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Home > Chemicals > Chemical Auxiliary & Catalyst > Chemical Auxiliary > Hydros 85%/Sodium Dithionite /Sodium Hydrosulfite 85/ Sodium Hydrosulphite 85%/88%/90%

Hydros 85%/Sodium Dithionite /Sodium Hydrosulfite 85/ Sodium Hydrosulphite 85%/88%/90%

Zhengzhou Mahaco Commercial Co., Ltd.

Hydros 85%/Sodium Dithionite /Sodium Hydrosulfite 85/ Sodium Hydrosulphite 85%/88%/90% photo-1

Negotiable MOQ: 22 Tons (Price negotiable depending on order volume and customization)

Key Specifications

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CAS No.:

7775-14-6

MF:

Na2S2O4

EINECS No.:

231-890-0

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TIANJIN

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CAS No. 7775-14-6

MF Na2S2O4

EINECS No. 231-890-0

Purity 85%min

Place of Origin Henan, China

Type Other, Reducing agent

Usage Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals

1. Specifications of Hydros 85% :

Item	90%	88%	85%	food grade
Na2S2 O4	≥ 90%	≥ 88%	≥ 85%	≥ 85%
(Fe)	≤ 20ppm	≤ 20ppm	≤ 20ppm	≤ 20ppm
(Zn)	≤ 1ppm	≤ 1ppm	≤ 1ppm	≤ 1ppm
Clarity	Clarify	Clarify	Clarify	Clarify
EDTA	-	-	-	Qualified
(As)	-	-	-	≤ 1ppm
Other heavy metals(pb)	-	-	-	≤ 1ppm
HCHO	-	-	-	≤ 0.05%
water insoluble matter	≤ 0.05%	≤ 0.05%	≤ 0.05%	-

2. Characteristics of Sodium Hydrosulphite :

1)Appearance white free-flowing crystal powder

2)Smell:flavourless or smell of sulfur dioxide

3. Uses of Sodium Hydrosulphite:

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.
3It 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.