Home Graphite, chemical data
  Graphite 75% Graphite 80% Graphite 85%
C 77.7 81.7 87.3
volatile  2.5  2.8  1.5
ash 19.8 15.5 11.2
       
SiO2 54.3 48.3 49.5
Al2O3 28.1 29.2 29.5
TiO2  1.9  2.71  2.19
Fe2O3  8.5  9.2  7.38
CaO  1.2  2.78  3.19
MgO  1.6  1.52  1.46
Na2O  0.7  1.16  0.55
K2O  3.0  3.4  5.01
P2O5  0.39  1.52  0.91

Analytical data (wt.-%) of "amorphous", microcrystalline graphites of the starting material (top) and residue on ignition (bottom)
acc. to manufacturers data
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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