A course or fine white mineral powder that is naturally occurring, chemically inert and stable to very high temperatures. Insoluble in water, dilute acids and hot concentrated sulfuric acid.
Zircon is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. Hafnium is almost always present in quantities ranging from 1 to 4%. The crystal structure of zircon is the tetragonal crystal class. The natural color of zircon varies between colorless, yellow-golden, red, brown, and green. Colorless specimens that show gem quality are a popular substitute for diamond; these specimens are also known as “Matura diamond”. It is not to be confused with cubic zirconium, a synthetic substance with a completely different chemical composition.
Chemical Name: Zirconium silicate
Chemical Formula: ZrSiO4
Zircon flour / zircon sand, zirconium silicate, zirconium orthosilicate, ZrSiO4, hyacinth, (silicic acid, zirconium (4+) salt), zircon, zirconium silicon oxide, CAS # 10101-52-7
ZrO2= 66.0%, SiO2= 32.0%
- -40 + 200 mesh
- 200 mesh and finer
- 325 mesh and finer
- 400 mesh and finer
- 600 mesh and finer
- Between 0.7 and 2.4 mm bead granulations
ZrSiO4 is High-temperature applications. The primary source for investment casting shell molds, foundry cores, metal chills, ladle brick, welding rod coatings, abrasive cleaning, ceramics, glass, chemical, refractory bricks, abrasive & mold washes, solid oxide fuel cells, and nuclear power plants.
|Molecular Weight (g/mol.)||183.1|
|Bulk Density (lbs./ft.3)||115-130 & 170-180|
|Specific Gravity||4.5 to 4.8|
|Solid Specific Heat||0.132|
|Melting Point (°C)||2200 to 2550|
|Dissociation Temp. (°F)||3200|
|Thermal Exp. Coef. (cm/cm/°C)||4.2|
|Mohs Hardness @20°C||7.5-8.0|
|An angle of Repose (degrees)||30|
|L.O.I.||0.15 to 0.25|
|Thermal Conductivity (BTU/sq.ft./hr/°F/in.)||14.5|