Super march 9 20mm 100L perlite agriculture price (1600738730529)

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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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1600738730529
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