Talc

• Post Date:

  Aug 07,2017

• Expiry Date:

  Aug 07,2018

• Detailed Description:

  Cas No. :14807-96-6 MOLECULAR FORMULA: 3MgO•4SiO2•H2O
  MOLECULAR WEIGHT: 260.8617
  FEATURES AND BENEFITS
  Talc is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. In loose form, it is the widely used substance known as talcum powder. It occurs as foliated to fibrous masses, and in an exceptionally rare crystal form. It has a perfect basal cleavage, and the folia are non-elastic, although slightly flexible. It is the softest known mineral and listed as 1 on the Mohs hardness scale. It can be easily scratched by a fingernail. It is also sectile (can be cut with a knife). It has a specific gravity of 2.5–2.8, a clear or dusty luster, and is translucent to opaque. Talc is not soluble in water, but it is slightly soluble in dilute mineral acids. Its color ranges from white to grey or green and it has a distinctly greasy feel. Its streak is white.
  APPLICATION: Plastic, Coating, Paint, etc.
  TECHNICAL SPECIFICATIONS
  ITEM CT18 CT42 CT45
  Whiteness 90% Min 90% Min 90% Min
  Medium Particle Size 15um Max 10um Max 10um Max
  Moisture 0.5% Max 0.5% Max 0.5% Max
  Asbestos None None None
  Bulk Density 0.45% Max 0.3% Max 0.3% Max
  Loss on Ignition 8% Max 13% Max 15% Max
  MgO 30% Min 30% Min 30% Min
  Al2O3 0.4% Max 0.4% Max 0.4% Max
  Fe2O3 0.4% Max 0.4% Max 0.4% Max
  Mainly Application Paint Plastic Coating
  
  

• CAS Registry Number:

  14807-96-6

• Synonyms:

  ;Agalite;Asbestin;Asbestine;Beaver White 200;Cosmetic Talc;French Chalk;Magnesium Silicate Talc;Snowgoose;Talc?;Talc [JAN];MagnesiumSilicate Talc, Pharma & food;talc fine powder extra pure;Talc Powder;superfine;Talcum;oxosilanediol;magnesium hydroxy(oxo)silanolate oxosilanediolate (3:2:2);silanediolate, 1-oxo-, magnesium salt (4:3);dioxosilane - oxomagnesium (4:3) hydrate;

• Molecular Formula:

  H₂O₁₂Mg₃Si₄

• Molecular Weight:

  379.2657

• Molecular Structure:

  

• Company:

  Chemine Materials Technology CO.,Limited     [ China ]        

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  Gina Li

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