Molecular Structure:

Product description:

English name:Sodium Sulfite
Molecular formula : Na₂SO₃
Technical index:

Appearance	White crystal powder
Content	≥96%
Iron	≤0.005%
Water insoluble substance	≤0.003%
Free alkali	≤0.40%

Physicochemical properties:White crystal or powder, crystal form, PH value: 9-9.5, the solubility is 28% at 33.4℃, the density is 2.633 (15.4℃), refractive index is 1.565, molecular weight is 126.04.
perform standard: As deoxidizer and the bleaching agent in printing industry, developer in photosensitive industry, reducing agent for m-phenylenediamine in organic industry, artificial fiber and stabilizer in textile, also used in papermaking, electron, water treatment, printing, medicine, papermaking, chemical fiber, photography and food_.