Sodium Sulfite Food Grade High Purity

• CAS No.: 7757-83-7
• Formula: Na2so3
• EINECS: 231-821-4
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: 90%~99%
• Type: Sodium Sulfate
• Appearance: Powder
• Grade Standard: Food Grade
• Molecular Weight: 126.043
• Density: 2.63G/Cm³
• Application: Mainly Used as a Stabilizer for Artificial Fibers,
• Transport Package: 25kg, 50kg, 500kg, 1000kg PP Bags
• Trademark: YY
• Origin: China
• HS Code: 2832100000
• Production Capacity: 25000mt/Year

Product Description

1.Product Description
Sodium sulfite is an inorganic substance with the chemical formula Na2SO3. It is a sulfite of sodium and is mainly used as a stabilizer for artificial fibers, fabric bleach, photographic developer, dyeing and bleaching deoxidizer, spice and dye reducing agent, and lignin remover for papermaking.

Molecular formula:Na2SO3 Molecular weight:126.043 Density: 2.63g/cm3 Appearance: white crystalline powder Solubility: easily soluble in water, insoluble in ethanol.

2.Product Certifications

 Sodium sulfite food grade

ITEM	SPECIFICATION	TEST RESULT
Na2SO3 content	98.0 %min	98.30%
Sodium sulphate	1.5%max	1.0%
Sodium chloride (NaCL)	0.1%max	0.08%
Iron (Fe)	0.003%max	0.0015%
Water insoluble	0.05%max	0.02%
Heavy metal as Pb	10PPM MAX	5PPM
Free alkali (as Na2CO3)	0.30%max	0.24%

Used for trace analysis and determination of tellurium and niobium, as well as preparation of developer solutions, and also as a reducing agent; The printing and dyeing industry, as a deoxidizer and bleach, is used for the cooking of various cotton fabrics, which can prevent local oxidation of cotton fibers and affect fiber strength, and improve the whiteness of the cooked fabric.

Reducing bleach has a bleaching effect on food and a strong inhibitory effect on oxidase in plant-based foods. According to Chinese regulations, it can be used for preserves with a maximum usage of 2.0g/kg.

3.Packing and Shipping
25kg, 50kg, 500kg and 1000kg pp bags or customized based on the client's request.
It can load 25MT if with pallets, can load 27MT max without pallets per container.

Delivery time: Around 10-14days after confirmed all the issues with the customer.

4.Application
1. Used for trace analysis and determination of tellurium and niobium, as well as preparation of developer solutions, and also as a reducing agent;
2. Used as a stabilizer for artificial fibers, fabric bleach, photographic developer, dyeing and bleaching deoxidizer, flavoring and dye reducing agent, papermaking lignin remover, etc;
3. Used as a common analytical reagent and photosensitive resistor material;
4. Reducing bleach has a bleaching effect on food and a strong inhibitory effect on oxidase in plant-based foods. According to Chinese regulations, it can be used for preserves with a maximum usage of 2.0g/kg; It can also be used for glucose, liquid glucose, sugar, rock sugar, malt sugar, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, blackcurrant concentrate, with a maximum usage of 0.60g/kg. The residual amount (calculated as SO2) of bamboo shoots, mushrooms, canned mushrooms, preserved fruits, grapes, and concentrated black currant juice is ≤ 0.05g/kg; 
5. The printing and dyeing industry, as a deoxidizer and bleach, is used for the cooking of various cotton fabrics, which can prevent local oxidation of cotton fibers and affect fiber strength, and improve the whiteness of the cooked fabric. The photosensitive industry is used as a developer. Organic industry is used as a reducing agent in the production of meta phenylenediamine, 2,5-dichloropyrazolone, anthraquinone 1-sulfonic acid, 1-aminoanthraquinone etc., which can prevent the oxidation of semi-finished products during the reaction process. Used as a lignin removal agent in the papermaking industry. The textile industry is used as a stabilizer for artificial fibers. The electronic industry is used to manufacture photoresistors. The water treatment industry is used for the treatment of electroplating wastewater and drinking water;
6. Used in the food industry as bleaching agents, preservatives, loosening agents, and antioxidants. Also used in pharmaceutical synthesis and as a reducing agent in the production of dehydrated vegetables;
7. Used in the production of cellulose sulfite esters, sodium thiosulfate, organic chemicals, bleached fabrics, etc., as well as reducing agents, preservatives, dechlorinating agents, etc;

5.Company Profile
Shandong Yuyuan Group Co.,Ltd is a group corporation established on 1986, located in Weifang City, Shandong province, China. Having over 13 factories in local province and all China. We always adhere to the principle of quality first. Cerating win to win situation for the customers.

6.Contacts:
Shandong Yuyuan Group Co.,Ltd
Miss. Catrina(Import and Export Manager)