Pyrophyllite is a kind of hydrous aluminum silicate mineral, with melting point of 1, 700¡æ, white, platy radial aggregate. It is of gloss, toughness, chemical stability, low thermal expansion, low thermal conductivity, low electrical conductivity, high insulating ability, high melting point and favorable corrosion resistance. Chemical composition: al2o3¡ý25~30%, sio2¡ü55~70%, fe2o3¡ü1.0%. Whiteness¡ý85% Iii. Due to chemical stability, acid and alkali corrosion resistance, high insulating quality, whiteness, absorbing property and flowability, it is used as carrier or filler in insecticide, specialized fertilizer, paint, rubber, paper making, dyestuff, pharmacy, sugar processing, cosmetics and plastic products. 25kgs/bag