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| AluChem SAS |
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| Zircon Sand and Flour |
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| - Raw material in high temperature refractories and as a mold wash in foundry applications. |
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Chemical Formula : ZrSiO4
Specific Gravity : 4.2-4.8
Melting Temperature : 2200'C
Refractive Index : 1.9-2.0
Mohs' Hardness : 7.5
Coefficient of Linear Expansion : 7.2 x 10-6 cm/cm 'C
ZrO2, % : 66.0
SiO2 (Total), % : 32.7
SiO2 (Free), % : 0.25
Al2O3, % : 0.18
TiO2, % : 0.25
Fe2O3, % : 0.20
P2O5, % : 0.14
S, % : 0.002
CaO, % : 0.10
MgO, % : 0.03
Free Moisture (110°C), % : 0.05
L.O.I. (1000'C), % : 0.30 |
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