1. Its exterior colorless or white have shining lump, or flake crystals, yi ke of white powder.

2. Odourless, slightly sweet mei, convergence.

3.The relative density (20 1.690 ℃).

4. Soluble in water, after dissolving hydrolysis and aqueous solution for show acidic.

5.200 ℃ lose gesso, 770 ℃ decomposition.

 

used for drinking water and industrial water treatment