Zinc salts: zinc chloride, -
sulphate, - carbonate, phosphate and zinc dimethyldithiocarbamate
[(CH2)NCSS]2Zn, have a preservative action
on animal hides and skins.
Zirconium tannage
Tannage with a basic salt of
tetravalent zirconium, such as zirconyl sulphate, Zr(OH)2SO4
or zirconyl chloride, ZrOCl2.8H2O.