Soapstone Powder

Specifications of soapstone powder

Sio2 60% to 62% LOI 4% to 5%
MgO 30% to 33% CaO Below 1%
Fe2o3 Below 1.5% Al2O3 0.25% to 0.28%

Physical Properties

  • Appearance: White fine smooth powder
  • Sp. gravity: 2.7 to 2.9
  • Bulk density: 0.5%
  • Oil absorption value: 35 to 40%
  • Hardness: 1 (Mohs)
  • Moisture & Volatile matter: 0.5% by wt. (105 deg. C)
  • Water soluble matter: Max 0.5%
  • pH of 10% aqueous solution: 8 to 10
  • Minimum 88% combined magnesium calcium silicate

Capacity: 15,000 MT/Year