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Talc/Talcum powder price (SiO2 60% MgO 30% LOI 7%)

Talc Technical Data Sheet

Item number LMME-60 LMME-58 LMME-55 LMME-50 LMME-45 LMME-35

SiO2 %≥ 60 58 55 50 45 35

MgO%≥ 31 30 30 31 28 28

CaO %≤ 0.45 0.8 0.8 2 2 2

Fe2O3 %≤ 0.3 0.3 0.3 0.3 0.3 0.3

Al2O3 %≤ 0.2 0.5 0.5 0.5 0.5 0.5

  1. %≤ 7 8 10 15 20 25

Oil-absorbed g/100g 30-55 g/100g

What is Talc? Talc is an important industrial mineral. Its resistance to heat, electricity and acids make it an ideal surface for lab counter tops and electrical switchboards. It is also an important filler material for paints, rubber and insecticides. Even with all these uses, most people only know talc as the primary ingredient in talcum powder. Mineral specimens are not very common as it does not form very large crystals. However, it often replaces other minerals on an atom by atom basis and forms what are called pseudo morphs (false shape). The talc takes the form of the mineral it replaces. A specimen of what looks like milky quartz is quite a surprise when it not only has a soapy feel but can be scratched by a fingernail.

  • Chemistry: Mg3Si4O10(OH)2, Magnesium Silicate Hydroxide
  • Class: Silicates
  • Subclass: phyllosilicates
  • Group: Clays and also The Montmorillonite/ Smectite Group.

• Uses: an ornamental and heat, acid and electrically-resistant stone (soapstone) used as counter tops, electrical switchboards, carvings, etc, used as an ingredient in paints, rubber, roofing materials, ceramics and insecticides. Most commonly known as the primary ingredient in talcum powder.



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