Pyrophyllite is a phyllosilicate mineral species belonging to the clay family and composed of aluminum silicate hydroxide : AlSi2O5OH. Pyrophyllite Powder occur in two more or less distinct varieties, namely, as crystalline folia and as compact masses; distinct crystals are not known. The folia have a pronounced pearly luster, owing to the presence of a perfect cleavage parallel to their surfaces : they are flexible but not elastic, and are usually arranged radially in fan-like or spherical groups. This variety, when heated before the blowpipe, exfoliates and swells up to many times its original volume, hence the name pyrophyllite, from the Greek pyros (fire) and phyllos (a leaf), given by R. Hermann in 1829. The color of both varieties is white, pale green, greyish or yellowish; they are very soft (hardness of 1 to 1.5) and are greasy to the touch. The specific gravity is 2.65 - 2.85. The two varieties are thus very similar to talc.
This powder is available in required quantity from us. We make sure that this product is free from any kind of contaminant and is precisely composed. This powder can be availed at highly competitive prices from us.
The compact varieties of Pyrophyllite Powder are used for slate pencils and tailors chalk (French chalk) and carved by the Chinese into different kinds of small images and ornaments. Other soft compact minerals (steatite and pinite) used for these Chinese carvings are included with pyrophyllite under the terms agalmatolite and pagodite.
Features:
Features:
- Free from impurities
- Good color
- High strength
- High Alumina
- Required sizing
Uses Of Pyrophyllite:
- Pyrophyllite Powder are added to clay to reduce thermal expansion when firing but they also have many other industry uses when combined with other compounds, such as in insecticide and for making bricks.
- As fluxing agent in ceramics- tiles, sanitary tableware, and glazes
- As strength enhancing in glass and glass wool
- As transparency enhancer in hollow glass, flat glass
- As fillers in paints, plasters, insulation
- Pyrophyllite is also widely used in high-pressure experiments, both as a gasket material and as a pressure-transmitting medium.
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