Talc

Talc is mainly composed of talc and magnesium silicate, and its molecular formula is Mg3 [Si4O10] (OH) 2. The monoclinic system of the genus talcum. Crystal is false six square or rhombus flake, even see. They are usually dense, massive, leaf like, radial, fibrous aggregates. Colorless, transparent or white, but light green, light yellow, light brown or even light red due to a small amount of impurities, and a pearl luster on the cleavage surface. The hardness is 1, and the proportion is 2.7 to 2.8. The talcum has good physical and chemical properties such as lubricity, anti viscosity, flow aid, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good covering power, soft, glossy, and strong adsorption capacity. Because the crystalline structure of the talcum is layered, it has the tendency to split into scales and special slippery. Wettability, if Fe2O3 content is very high, will reduce its insulation.
Use:
(1) cosmetics grade (HZ): used in various moisturizing powder, beauty powder, talcum powder, etc.
(2) medicine - food grade (YS): pharmaceutical tablets, medicinal powder (such as Paracetamol Caffeine and Aspirinpowder) sugar coating, prickly heat powder and Chinese medicine prescription, food additives, isolation agents.
(3) coating grade (TL): used for white body pigment and all kinds of water-based, oil-based, resin industrial coatings, primers, protective paints, etc.
(4) paper grade (ZZ): filler for all kinds of paper and paperboard, wood asphalt control agent.
(5) plastic grade (SL): filler for polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene and polyester.
(6) rubber grade (AJ): used for tackling rubber filler and rubber products.
(7) cable grade (DL): used for cable rubber additive and cable separator.
(8) ceramic grade (TC): used in the manufacture of electric porcelain, wireless electric porcelain, various industrial ceramics, building ceramics, daily ceramics and porcelain glaze.
(9) waterproof material grade (FS): used for waterproofing membrane, waterproof coating, waterproof ointment and so on.
(10) fine talcum powder: used in advanced paint, plastic, cable rubber, cosmetics, copper coated paper, textile lubricants, etc.