Bulletin of the Chemical Society of Japan.
The orthorhombic form Ξ΄ rapidly changes to one of the other forms on exposure to the atmosphere.
Zinc chloride is one of them.
Cellulose dissolves in aqueous solutions of ZnCl 2, and zinc-cellulose complexes have been detected.
The purification of anhydrous zinc chloride can be done through sublimation with hydrogen chloride gas, followed by the subsequent heating of the sublimate to around 400 Β°C with dry nitrogen gas.
It is capable of removing salts and oxides from surfaces of various metals.