Traits: colorless, transparent crystal or white particles.
Weathering in dry air. Relative density 1.45, melting point 58℃, the loss of all 123℃in the crystallization of water, that is, decomposition of higher
temperature. Soluble in water, aqueous solution was basic. Uses: used as analytical reagent, such as the allocation of buffer
solution. Also used as a mordant and for fuel synthesis,
preparation of acetic anhydride