China Soil Free Matrix Organic Fertilizer Agricultural Fertilizer of Pumice Stone

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

colorhardnessPHradioactivityignition lossWater materialsAcid materialsDensity softening point Fusion temperaturegrey5.07.003%0.15%2.7%350-900g/l900ºC1200ºC

Chemical property

SiO2AL2O3FeFe2O3H2ONaKCaTiO2SO371.5%12.5%12.5%1.5%3.4%1.6%1.8%2.8%0.2%0.1%

Usage
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.