Na2s2o4 Food Grade Pure White Powder 85% 88% 90% Sodium Hydrosulfite

• Customization: Available
• CAS No.: 7775-14-6
• Formula: Na2o4s2
• Model NO.: Sodium Hydrosulfite
• EINECS: 231-890-0
• Certification: RoHS, ISO, SGS
• Purity: 85% 88% 90%
• Type: Sodium Hydrosulfite
• Appearance: Powder
• Usage: Textile/Medicine-Making/Papermaking
• Powder: 85% 88% 90%
• Melting Point: 300ºC
• Density: 2.3~2.4
• MW: 174.1071
• Transport Package: 50kgs Drum
• Trademark: Briiliant
• Origin: Henan
• Production Capacity: 100000mt

Product Description

Product Description

Sodium hydrosulfite, also known as sodium hydrosulfite, is a white sandy crystal or yellowish powder chemical. As sulfur is in the middle valence state, sodium dithionite has strong reducibility and strong oxidation.

Features:
1. Slight special odor. Sensitive to light.
2. In the presence of moisture or aqueous solution, sodium bisulfite and sodium bisulfate are quickly generated and become acidic.
3. It is easily soluble in water, slightly soluble in ethanol, and the aqueous solution is neutral. Easy to burn when wet. Due to its unstable nature, a certain amount of stabilizer is added to the finished product.

Product Parameters

 

INDEX	90%	88%	85%	74%
Na2S2O4	≥90%	≥88%	≥85%	≥74%
Fe	≤20ppm	≤20ppm	≤20ppm	≤30ppm
Zinc(Zn)	≤1ppm	≤1ppm	≤1ppm	≤1ppm
Other heavy metal (as Pb)	≤1ppm	≤1ppm	≤1ppm	≤1ppm
Water Insolubles	≤0.05%	≤0.05%	≤0.05%	≤0.05%
Shelf Life(month)	12	12	12	12

Application

It is widely used in reducing dyeing, reducing cleaning, bleaching, organic synthesis, wood pulp and paper making in the textile industry.

Packaging & Shipping

Package: 50KG Drum,21.6MT/20'FCL
It shall be stored in a cool, ventilated and dry warehouse. It shall be protected from moisture, direct sunlight, fire source, water or steam, oxidant or other flammable materials. After use, the mouth shall be tied, covered and kept properly.

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