
Perlite

Pertile is an acidic volcanic glass with pearl structure. After heating, it can expand to 12-15times, It possesses the characteristics of very light, thermal insulation,sound insulation, strong ab-sorption etc--- It is used in such industries as new build-ing materials, petroleum chemistry, metallurgy, casting, agriculture, food filter, and environment protection.
Chemical elements
Element | S1O2 | At2O3 | Fe2O3 | CaO | MgO | K2O | Na2O |
Content | 73.4 | 13,47 | 1.24 | 2.49 | 0.19 | 3.SS | 3.05 |
Pecification and quality
Spe. | Capacity kg/m3 | Ratio | Water contcut % | Thermal conductivity (kcal/m.h.w) |
4 -7mm | <120 | <10 | <10 | <0.045 |
3 -6mm | <90 | <8 | <8 | <0.045 |
2 - 4mm | <80 | <8 | <8 | <0.045 |
0.2 -0.5mm | <50 | <0.55 | <2 | <0.045 |