Sodium Sulfite -Na2so3, Used in Printing and Dyeing, Medicine, Papermaking

• Customization: Available
• CAS No.: 7757-83-7, 7757-83-7
• Certification: CIQ, ISO, SGS
• Model NO.: 97%, 98%
• Purity: 90%~99%
• Type: Sodium Sulphite
• Appearance: Powder
• Grade Standard: Industrial Grade
• Formula: Na2so3
• Transport Package: Plastic Bag, N. W. 50kg, 1000kg
• Specification: 96%, 97%
• Trademark: LY
• Origin: Tianjin
• HS Code: 28321000
• Production Capacity: 3000ton/Month

Product Description

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Description of Sodium Sulfite:
1.Purity: 97%,98% 
2.CAS no.: 7757-83-7 
3.MF: Na2SO3 
4.Appearance: White crytal powder
 
5.Usages:
(1) Industry Grade : Used in Dyeing and printing Industry , as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as anti-fermentative. In starch and sweeteners production as bacteriostatic.
(3) Photo Grade: In the photographic industry as component of developer bath.
(4) Pharmaceutical Grade: pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone.
 
6. Storage
Sodium sulfite should be stored in a dry and cool place.
 
7. Package
Sodium sulfite is packed in net weight 25kg plastic woven bag with plastic inner bag.
25tons/20'FCL.
 

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