Henan Allrich Chemical Co., Ltd.
Main products:caustic soda pearls,sulphur black,SHMP,pentaerythritol,titanium Dioxide
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  • Contact Person : Ms. Jin Danni
  • Company Name : Henan Allrich Chemical Co., Ltd.
  • Tel : 0086-0371-66396560
  • Fax : 0086-0371-86082812
  • Address : Henan,zhengzhou,NO27th,Floor 8th,Until1,Building20th ,South of Nancang street ,East of RoadZijing Shan ,Guancheng District ,Zhengzhou City
  • Country/Region : China

(factory direct) Sodium hydrosulphite 7775-14-6

(factory direct) Sodium hydrosulphite 7775-14-6
Product Detailed
Sodium hydrosulphite 1.Factory supply 2.for paper and textile making 3.free sample to test 4.25KG/PP BAG

                                      Sodium hydrosulphite 7775-14-6

1.Characters:

Formula: Na2S2O4

Molecular Weight: 174.11

Description: White Free-flow Crystal Powder

 

2.Specification:

INDEX

90%

88%

85%

FOOD ADDITIVE

Na2S2O4

≥90%

≥88%

≥85%

≥85%

Fe

≤20ppm

≤20ppm

≤20ppm

≤20ppm

Zinc(Zn)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

Other heavy metal

(calculated as Pb)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

Water Insolubles

≤0.05%

≤0.05%

≤0.05%

≤0.05%

Shelf Life(month)

12

12

12

12

 

3.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.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.Package: 50kg iron drums with double inner polybags.

(factory direct) Sodium hydrosulphite 7775-14-6



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