OIL DRILLING GRADE
Form Hollow Spheres
Appearance Free Flowing Powder
Color Light Grey / Off white
Moisture 0.3 to 0.5 % max
Ph 7 – 9
Particle density 0.45 – 0.8 gm/cc
Specific Gravity 0.60 – 0.85 g / cc
Bulk density 0.32 – 0.45 Kg / lit
Flammability Incombustible
Melting Point 1000 to 1300 Deg. Celsius
Loss on ignition 2 % Max
Solubility in Water / Organic solvents Non Soluble
Hardness 5 – 6
Crush Strength 120 – 260 kg / cm 2
Oil Absorbtion 16 – 18 g oil / 100 g
Thermal Conductivity 0.10 Wm/ mK
Reactivity Inert Glass of very low reactivity.