Zinc oxide (ZnO), commonly known as zinc white, is a kind of oxide
of zinc, which is insoluble in water but soluble in acid and
alkali. Zinc oxide(indirect method) is the use of zinc ingots as
raw materials, which is conversed to zinc vapor in graphite
crucible at ***0 ° C, then zinc vapor is oxidized by bubbling air
and through the cooling tube, zinc oxide particles are collected.
The product purity varies with the raw material of zinc ingots.
Except zinc ingots, zinc slag is another kind of raw material. Good
technology and pure zinc ingots can make the product purity reach
more than *9.8%.