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| AluChem SAPC |
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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), % : 32.5
SiO2 (Free), % : 0.20
Al2O3, % : 0.12
TiO2, % : 0.12
Fe2O3, % : 0.06
P2O5, % : 0.12
S, % : 0.002
CaO, % : 0.08
MgO, % : 0.02
Free Moisture (110°C), % : 0.05
L.O.I. (1000'C), % : 0.10 |
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