china lithopone power factory

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Inorganic pigment Lide powder, also known as zinc antimony white, is a mixed crystal of zinc sulfide and barium sulfate. It has many unique and excellent properties. Lide powder products form a series of products, such as high ZnS type, apparent treatment type, water dispersion. Type, light fastness, color type, etc., play an important role in industrial and agricultural production and daily life. Mainly used in coatings, paints, thermoplastics, thermosets, paper, etc., can replace some rutile by surface treatment or Ti0 2 coating.

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Food containing titanium dioxide that is lawfully placed on the EU market before 7 August 2022 may remain on the market until its date of minimum durability or its ‘use-by’ date has passed. Food produced or placed on the market after 7 August 2022 cannot contain titanium dioxide. The ban on the use of titanium dioxide is effective in each EU Member State, and in Northern Ireland. Some third countries, such as the United Kingdom (excluding Northern Ireland), continue to permit the use of titanium dioxide.

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The refractive index, represented by the letter n, of a material describes how light propagates through and is bent by, that material. The magnitude of the refractive index, depending upon the electronic structure of the molecules, governs to what extent the path of light changes, when entering or leaving a material.

Particles in a matrix, like pigment particles surrounded by the binder system in a coating, ink or plastic, can change the propagation direction of light when the particles and the matrix have a different refractive index. This phenomenon, called scattering, results in both white color (provided that the particles do not absorb visible light) and the hiding power of the coating.

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