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Perlite P15 Medium

Applications

Chemical Properties

Perlite P15 is an aluminium silicate. Typical composition is:

CompoundPercentage
Silicon73%
Aluminium15%
Iron (Fe2O3)2%
Sodium (Na2O)3%
Potassium (K2O)5%
Calcium (CaO) + Magnesium (MgO)1%
Others1%
Organic Matternil
Moisture Content (when packed)< 0.8%

Physical Properties

Expanded Perlite P15 is white with a nominal particle size of 0.15 - 3.0 mm.

Refractive Index1.5
Free Moisture (max)<0.5%
pH of Water Slurry6.5 - 7.5
Softening Point890 - 1100oC
Fushion Point1280 - 1350oC
Specific Heat837 J kg -1 K-1
Thermal Condcuctivity (loose poured)0.05 w/mC
Bulk Density (Loose Poured) 90 - 130kg m-1

Typical Grading

Sieve Size% by weight passing
2.360 85 - 100
1.700 65 -90
1.180 50 - 75
0.600 25 - 50
0.300 0 - 25
0.150 0 - 10

Note: Nominal particle size indicates the 80% band i.e. up to 10% above of below the specified range