N₂O₆Zn; mol wt 189.42.

Properties

Colorless, odorless crystals; d 2.065; mp ≈36°. Sol in about 0.5 part water, freely in alcohol. The aq soln is acid to litmus; pH of 5% aq soln 5.1. Keep well closed and in a cool place. Also available in the form of fused pieces. In this form it contains only about 20% water. Technical flake usually contains 25.6% H₂O.