Talc: A Mineral in Your Daily Life
Talc (Soapstone) also known as Steatite is composed of Hydrated Magnesium
Silicate with the chemical formula of Mg3Si4O10(OH)2.
Soapstone is relatively soft because of its high Talc content. Talc is usually green, white or colourless. It is a translucent mineral with a pearly lustre. It is the softest known mineral and is assigned a hardness of 1 on theMohs Hardness scale. Talc is extremely soft, greasy, soapy feel and its valued as a high-temperature lubricant.
Although talcum powder and soapstone are two of the more visible uses of talc, they account for a very small fraction of talc consumption. Its hidden uses are far more common. Talc's unique properties make it an important ingredient for making ceramics, paint, paper, roofing materials, plastics, rubber, insecticides, and many other products.
Talc is a monoclinic mineral with a sheet structure similar to the micas. Talc has perfect cleavage that follows planes between the weakly bonded sheets. These sheets are held together only by van der Waals bonds, which allows them to slip past one another easily. This characteristic is responsible for talc's extreme softness, its greasy, soapy feel, and its value as a high-temperature lubricant.
|Colour||Green, white or colourless|
|Al2 O 3||01.45|
|Specific Gravity||2.6 to 2.8|
|Lead (as Pb)||<10mg/kg|
✅ Fluxing Agent
✅ Frit & Glaze Properties
✅ Mechanical Properties
✅ Thermal shock resistance-Cordierite
✅ Controlled oil absorption and viscosity
✅ Excellent hiding power
✅ Improves water, alkali & stain resistance
✅Paint & Coatings
✅ Ceramics & Glass
✅ Ink & Pigments
✅ Adhesive & Sealant
✅ Cosmetics / Oral Care
✅ Agro Chemicals