Dehydrated Mica Powder
Dehydrated Mica Powder
Dehydrated Mica Powder
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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