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Pyrofrac 1855

Oxide Analysis Formula
K2O 0.45% 0.03
Na2O 0.45% 0.05
TiO2 0.40% 0.03
Al2O3 15.50% 1.00
SiO2 77.00% 8.43
Fe2O3 1.00% 0.04
H2O5.20%
Oxide Weight 623.85
Formula Weight 658.06

Notes

Used in structural clay coatings, refractory formulations, whiteware ceramics, art pottery to
increase refractoriness, reduce shrinkage, and widen firing range.
This material is made by crushing & screening of selectively mined andalusite/pyrophyllite/sericite ores
with heavy media separation.

Related Information

Links

Materials Andalusite
Materials Pyrophyllite
Materials Alkatrol
Materials Pyrofrac
Materials Seriphyl

Data

Bulk Density lbs/cu. ft. (Packed)65
Pyrometric Cone Equivalent20
Sieve Analysis Dry+100 mesh: 0.1 +200 mesh: 9.0 +325 mesh: 20.9
Density (Specific Gravity)2.6

By Tony Hansen


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