Zinc Oxide for sale in Kenya .
Zinc oxide is a chemical compound of zinc and oxygen. In nature, zinc oxide occurs in the form of the coarse-grained mineral zincite (red zinc ore).
Properties of zinc oxide
Zinc oxide has the chemical formula ZnO. It forms colourless, hexagonal crystals and – due to the refraction of light in very small crystals – a loose, white powder.
Zinc oxide can be obtained by burning zinc. In the laboratory, zinc oxide can be produced by precipitation from zinc salt solutions. The resulting zinc carbonate or zinc hydroxide can be converted into zinc oxide by annealing.
In the industrial extraction of zinc oxide using the so-called “American process”, the zinc ores are roasted, reduced to zinc with coal and then immediately oxidised again. In the “French process”, pure zinc vapour is burnt with air; this produces the zinc white known as “painter’s pigment”. Depending on the area of application, zinc oxide can be produced in different qualities by varying the reaction conditions.
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