Used in dehydrator, condensating agent, wood preservative, textile sizing agent, weighting agent, battery, electroplate etc. White powder crystal, molecular weight 135.29, density 2.91g/cm2, melting point 283 °C, boiling point 732 °C, insipid, easy deliquescence, dissovable in water, acid water solution, dissolvable in methanol, ethanol, glycerol, acetone, aether and other organic solvents ...