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    Home > Coatings News > Paints and Coatings Market > Coating classification: talcum powder

    Coating classification: talcum powder

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: Introduction: Talcum powder is white or almost white, fine and sand-free powder with greasy feeling Odorless, tasteless Talc powder is insoluble in water, dilute mineral acid or dilute hydroxide alkali solution, and is widely used The main component of talc is magnesium silicate with water content of talc, and its molecular formula is mg3 [si4o10] (OH) 2 Talc belongs to monoclinic system The crystal is pseudohexagonal or rhombic, occasionally seen They are usually compact, massive, leaflike, radial and fibrous aggregates It is colorless, transparent or white, but it appears light green, light yellow, light brown or even light red due to a small amount of impurities; Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of paint news: Introduction: talcum powder is white or similar white, fine, no sand powder, with greasy touch Odorless, tasteless Talc powder is insoluble in water, dilute mineral acid or dilute hydroxide alkali solution, and is widely used The main component of talc is magnesium silicate with water content of talc, and its molecular formula is mg3 [si4o10] (OH) 2 Talc belongs to monoclinic system The crystal is pseudohexagonal or rhombic, occasionally seen They are usually compact, massive, leaflike, radial and fibrous aggregates It is colorless, transparent or white, but it is light green, yellow, brown or even light red due to a small amount of impurities; the cleavage surface is pearl luster Hardness 1, specific gravity 2.7-2.8 Talc has excellent physical and chemical properties such as lubricity, viscosity resistance, flow aiding, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good covering power, softness, good luster, strong adsorption, etc because the crystal structure of talc is layered, it has the tendency to split into scales and special lubricity If the content of Fe2O3 is very high, it will reduce it Insulation Classification and variety: talc powder can be divided into two types: ground talc powder and fine talc powder according to the size of its grinding particle size The ground talcum powder is divided into 9 varieties according to different industrial uses, as shown in Table 1 According to the physical and chemical properties, each variety of talcum powder can be divided into three quality grades: superior product, first-class product and qualified product Technical requirements for coating grade talcum powder: industrial production: select excellent talcum from the talcum (raw material of talcum powder) and directly crush it with Raymond mill or other high-pressure mill, and directly pack it with woven bag (50 kg or 25 kg specification woven bag) and then sell the finished product Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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