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Pumice

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 s
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Description

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

900℃

1200℃

 

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%

 

 

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.