Chinese Name: Sodium sulfite

Chinese alias: sulfur oxide powder, sodium sulfite (anhydrous), sodium sulfite (crude), sodium sulfite (refined), sodium sulfite (crystal), sulfur powder, anhydrous sodium sulfite, sulfur and oxygen;

CAS: 7757-83-7

EINECS: 231-821-4

Molecular formula: Na2SO3

Molecular weight: 126.04

InChI: InChI=1/2Na.H2O3S/c;; 1-4 (2) 3/h; (H2,1,2,3) /q2*+1; /p-2

Molecular structure:

Density: 2.633

Water solubility: 23 g/100 mL (20 C)

Physical and chemical properties:

The character is colorless monoclinic crystal.

Relative density 1.561

Solubility is easy to dissolve in water, and its aqueous solution is alkaline; it is difficult to dissolve in ethanol.

Product use:

Used for artificial fiber stabilizer, fabric bleaching agent, photographic developer, dyed and bleaching deoxidizer, spice and dye reducing agent, paper lignin removal agent, etc.