FOB Price
Get Latest Price600 ~ 650 / Metric Ton ( Negotiable )
|Minimum Order
Place of Origin:
TIANJIN
Price for Minimum Order:
Minimum Order Quantity:
21 Metric Ton
Packaging Detail:
50KG IRON DRUM
Delivery Time:
within 14days after received advanced payment
Supplying Ability:
3000 Metric Ton per Month
Payment Type:
Western Union, L/C, T/T
連絡先担当者 Ms. bella
Haihe industry, Tianjin, Tianjin
Product:Sodium Hydrosulphite /Sodium Dithionite/Sodium Hydrosulfite
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Appearance: White Free-flow Crystal Powder
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Useage: widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping etc.
Specifications:
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|
Items |
Index |
|||
|
Tech Grade |
Food Grade |
|||
|
Na2S2O4, % ≥ |
*5 |
*8 |
*0 |
*5 |
|
Fe, ppm ≤ |
*0 |
*0 |
*0 |
**- |
|
Zn, ppm ≤ |
1 |
1 |
1 |
1 |
|
As, ppm ≤ |
**- |
**- |
**- |
1 |
|
Heavy Metal(as Pb), ppm ≤ |
**- |
**- |
**- |
1 |
|
Water Insolubles, % ≤ |
0.4 |
0.4 |
0.*5 |
0.*5 |
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Package: *0kg iron drums with double inner polybags.Â
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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’s 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.
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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.
