Sodium Hydrosulfite 90%min (China Manufacturer) - Detergent Chemicals - Chemical Waste Products

Sodium Hydrosulfite 90%min

Model:	-
Brand:	-
Origin:	Made In China
Category:	Chemicals / Chemical Waste / Detergent Chemicals
Label:	Sodium Hydrosulfite , Detergent industry , chemical materials
Price:	-
Min. Order:	21.6 mt

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Product Description

Product Name: Sodium Hydrosulfite
CAS No.: 7775-14-6
Molecular Weight: 174.108
Molecular Formula:Na2S2O4
Appearance: White Free-flow Crystal Powder

Specifications:

Index	90% GRADE	88% GRADE	85% GRADE	Food additive GRADE
Na2S2O4	≥90%	≥88%	≥85%	≥85%
Water insolubles	≤0.05%	≤0.05%	≤0.05%	/
Iron (Fe)	≤20ppm	≤20ppm	≤20ppm	≤20ppm
Appearance of Aqueous solution	Clear	Clear	Clear	clear
Zinc (Zn)	≤1ppm	≤1ppm	≤1ppm	≤1ppm
Arsenic(As)				≤1ppm
Other heavy metals (as Pb)	≤1ppm	≤1ppm	≤1ppm	≤1ppm
Format(as HCHO)	/	/	/	≤0.05%
Shelf life(months)	12	12	12	12

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 in dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

Usage:

vat dyeing, printing and stripping , reduction cleaning,
leaching textile materials such as silk, wool, nylon and other fibres
bleaching mechanical pulps ,thermo-mechanical pulps, deinked pulps
bleaching kaolin
bleaching foodstuffs like sugar, honey , gelatin etc .
reducing agent for organic synthesis and pharmaceuticals

Packing:
15kg,20kg,25kg,50kg,100kg,200kg iron drum with double inner polythene bags; 500kg ,1200kg,1800kg intermediate bulk container (IBC)