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Pyrophyl R-1403

Oxide Analysis Formula
Na2O 0.20% 0.02
TiO2 0.40% 0.02
Al2O3 21.00% 1.00
SiO2 74.70% 6.04
Fe2O3 0.70% 0.02
K2O 0.20% 0.01
Oxide Weight 472.11
Formula Weight 485.71


The PYROPHYL group of mineral products consists of milled co-products of the Andafrac series and various milled combinations of the Pyrofrac and Andafrac series. The broad range of alumina contents allows for both whiteware and refractory applications.

Pyrophyl is a high melting material and is used to reduce hot load deformation and improve volume stability in refractories.

Related Information


Materials Pyrophyl R-2252
Materials Pyrophyl R-2253
Materials Pyrophyllite
Materials Pyrophyl
Typecodes Aluminum Silicate
Materials not classifiable as commonly known aluminum silicates. For example, kaolin is a common aluminum silicate.


Bulk Density lbs/cu. ft. (Packed)60
Pyrometric Cone Equivalent29
Sieve Analysis Dry+200 mesh: 12%
Density (Specific Gravity)2.70

By Tony Hansen

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