1.it is hard to dissolve in ethanol 2.It is used to produce chloroform,solasulfone and Benzaldehyde in medical industry. Product Name:Sodium sulfite anhydrousCAS NO:7577-83-7Molecular Formula:Na2SO3SpecificationsItemGradeBest qualityFirst qualityQualifierSodium sulfite (Na2SO3) Assay, %≥ 97.0≥ 96.0≥ 93.0Fe, %≤ 0.003≤ 0.005≤ 0.02Insol. in water, %≤ 0.02≤ 0.03≤ 0.05Free alkali (Na2SO3) Assay, %≤ 0. ...