Heavy calcined zinc oxide is a zinc oxide product obtained by calcining light zinc oxide at high temperature. During the calcination process, zinc oxide undergoes lattice structure rearrangement and particle growth, resulting in higher density and larger grain size.

Heavy calcined zinc oxide has the following main characteristics:

High purity: The heavy calcination process can remove impurities in zinc oxide, so that the product has high purity.

High density: Compared with light zinc oxide, heavy calcined zinc oxide has a higher density, usually between 5.5-6.0 g/cm³.

Large grain size: Due to the growth of grains during calcination, heavy calcined zinc oxide has a large grain size, which is advantageous for some applications.

Good chemical stability: Heavy calcined zinc oxide has good chemical stability at room temperature and is not easy to react with other substances.

Application fields: heavy calcined zinc oxide is widely used in the following fields:

Rubber industry: As a rubber additive, it can improve the hardness, wear resistance and weather resistance of rubber.

Plastic industry: used as a plastic reinforcement to improve the strength and weather resistance of plastics.

Ceramic industry: Used as an additive for ceramic pigments and glazes, it can change the color and luster of ceramics.

Paint industry: As a component of paint pigments, it can provide color and hiding power.