Surprise! There are five levels of talcum powder! How much do you know?
The main component of talcum is magnesium silicate containing water, and talc belongs to monoclinic system. Crystals of talcum rarely appear as pseudo hexagonal or rhombic sheets. It usually forms a dense massive, leafy, radial and fibrous aggregate. The color of talcum powder is colorless, transparent or white, while due to impurities, talc also shows light green, light yellow, light brown or even light red colors. The talcum powder has excellent gloss looks like pearl, it’s hardness is 1, and specific weight of talc is around 2.7-2.8.
The grade of talcum powder can be divided into five types:
1. Industry grade talcum powder
Application field: Rubber, Plastic, Paint
Characteristic: industry grade talcum powder can increase the stability of the shape of products, enhance tension, shear, bending and pressure strength, reduce the deformation, reduce deformation and spread rate and thermal expansion coefficient. Besides, talcum powder is also characteristed by high whiteness, uniform particle size and good dispersion, etc.
2. Cosmetic grade talcum powder
Application field: It used as a filler in cosmetics industry.
Characteristic: the talcum powder contains a lot of silicon. It has the effect of blocking infrared rays, so that improving the sunscreen and anti-infrared properties of cosmetics.
3. Ceramic grade talcum powder
Application field: ceramic grade talcum powder often used in making high-frequency porcelain, wireless porcelain, industrial ceramics, building ceramics, daily ceramics and ceramic glaze.
Characteristic: ceramic grade talcum powder does not change color at high temperature, it will become more white after calcination, it’s density is uniform, and has nice luster and smooth appearance.
4. Medicinal and edible grade talcum powder
Application field: medicinal and edible grade talcum powder is used as additive in pharmaceutical and food industries.
Characteristic: medicinal and edible grade talcum powder is featured by non-toxic, tasteless, high whiteness, good compatibility, strong glossiness, soft taste and strong smoothness. It’s PH value is between 7-9, which will not influence the characteristics of the original product.
5. Paper-Making grade talcum powder
Application field: it can used in all grades of paper industry products.
Characteristic: Paper-Making grade talcum powder has high whiteness, stable particle size and low abrasion. The paper made with this talcum powder can make the paper smooth, delicate, so that it can also save raw materials and improve the service life of the paper.
Recommended products from TDD:
TDD Talcum powder Plastic grade 1250mesh, Click picture, buy it now.
TDD Fine 2000mesh talc powder, Click picture, buy it now.
