Perlite By Astrra Chemicals

Perlite is an amorphous volcanic glass, It occurs naturally and has the unusual property of greatly expanding when heated sufficiently,

Because of its low density it has many commercial applications

In the construction and manufacturing fields,

it is used in light weight plasters and mortars, insulation and ceiling tiles.

In horticulture, perlite can be used as a soil amendment and helps prevent soil compaction.

Perlite is an excellent filter aid. It is used extensively as an alternative to diatomaceous earth.

Small quantities of perlite are also used in foundries and in ceramics as a clay additive.


PERLITE - ( GRADE AA )


CERTIFICATE OF ANALYSIS


SILICA


SiO2


75.00 TO 80%

IRON


Fe2O3


0. 80 to 0. 9%

ALUMINIUM


Al2O3


3. 80 - 6. 95%

CALCIUM OXIDE


CaO


0. 54 -1%

SODIUM


Na2O


0. 5 TO 0. 9%

L. O. I.


-


10. 78 A AcAca A Aca A 12%

BULK DENSITY


-


0. 5 TO 0. 63


PERLITE - ( GRADE - A )


CERTIFICATE OF ANALYSIS


COLOUR


WHITE

TEXTURE


AMMORPHOUS POWDER

SPECIFIC GRAVITY


2.36

DRY LOOSE DENSITY GMS/CC


0.22 TO 0.36

FLOW RATE AT 1 KG.PRESSURE PER MINUTE Sq METER


85 LITERS

LOON ON DRYING


0.31

WATER SOLUBLES


0.37

ACID SOLUBLES


0.40

PH


8.5

LOOS ON % IGNITION AT 1000 DEG.C


0.5