Pumice, with crude appearance,get its name for it can float on the water. It is a natural,ideal,environmental product with the following characteristics:light,high strength,acid and alkali-resistance,corrosion-resistant,no-pollution,no- radioactivity and so on.
physical property
color |
hardness |
PH |
radioactivity |
ignition loss |
Water materials |
Acid materials |
Density |
softening point |
Fusion temperature |
grey |
5.0 |
7.0 |
0 |
3% |
0.15% |
2.7% |
350-900g/l |
900ºC |
1200ºC |
Chemical property
SiO2 |
AL2O3 |
Fe |
Fe2O3 |
H2O |
Na |
K |
Ca |
TiO2 |
SO3 |
71.5% |
12.5% |
12.5% |
1.5% |
3.4% |
1.6% |
1.8% |
2.8% |
0.2% |
0.1% |
Application
In China it is mainly used in these fields:
1.Building:natural concrete light aggregate. Like heat insulation and preservation materials ,floor,wallboard,active addition and so on.
2. Chemical Industry: filtering medium,desiccant,catalyst,molecular sieve carrier.
3. Plastics and Padding Industry
4. Others: pesticides carrier,fertilizer control agent.
In foreign countries it is mainly used in following fields:
1.Building Materials: as padding can reduce weight and increase refract ability.
2.Abrasive Industry: mainly as abrasive and polishing composition.
3.Daily-Use Chemical Industry: beauty materials,padding of cosmetics,toothpaste,soap and so on.
4.Petrochemical Industry: as padding of rubber,asphalt,paper making,paint and so on.
5.Heat Insulator: pumice is the main material, we can get mineral wool product after high melt which is used as ceiling sound insulation.
Detailed Photos
Packaging & Shipping
Factory