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PHYSICAL SPECIFICATION OF GILSONITE

gilsonite l

Physical Properties of Gilsonite
"Natural Asphalt 'Natural Bitumen"And FLC"Fluid Loss Cntrol

                                 Physical Properties of Gilsonite
Color in Mass Black
Color in Streak or Powder Brown - Dark Brown
Softening Point 265-600 °F
Moisture Content 0.5 - 3.5% %
Ash Content 0.5 % - 12%
Specific Gravity @ 77°F 1.04-1.06
Hardness (Moh's Scale) 2
Penetration 0 - 2
Volatility, Weight %,
       5 Hours @ 325°F < 2%
       5 Hours @ 400°F < 4%
       5 Hours @ 500°F < 5%
Flash Point, C.O.C. 450-600 °F
Acid Value 2.3
Saponification Value 5.6
Iodine Number 0
Heat of Combustion 17,900 Btu / lb.
Heat of Fusion 9990 Btu / lb.
Specific Heat of Solid Phase 0.52 Btu / lb. / °F
Specific Heat of Liquid Phase 0.61 Btu / lb. / °F
Glass Transition Temperature, Tg     185-250 °F
Bulk Density, Lump 40 lbs. / ft3
Electrical Resistivity 4.0 x 1012 ohm-cm
Viscosity, Brookfield
      @ 375°F 55,000 cps
      @ 400°F 22,800 cps
      @ 425°F 6,600 cps
      @ 450°F 2,800 cps

PHYSICAL SPECIFICATION OF GILSONITE PDF