SODIUM SULPHITE
formula: Na2SO3
Chemical function:
White crystal or powder; brilliant; triangle prism; Solution alkalescence, PH:9-9.5. When 33.4℃, max solubility is 28%. Will easy be oxidated to sodium sulfate exposed in air; will be decompounded to sulfuration and sodium sulfate in high temperature; When meet strong acid, it will be decompounded to related salt meanwhile emiting sulfur dioxide that is strong reducer; When meet SO2 create to sulfurous acid sodium. Consistency is 2.633（15.4℃）, refraction rate is 1.565, molecular weight is 126.04.
White crystal or powder; brilliant; triangle prism; Solution alkalescence, PH:9-9.5. When 33.4℃, max solubility is 28%. Will easy be oxidated to sodium sulfate exposed in air; will be decompounded to sulfuration and sodium sulfate in high temperature; When meet strong acid, it will be decompounded to related salt meanwhile emiting sulfur dioxide that is strong reducer; When meet SO2 create to sulfurous acid sodium. Consistency is 2.633（15.4℃）, refraction rate is 1.565, molecular weight is 126.04.