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Dehydrated Mica Powder

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Natural mica is chemically a crystal of Dehydrated Mica Powder containing on an average four and a half percent moisture.this moisture is an enemy of stainless steel electrodes in as much as. it provides an hydroxylion to the molten is chemically a crystal of potassium alumino silicate containing on a average four and a half percent moisture.this moisture is an enemy of stainless steel electrodes in as much as it provides an hydroxylion on the molten stainless steel. hydrogen is a hardener of stainless steel and is therefore undesirable.Dehydrated Mica is manufacture by a such that the the hydroxyl (h2o) is removed without damaging the structure of mica.


Features:

  • LOI guaranteed below 0.2%
  • Mesh (-)100

Chemical Analysis :

  • Silicon
    as SiO2 46 – 50
  • Aluminium
    as Al2O3 32 – 37
  • Potassium
    as K2O
    9 – 12
  • Iron
    as Fe2O3 3 – 7.0
  • Sodium
    as Na2O 0.4 – 1.0 ) Combined Sodium Calcium
  • Magnesium
    as MgO
    0.1 – 1.5 ) Magnesium Oxides should
  • Calcium
    as CaO 0 – 0.1 ) not exceed 3 %
  • Sulphur
    as S
    0.01 – 0.03
  • Phosphorus
    as P2O5 0.002 – 0.05
  • Fluorine
    as F
    0.2 – 0.40

Physical Properties:

  • Specific Gravity
    2.80
  • Refractive Index
    1.58
  • Hardness
    2.50
  • pH
    9
  • Water Soluble Matter
    0.50

Particle Size Distribution:

  • + 60
    Strictly Nil
  • + 100
    – 0.5% Max (No Flaky Portion and all passing through 60 mesh)
  • - 100 + 200
    – 10 - 20%
  • - 200 + 300
    - 10 - 20%
  • - 300
    - 50 - 70% (to be controlled as minimum as possible)
  • Colour White to slightly Off White Muscovite Mica
  • Loss On Ignition @ 910 +/- 100C. 4.5 - 5 %
  • Packing : 25 Kgs Nett in New Hdpe Woven Sacks with Inner poly bags.

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