Product Information - Perlite

Information

Perlit is an alumosilicate ore of volcanic origin.
Processing method: Perlite is a unique volcanic mineral which expands, due to the presence of two to six percent combined water, from four to twenty times its original volume when it is quickly heated to a temperature of more than 1000°C.

Specification

Chemical analysis: c. 71 - 75% SiO2, c. 12,5 - 16% Al2O3
Colour: white to grey
Particle shape: splintered
Specific weight: c. 2,0 - 2,4 g/cm3
Specific gravity: c. 1,05 - 1,2 g/cm3
Melting point: c. 1100°C
Thermal conductivity: 0,040 - 0,070 W/mK
MOHS hardness: c. 7
Grain size: Grain sizes: 0 - 0,3 mm, 0,3 - 0,6 mm, 0,6 - 1,2 mm, 1,0 - 2,5 mm Special grain sizes: on request

Contact

Possehl Erzkontor GmbH & Co. KG
Beckergrube 38-52
23552 Lübeck

Phone:  +49 - (0) 451 - 148 0
Fax:  +49 - (0) 451 - 148 355