| CAS No.: | 7757-83-7 |
|---|---|
| Formula: | Na2o3s |
| EINECS: | 231-821-4 |
| Certification: | ISO |
| Purity: | ≥99% |
| Type: | Sodium Sulfite |
| Samples: |
|---|
| Customization: |
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Audited Supplier Sodium sulfite is an inorganic compound. It is a white granular powder at room temperature, has a sulfur dioxide odor, is stable when dry, and is sensitive to humidity. Soluble in water and glycerin, insoluble in ethanol, the aqueous solution is alkaline, the aqueous solution is alkaline to litmus paper and phenolphthalein, and the reaction with acid produces toxic sulfur dioxide gas, the pH of 1% aqueous solution is 8.3~9.4, and has strong reducibility.
| Item | Specifications | Results | ||
| Superior |
First grade | Qualified |
||
| SODIUM SULPHITE(Na2SO3),%≥ | 97 | 96 | 93 | 98.10 |
| Fe,%≤ | 0.003 | 0.005 | 0.01 | 0.001 |
| water insoluble matte,%≤ | 0.02 | 0.03 | 0.05 | 0.01 |
| Free alkali (Na2CO3) ≤ | 0.1 | 0.4 | 0.6 | 0.1 |
| Sodium sulfate (Na2SO4)≤ | 2.5 | - | - | 2.0 |
| Chloride(Nacl) ,%≤ | 0.10 | 1.0 | - | 0.1 |
1. Used for trace analysis and determination of tellurium and niobium and preparation of developer, and also used as reducing agent;
2. Used for artificial fiber stabilizer, fabric bleaching agent, photographic developer, dye bleaching deoxidizer, fragrance and dye reducing agent, lignin removal agent for papermaking, etc.
3. Used as ordinary analytical reagents and photoresistance materials;
4. Reductive bleaching agent, which has bleaching effect on food and strong inhibition of oxidase in plant food.
5. Printing and dyeing industry as a deoxidizer and bleach agent, used in the cooking of various cotton fabrics, can prevent the local oxidation of cotton fibers and affect the fiber strength, and improve the whiteness of the cooking material. Used as a developer in the photographic industry. Used in the textile industry as a stabilizer for artificial fibers. The electronics industry is used to make photoresistors. Water treatment industry for electroplating wastewater, drinking water treatment;
6. Food industry used as bleach, preservative, loosening agent, antioxidant. Also used in synthesis, as a reducing agent in the production of dehydrated vegetables;
7. Used for making cellulose sulfite ester, sodium thiosulfate, organic chemistry, bleaching fabrics, etc., and also used as reducing agent, preservative, dechlorination agent, etc.;
8. The laboratory is used to prepare sulfur dioxide
Packaging Details:25kg/bag or according to your request
Delivery Time:around 13 working days after receiving the deposit.
Port: Qingdao/Shanghai
Shandong Baovi Energy Technology Co., LTD. , located in Jinan City, Shandong Province, was founded in 2003, and it is a raw material supplier for the global organic chemical industry.The Company also participates in the production of small quantity of high value-added chemicals and intermediates.
Q1: what are your main products?
Our Products include solvents, antifreeze, anticorrosion, pigment, chemicals intermediates, etc. Widely used in agriculture,food sanitation and other fields.
Q2: Do you offer free samples?
A:Of course. We are always willing to offer free samples for our new clients.
Q3: Is there a Discount?
A.: Different quantity has different discount.
Q4:what is your payment?
For small order,you can pay by T/T,Western Union or Paypal, normal order by T/T to our company account.
1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T and Paypal, Western Union are the most usual ways we are using.
Any questions and some other chemicals, please feel free contact EVA!
Thank you so much!
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