1.Specification:
Perlite sand(unexpanded perlite):12-16mesh,14-20mesh,16-32mesh,20-40mesh
30-50mesh,50-150mesh,200-325mesh
2.Physical and Chemical Properties
Physical Properties | Chemical Compositions | ||
Exterior | Grey peppets | SiO2 | 68-74 |
Specific gravity | 2.2-2.4g/cc | Al2O3 | 12-16 |
Vickers hardness | 5.5-7 | Fe2O3 | 0.1-2 |
Softening point | 890-1090 | CaO | 0.15-1.5 |
Melting point | 1280-1350 | Na2O | 4-5 |
PH | 6.5-7.5 | K2O | 1-4 |
Liquid solubility | <1% | Loss in burning | 4-8 |
Acid solubility | <2% | MgO | 0.3 |
Dioptre | 1.483-1.506 |
3.Application:
used in oxygen manufacturing and freezer as well as insulating layer in transporting liquid oxygen and hydrogen
used in filter liquor,,oil,medicine,food and dirty water
used as filling and dilating agent in rubber,painter and plastic,etc.
used as catalyst in explosives
used to absorb floating oil.
used in agriculture and gardening to improve the soil and withhold water and fertilizer
mixed with different benders to make templets of different sizes and functions.
used as in large volume as insulating layers in industrial smelting furnaces and walls and floors of architecture.
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