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Company KOLTEX COLOR, s.r.o, Czech distributor of talcs
10 different types constantly on our stock
many other types upon your request
we may find suitable type for your application
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Talc as the definig mineral for the value of 1 of Mohs hardness it can be
easily scratched by a fingernail. It has a specific gravity of 2,5 -
2,8, a clear or dusty lustre, is translucent to opaque. Its colour ranges from white to grey (or green, pink, blue,
violet).
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Talcum powder is valued for its extreme softness, smoothness, high lubricating and
hiding power and ability to absorb oil and grease. It is chemically inert to
acids and alkalies. It has been found to be an excellent filler. It can
withstand temperatures upto 1300ºC. It has low electrical and thermal
conductivity.
It can be easily powdered, cut and sawn into any shape and size.
These properties in talc are of extreme value for various
industrial applications as filler in rubber, textile, plastic,
linoleum, asbestos products, polishes and soaps; as a loading agent for
paper of all kinds; as a carrier of insecticidal and pesticidal dusts.
Most of the rubber manufacturers use talc powder as a lubricant to
prevent rubber goods from sticking. |
ystal structure
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Crystal structure |
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TALCS |
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There
are many types of talcs. The name "talc" does not describes the
diversity of this mineral in nature. On one hand the talc is a pure
magnesium silicate and on the other hand it is a common name for rocks
containing more minerals. Pure talc has the following chemical
formula: Mg3[Si4O10(OH)2]. Theoretical chemical analysis has the
following values:
SiO2 63,5%
MgO 31,7%
H2O 4,8%
more on
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WHITENESS TO 93
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