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Hongkong Baijin International Trading Co., Ltd.

Sodium hydrosulfite, sodium hydrosulfite 85, sodium hydrosulfite 88 manufacturer / supplier in China, offering Industry grade, white powder Na2O4S2 90%88%85% sodium hydrosulfite, Industrial Grade Building Primer Coatings 95% Styrene Monomer, Food processing auxiliaries 99.5% Succinic anhydride for medicine, pesticide, ester and so on.

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Supplier Homepage Product organic chemicals series Industry grade, white powder Na2O4S2 90%88%85% sodium hydrosulfite

Industry grade, white powder Na2O4S2 90%88%85% sodium hydrosulfite

Purchase Qty.:
20-49 50+
FOB Unit Price: US $880 US $850
Purchase Qty. (Tons) FOB Unit Price
20-49 US $880
50+ US $850
Get Latest Price
Port: Qingdao, China
Production Capacity: 1000 Metric Ton / Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Industry Grade
  • Appearance: Powder
  • Colour: White
  • CAS No: 7775-14-6
  • MF: Na2O4S2 (Sodium Dithionite)
  • Trademark: XC
  • Specification: SGS
  • HS Code: 2831105000
  • Type: Dyestuff Intermediates
  • Quality: Industrial
  • Chemical Name: sodium hydrosulfite
  • EINECS No.: 231-890-0
  • Stability: Stable under ordinary conditions (Decomposes in h
  • Transport Package: 50kg/drum
  • Origin: China (Mainland)
Product Description
 General Description of Sodium Hydrosulfite:
Sodium Hydrosulfite is a white powder. Commercial sodium hydrosulfite contains 85% - 90% sodium dithionite w/w. It is readily soluble in water and shows powerful reducing action in aqueous solutions. Sodium hydrosulfite is used as a reducing agent in dying application. It undergoes reduction reaction with water-insoluble vat dye and sulfur dye to form water-soluble alkali metal salt of the dye (leuco form ) so that they have affinity for the textile fiber.
 Specification of Sodium Hydrosulfite:
 Sodium Hydrosulphite 74% 85% 88% 90%
Water insoluble0.3   max0.3  max0.1  max0.1   max
Sodium thiosulfate: Na2S2O31.4   max1.5  max1.3    max1.0  max
Sodium metabisulfite: Na2S2O5  5-75-75-75-7
Sodium bisulfite:NaHSO3  0.5  max0.5  max0.5 max0.5  max
Sodium carbonate: Na2CO3  0.6-2 max0.6-2 max0.6-2 max0.6-2  max
Sodium formate: HCOONa  0.5  max0.8 max0.5  max0.5  max
 Pic show of the Sodium Hydrosulfite:

Application of Sodium Hydrosulfite
1) It is for vat dyes staining the reducing agent, reducing hair bleaching agents, vat dyes printing auxiliaries, silk scouring and bleaching agent, dyeing agents and objects of the peel color dye vat cleaning agent in the textile industry.
2,) It is used as a mechanical pulp, mechanical pulp mill hot and deinking pulp bleaching agent in pulp and paper industry.
3)  It is used as sugar, candy, candied fruit, caramel, cookies, fans, etc. Bleach and food preservation agent in the food industry.
4) As a bleaching agent is widely used to restore the kaolin bleaching; Fur whitening bleaching and restore; Bamboo products and straw products such as bleach.
5) It is used as a reducing agent in chemical industry.
Packing details: 50kg/drum, or 25kg/bag, as required 
Delivery: Within15 working days after receiving the deposit 

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