High Quality Sodium Sulphite Anhydrous Na2so3 Sodium Sulfite Anhydrous

• CAS No.: 7757-83-7
• Formula: Na2so3
• EINECS: 231-821-4
• Purity: 90%~99%
• Type: Sodium Sulfate
• Appearance: Powder
• Model NO.: CZ-Sodium Sulphite
• Grade Standard: Industrial Grade
• Transport Package: 25kg/Bag
• Trademark: CZ
• Origin: China
• Production Capacity: 20000mt/Year

Product Description

Product Description

Sodium sulfite is commonly known as sulfur oxide powder, there are two kinds of sodium sulfite and sodium sulfite heptahydrate. Anhydrous sodium sulfite is white powder; Sodium sulfite heptahydrate is colorless or slightly yellow crystal, easily soluble in water, the aqueous solution is alkaline, easy to weather in the air and be oxidized to sodium sulfate. Sodium sulfite is widely used in industrial and civil fields. It is one of the important pulping methods in the paper industry to cook plant fiber with sodium sulfite cooking solution at a certain temperature and pressure, and the paper industry is also the industry that consumes the most sodium sulfite products. Sodium sulfite is widely used to remove dissolved oxygen from water because of its low price, convenient source and fast reaction rate with oxygen. Sodium sulfite is used for leather treatment, can make leather soft, full, tough, waterproof, anti-folding, wear and other properties. Sodium sulfite is a widely used food additive permitted by the state, which can be used as bleach, preservative, loose agent, antioxidant, color protection and fresh-keeping agent for food processing. Sodium sulfite is an inhibitor of polyphenol oxidase (PPO) activity, which can effectively protect the Browning of fruits and vegetables.

ITEM	SPECIFICATION	TEST RESULT
Na2SO3 content :	97.0 %min	97.56%
Sodium sulphate :	2.5%max	1.30%
Sodium chloride (NaCL):	0.1%max	0.08%
Iron (Fe) :	30ppm max	15ppm
Water insoluble :	0.02%max	0.02%
HEAVY METAL AS PB	10ppm max	5ppm
Free alkali (as Na2CO3) :	0.10%max	0.08%

 

Detailed Photos

Application

1. Printing and dyeing industry as deoxidizer and bleaching agent.

2. Water treatment industry for electroplating wastewater, drinking water treatment.

3. Used in the textile industry as a stabilizer for man-made fibre.

4. The food industry uses it as a bleaching agent, preservative, loosening agent, antioxidant.

Packaging & Shipping

FAQ

Q: Do you provide samples ? Is it free or extra?
A: Yes, we could offer 200 g free sample for each grade. More than 1kg, we provide free samples, but the freight will be afford by clients.

Q: How long is your delivery time?
A: Generally it is 3-5 days if the goods are in stock. For big orders 50-200 tons, we could delivery within 20 days.

Q: How about OEM branding and packing?
A: Blank bag, Neutral bag available, OEM bag also available.

Q: .Can I get sample before order?
 A: Yes,we can provide free sample once price is agreed,and you have to pay us delivery fee in advance.

Q: How to ensure stable quality?
A: (1) All production process is automatic controlled by DSC system, no manual operation, so the quality of different batches are consitent.
(2) We test the sample before sending to you, and delivery goods at same quality for normal orders.
(3) Our QC and Lab will test all the raw materials purchased, test all finished products before delivery.