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Specifications

Classification: Sulphate
1.Type: Sodium Hydrosulfite
2.CAS No.: 7775-14-6
3.Other Names: Sodium hydrosulphite

Detailed Description

Sodium Hydrosulfite 90%used in Textile, dye, medicine,

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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%

Application:
1. Vat dyeing, printing and stripping, reduction cleaning
2. Textile materials(silk, wool, nylon and other fibers)bleaching
3. Pulp and paper brightening
4. Pulp deinking
5. Kaolin clay bleaching
6. Foodstuffs ( sugar, honey, gelatin, etc)bleaching
7. Chemical synthesizing