1.expanded horticultural perlite

2.it can be used in oxygen manufacturer and freezer as well as insulating layer in transporting liquid oxygen and hydrogen.

it can be sused to filter liquor,oil,medicine,food and dirty water.

it can be used as filling and dilating agent in rubber,painter and plastice,etc.

it can be used as catalyst in explosives.

it can be used to absorb floating oil.

it canbe used in agriculture and gardening to improve the soil and withhold water and Fertilizer.

it can be mixed with different benders to make templets of different sizes and functions.

it can be used as in large volume as insulating layers in industrial smelting furnaces and walls and floors of architectures.

3.

• refractive index : 1.483-1.506
• free moisture : maximum 0.5%
• ph (of water slurry) : 6.5 - 7.5
• specific gravity : 2.2 - 2.4 g/cc
• bulk density (loose weight) : depending on the expansion process but usually in the 2-25 lb/ft³ range (32-400 kg/m³)
• softening point :1600 - 2000 ^of (871 - 1093 ^oc)
• fusion point :  2300-2450 ^of (1280 - 1350^oc)
• specific heat : 0.2 btu/lb^of (387 j/kgk
• mgo :0.3