Super march 9 20mm 100L perlite agriculture price
- Category: Perlite >>>
- Supplier: Lingshou,Jiaqi,Mineral,Processing,Factory
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Description
Products Description
Perlite
Perlite Perlite Perlite is a volcanically erupted acidic lava, a vitreous rock formed by rapid cooling, so named because of its pearly fissure structure. Perlite mines include perlite, obsidian and turpentine. The difference between the three is that perlite has arc-shaped cracks formed by condensation, called perlite structure, with a water content of 2~6%; turpentine has a unique rosin luster, with a water content of 6~10%; obsidian has glass Luster and conchoidal fracture, the water content is generally less than 2%.
specification
foreign name | Perlite |
colour | Yellow and white, meat red, etc. |
category | acid lava |
luster | glass luster |
Test weight | ≤80kg/m3~200kg/m3 |
density | 2.2~2.4g/cm3 |
Refractoriness | 1300~1380℃ |
expansion factor | 4~25 |
chemical composition | SiO2 70%±, H20 4~6%, Fe2O3 |
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