CAS 7757-83-7 Na2so3 Solid Powder High Content Use in Textile Sodium Sulphite

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2so3
• Model NO.: JC-Na2so3-031402
• EINECS: 231-821-4
• Certification: ISO
• Purity: 90%~99%
• Type: Sodium Sulfate
• Appearance: Powder
• Grade Standard: Industrial Grade
• Melting Point: 500 °c
• Density: 2.63
• Storage Conditions: Store at +5°c to +30°c.
• Form: Solid
• Color: White to Slightly Yellow
• pH: 9.0-10.5
• Shipping Fee: Base on Address
• Sample: 500g Free
• Odor: No
• Packaging: Can Be Customized
• Transport Package: 25kg, 50kg, 1000kg
• Specification: Customizabl /PP Bag
• Trademark: N/M
• Origin: China
• HS Code: 2832100000
• Production Capacity: 36000mt Per Month

Product Description

 

Product Description

Chemical Information

Chemical Name: Sodium Sulfite Anhydrous

Molecular Formula: Na2SO3

Molecular Weight: 126.04 g/mol

CAS Number: 7757-83-7

Appearance: White crystalline powder or granules

Solubility: Easily soluble in water, slightly soluble in alcohol

pH (10% Solution): 9 - 10.5

Key Properties

Strong Reducing Agent: Effectively removes oxygen and prevents oxidation.

Stability: Stable under dry conditions; decomposes upon exposure to moisture, air, or acids, releasing.

Hygroscopicity: Absorbs moisture when exposed to air, gradually converting into (NaHSO3).

Non-Combustible: 

 

Product Parameters

 

PO NO.	JC-6003	PRODUCTION DATE	2024-12	EXPIRY DATE	2026-12
PACKING	25KG BAG	GRADE	INDUSTRIALGRADE	STANDARD	HG/T 2967-2010
TEST ITEMS		TEST STANDARD		TEST RESULT
Na2SO3		≥97.0%		98.10%
IRON(Fe)		≤0.003%		0.0015%
WATER INSOLUBLE		≤0.02%		0.01%
Na2CO3		≤0.10%		0.10%
SULPHATES(SO4)		≤2.5%		1.0%
CHLORIDE(NaCl)		≤0.10%		0.10%
CLEARNESS		THROUGH EXPERIMENTS
APPEARANCE		WHITE CRYSTALLINE POWDER
CONCLUSION		SUPERIOR PRODUCTS
INSPECTOR: ZHAGLI           CHECKER:GAOXIANG

 

Certifications

 

Packaging & Shipping

 

Packaging: Usually packaged in woven bags lined with plastic bags or kraft paper bags, with a net weight of 25kg, 50kg, etc. per bag. There are also other packaging forms such as bulk according to customer needs.
Storage conditions: It should be stored in a cool, dry, well ventilated warehouse, away from sources of fire and heat, and protected from direct sunlight. The packaging must be sealed to prevent moisture absorption and spoilage.

 

 

 

Factory overview

 

Customer Visit

 

 

FAQ

Q:. May I get some samples?
A: Free sample can be sent on your request but express charges are on your account.

Q: Is this price on the page correct?
A: The listed price is only for reference, for latest price, please contact us directly.

Q:What is your delivery time?
A: 7-10 working days normally and it depends on your quantity and our stock.
 

Q: What is your payment term?

A: 100% L/C at sight,  T/T in advance.

Q: Where is your loading port?
A: Tianjin Qingdao, Shanghai, other China main ports.
 

Q: May I visit your factory?

A: Welcome to visit our factory at your convenience.

 

Our team