Specification :

Product Name: Sodium Hydrosulphite

1. Identity:

Chemical name: Hyposulphurous acid natrium
General name: Sodium hydrosulphite

Molecular formula: Na2S2O4

2. Appearance:

white free-flow crystal powders

3. Usage:

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, itýýs 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.
4. Packing

15kg, 25kg ,50kg or 100kg net in iron drums with double inner polybags.

Load: 25MT/20FCL

ITEM
90%
88%
85%
FOOD ADDITIVE

Na2S2O4
91.00%
89.50%
86.60%
86.96%

Na2S2O5
6.39%
6.64%
6.82%
6.5 4%

Na2CO3
1.10%
2.50%
5.70%
5.58%

Na2S2O3
0.18%
0.20%
0.41%
0.38%

Na2SO3
0.22%
0.21%
0.32%
0.36%

Fe
14ppm
15ppm
16ppm
11ppm

Water Insolubles
0.05%
0.04%
0.04%
0.01%

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