Talc powder is an industrial product, which belongs to the talc group of magnesium silicate minerals. Its main component is hydrated magnesium silicate, which is crushed, treated with hydrochloric acid, washed with water, and dried.

Commonly used as fillers for plastic and paper products, rubber fillers and anti sticking agents for rubber products, advanced paint coatings, etc.

characteristic:

It has excellent physical and chemical properties such as lubricity, fire resistance, acid resistance, insulation, high melting point, chemical inertness, good covering power, softness, good luster, strong adsorption power, etc. Due to the layered crystalline structure of talc, it has a tendency to easily split into scales and special lubricity.

Physical properties:

Appearance and texture: It is usually a white powder (which may appear light green, yellow, brown, etc. when containing impurities), with a soft texture (Mohs hardness 1-1.5), a smooth texture, and a pearl luster.

Solubility and melting point: Insoluble in water, with a melting point of up to approximately 1550 ° C.

Optical properties: high whiteness (over 93%), can block ultraviolet and infrared rays, suitable for sunscreen products.

Other characteristics: good electrical insulation, heat resistance and non thermal conductivity, strong adsorption force.

Chemical properties:

Stability: It does not react with acids or bases at room temperature, and can decompose into magnesium oxide and silicon dioxide at high temperatures.

Functional: pH 7-9, does not degrade other ingredients, suitable as a stable filler for cosmetics and papermaking.