Talc (CAS 14807-96-6)

Talc (CAS 14807-96-6)

Talc, or talcum, is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg3Si4O10(OH)2. Talc in powdered form, often combined with corn starch, is used as baby powder. This mineral is used as a thickening agent and lubricant; is an ingredient in ceramics, paint, and roofing material; and is a main ingredient in many cosmetics. It occurs as foliated to fibrous masses, and in an exceptionally rare crystal form. It has a perfect basal cleavage and an uneven flat fracture, and it is foliated with a two-dimensional platy form.

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Description
Additional information

Product Description

Information

Industries: Paints and varnishes, Household chemicals, Cosmetic industry, Adhesives, oils, greases, Pharmaceutical industry, Building chemistry, Resins, plastics, polyurethanes
CAS number: 14807-96-6
WE number: 238-877-9
Chemical formula: 3Mg2∙4SiO2∙H2O
Molar mass: 379,34 g/mol
Customs tariff code: 25262000

Other physical properties

pH: 7,0 – 9,0 (50 g/l H20, 20°C )
Melting / freezing point: > 1300°C
Relative density: ~2,75 g/cm3