4% max. |
0.4% max. |
Chemical Name |
Sodium Hydrosulphite |
CAS Number |
7775-14-6 |
H.S. Code |
2831.1010 |
UN Number |
1384 |
EINECS No. |
231-890-0 |
Molecular Formula |
Na2S2O4 |
Appearance |
White Powder |
Packing |
50kg iron drums |
Loading Quantity |
25MT/20’FCL |
Application |
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile bleaching. 2. It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most suitable 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. |
Handling & Storage |
Stored in cool and dry warehouse |
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