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Physical Properties of Gilsonite

                            Color in Mass

Color in Streak or Powder

Softening Point

Moisture Content

Ash Content

Specific Gravity @ 77°F

Hardness (Moh's Scale)

Penetration

Volatility, Weight %,
       5 Hours @ 325°F
       5 Hours @ 400°F
       5 Hours @ 500°F

Flash Point, C.O.C.

Acid Value

Saponification Value

Iodine Number

Heat of Combustion

Heat of Fusion

Specific Heat of Solid Phase

Specific Heat of Liquid Phase

Glass Transition Temperature, Tg    

Bulk Density, Lump

Electrical Resistivity

Viscosity, Brookfield
      @ 375°F
      @ 400°F
      @ 425°F
      @ 450°F

Black

Brown

265-400 °F

0.5 %

0.5 %

1.04-1.06

2

0


< 2%
< 4%
< 5%

600 °F

2.3

5.6

0

17,900 Btu / lb.

9990 Btu / lb.

0.52 Btu / lb. / °F

0.61 Btu / lb. / °F

185-225 °F

40 lbs. / ft3

4.0 x 1012 ohm-cm

55,000 cps
22,800 cps
6,600 cps
2,800 cps


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