Reducing Agent Sodium Sulfite for Bleaching Agents CAS 7757-83-7

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2o3s
• EINECS: 231-821-4
• Type: Other
• Transport Package: Drum
• Specification: 25kg
• Trademark: Future Chemical
• Origin: China
• HS Code: 2832100000

Product Description

Sodium sulfite
CAS NO. 7757-83-7
MF:Na2O3S
MW:126.04
1.Performance and use:
Sodium sulfite anhydrous can be used for man-made fibre stabilizer, fabric bleaching agent, photographic developer, dyeing and bleaching deoxidizer, spices and dyes reducing agent, papermaking lignin removal agent, etc.: in the printing and dyeing industry can be used as a deoxidizer and bleaching agent, used in all kinds of cotton fabric boiling, can prevent the cotton fibre local oxidation and affect the strength of the fibre and improve the whiteness of boiled and refined products. It can also be used to make cellulose sulfite ester, sodium thiosulphate, organic chemicals, bleaching fabrics, etc. It is also used as a reducing agent, antiseptic, dechlorinating agent, etc. It can be used as a deoxidising agent and bleaching agent in various cotton fabrics. It is used for the microanalysis and determination of tellurium and niobium and the preparation of developer, also used as a reducing agent, and used as a developer in the photographic industry. 

2.Technical indicators

Item	Quality Index
	Industry Grade	Food Grade
Purity ( As Na2SO3)	96.0% min	98.0% min
Sodium sulphate ( SO4)	2.0% max	1.2% max
Chlorides ( As NaCL)	0.5% max	0.08% max
Arsenic ( As )	-	0.0002% max
Heavy metals ( As Pb )	-	0.0005% max
Iron (Fe)	0.005% max	0.003% max
Water insoluble	0.05% max	0.01% max

 

 

3.Packaging and storage

 25kg /bag Cold storage, Ventilation, Drying
4.Safety protection
If inhaled, remove patient to fresh air. If breathing stops, administer artificial respiration.
Skin contact Flush with soap and plenty of water.
EYE CONTACT Use caution and flush eyes with water.