1. Molecular formula:Na₂SO3
2. Molecular weight:126.04
3. Property:CAS number: 7757-83-7

White crystals or powders; Odorless, easily soluble in water, extremely soluble in ethanol, almost insoluble in ether. White hexagonal prism shaped crystal, soluble in water (at 0 ° C
) 12.54g/100ml; 80° 283g/100ml water at ℃, with a maximum solubility of about 28% at 33.4 ℃, and the aqueous solution is alkaline. Slightly soluble in alcohol, insoluble in liquid chlorine and ammonia. It is easily oxidized to sodium sulfate in the air and decomposes into sodium sulfide at high temperatures. As a strong reducing agent, it reacts with sulfur dioxide to form sodium bisulfite, which then reacts with strong acid to form the corresponding salt

4. Purpose:

4.1 In the field of water treatment, sodium sulfite is used as a deoxidizer for boiler water and oilfield injection water< br /> 4.2 Used as an analytical reagent, often as a reducing agent. Used as a material for photoresistors and as a base solution for polarographic analysis. It is also used in the photography industry< br /> 4.3 Sodium sulfite is used in chemical production as a raw material for the production of sodium thiosulfate, a stabilizer for adhesive fibers, a reducing agent for fragrances, dyes, etc. It is also used in the synthesis process of intermediates; Used as a bleaching component and deoxidizer in the textile industry; Used as a sterilizing agent for beer bottles, a carving agent for glass mirrors and stone tablets; Used as a lignin removal agent in the paper industry; Used in the photosensitive industry as a developer, film protector, and anti fading agent; Used in the manufacturing of photoresistors in the electronics industry; There are also multiple uses in analytical chemistry< br /> 4.4 Anhydrous sodium sulfite is mainly used for the treatment of chromium wastewater and as a reducing agent in chemical silver leaching

5. Product Quality:

6. Product Features:

High purity, stable performance, good crystallization, luster, and good fluidity, suitable for high-end customers such as Japan and Europe

7. Packaging and Storage:

Anhydrous sodium sulfite is packaged in double-layer packaging, with food grade polyethylene plastic bags for meat packaging and plastic woven bags for outer packaging. Each bag weighs 25 kilograms, 50 kilograms, and 1000 kilograms. Printed on the outside of the packaging; Anhydrous sodium sulfite; Words and“ Moisture and heat resistance; The logo and trademark identification are:“ Sanxiang

Storage and protection: The warehouse for storing anhydrous sodium sulfite should be dry, cool, and prevent moisture and heat from deteriorating. The packaging should be kept intact, and it is strictly prohibited to store it together with oxidants, toxic substances, and harmful substances. The storage period should be two years from the date of production. Transportation vehicles must be clean and covered to prevent rainwater from getting wet