Sodium dithionite
Chemical compound
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Sodium dithionite is a white crystalline powder with a sulfurous odor. Although it is stable in dry air, it decomposes in hot water and in acid solutions. Wikipedia
Formula: Na2S2O4
Molar mass: 174.107 g/mol
Solubility: slightly soluble in alcohol
Density: 2.38 g/cm³
Melting point: 52 °C (126 °F; 325 K)
Appearance: white to grayish crystalline powder; light-lemon colored flakes
Boiling point: Decomposes