96% Price CAS 7757-83-7sodium Sulfite Na2so3 Natrium Sulfite Anhydrous Crystal

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2so3
• Model NO.: JC-Na2SO3-W1
• EINECS: 231-821-4
• Certification: ISO, COA MSDS
• Purity: 90%~99%
• Type: Sodium Sulfate
• Appearance: Powder
• Grade Standard: Industrial Food Grade
• Color: White/ Light Yellow
• Fe: ≤0.005%
• as: ≤0.0001%
• Water Insoluble: ≤0.05%
• Heavy Metal(Pb): ≤0.0005%
• Solubility: Easy
• Expiration Date: 2 Years
• Bag Marks: Customizable
• Sample: Free
• MOQ: 20 Tons
• Transport Package: PP Lined with PE Bag
• Specification: 25kg/ 50kg/ 1000kg Bag
• Trademark: N/M
• Origin: China
• HS Code: 2832100000
• Production Capacity: 3000 Tons/Month

Product Description

Product Description

Industrial & Food Grade Sodium Sulfite

Sodium sulfite, with the chemical formula Na2SO3, is an inorganic compound and a sulfite of sodium. It is mainly used as a stabilizer for artificial fibers, a bleaching agent for fabrics, a photographic developer, a deoxidizer for dyeing and bleaching, a reducing agent for fragrances and dyes, and a lignin remover for papermaking, etc.

Physical properties

Density: 2.63g/cm ³

Refractive index: 1.484

Appearance: White crystalline powder

Solubility: Readily soluble in water, slightly soluble in ethanol. 

Specification

TEST ITEMS	TESTSTANDARD
	FIRST LEVEL	SECOND LEVEL
Na2SO3                     %	97	93
IRON(Fe)                    %	0.003	0.005
WATER INSOLUBLE  %	0.02	0.03
Na2CO3                      %	0.1	0.4
SULPHATES(SO4)     %	2.5	---
CHLORIDE(NaCl)       %	0.1	---

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