Customization: | Available |
---|---|
CAS No.: | 7757-83-7 |
Formula: | Na2so3 |
Still deciding? Get samples of US$ 1/Ton
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
1.Appearance: White Powder
2.Purity: % 99min
3.PH :7-10 for Normal grade. PH:6-8 for viscose grade.
4.Properties: white fine crystal or powder,
easily soluble in water;absorb moisture; odorless, non-toxic.
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% |
Arsenic: | 2ppm max | 1.5ppm |
Package:25kgs pp bag
Stored in a cool, ventilated warehouse. Away from fire and heat. Acids, etc. should be kept separately, avoid
mixed reserve.
Usage:
widely used in bleaching, glass, paper making, tanning, metal smelting, surface treatment and filler industries.
It is aslo Used in chemical industry as material of manufaturing sodium sulphide,sodium silicate and other
chemical products.
1.Used as bleaching agent,preservative,loosening agent and antioxidant in food industry.It is also used in pharmaceutical synthesis and as a reducing agent in the production of dehydrated vegetables.
2.It used as dye reducing agent in the smelting of various cotton fabrics to improve the products' whiteness.the textile industry is used as a stabilizer for man-made fibers.
3.The paper industry is used as a lignin remover.
4.The electronics industry is used to manfacture photoresistors.
Used as a developer in photosensitive industry.
5.The water treatment industry is used for electroplating wastewater,drinking water trestment,etc.
6.Used as a reducing agent in the organic industry is in production to prevent the oxidation of semi-finished products during the reaction process.
7.Used to produce cellulose sulfite,sodium thiosulfate.
A. More than 12 years of export experience, and professionals provide 24-hour online services;
B. Good quality, guaranteed price, fast supply and large quantity;
C. Flexible and diverse settlement methods and timely delivery of goods and documents;
D. The outer packaging is wear-resistant and moisture-proof, and multiple packaging methods are optional;
E. Cooperate closely with shipping forwarders to ensure the safety of after-sales goods;
Q1: When will my order be shipped?
A: Within 10-15 working days after the payment.
Q2: Can i get some samples?
A: Yes, contact me to know more about sample
Q3: How to confirm the Product Quality before placing orders?
A: Every product is with professional COA. Please be sure about the quality.
If any doubt, sample is available to you to be tested before large quantity order.
Q4: How to start orders or make payments?
A: Payment by T/T, Western Union,Money Gram etc