The mineral talc is a hydrated magnesium-hydrogen-containing silicate having the chemical formula H2Mg3 (SiO3) 4 or Mg3Si4O10 (OH) 2. The fylosilicaat belongs within the clay minerals of the smectite group. The mineral is a platelet-shaped to needle-shaped mass with an alternate name steatite. The monoclinic crystal structure is rare. Talk is a very soft mineral and defines a hardness of 1. Talc feel soapy or greasy. It has an average density of 2.75 kg / dm3 and is translucent. The color is white to gray or green by iron contamination. Talc is used as a filler in paper, paint, rubber, plastics and ceramics. It is also used as a powder in the cosmetics, in food industry and in medicine. E number of talk is E553b. Talk behaves hydrophobic, it has a high proportion of binder required. It ensures a good connection between the paint and the material to be dyed. Talc is also sold under the names steatite and soapstone is used by sculptors to carve figurines. Because of its low hardness lends itself as well to talk. Soapstone is also used as a sheath heater, because of the ability to store a great deal of heat, and that to be dispensed very slowly back to the environment over an extended period of time. Soap stone is a mineral from the group of talc, which is called saponite. Saponite The word is derived from the Latin word for soap. Steatite is also used in the so-called "dry" resistance heating elements of electric storage heaters for hot water.
|H35 X B90 X L90mm