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OX1682 Cordierite Powder (2MgO·2Al2O3·5SiO2)

  • Catalog No. OX1682
  • Bulk Density 0.42 g/cm3
  • Melting Point ~1179- 1471 °C
  • Spec. Gravity ~2.3
  • Molecular Weight 595 g/mol

Cordierite Powder Description

Cordierite Powder is made from talc mixed with clay and aluminum oxide. There are no known large deposits of natural cordierite. It has a low coefficient of thermal expansion, high mechanical strength, low density, and low dielectric loss.
1) Chemical Name: Magnesium-alumina silicate / Magnesium iron aluminum cyclosilicate
2) Chemical Formula: (Mg, Fe)2Al4Si5O18
Cordierite Powder Theoretical Analysis: MgO= 13.8%, Al2O3= 34.8% and SiO2= 51.4%

Cordierite Powder Synonyms

Magnesium aluminosilicate, dichroite, iolite, cordierite, cordierite powder, magnesium alumina silicate, aluminum magnesium silicate, CAS# 1302-88-1
Physical Properties
1) Crushed and sized grain or powder
2) Standard Granulations Available
a) APS= 6 to 7 microns
b) 80% finer than 45 microns
c) Custom granulations for large-volume users

Cordierite Powder Specifications

Molecular Weight (g/mol.) 595
Bulk Density (g/cm3) 0.42
Thermal conductivity (cal/s-cm-°C) 0.002
Melting Point (°C) ~1179- 1471
Specific Gravity (g/cu m) ~2.3
Specific heat @25°C (cal/g-°C) 0.35
Color ?tan
Mohs Hardness 7
Water Absorption % at room temperature ?0.02 to 3.2
Thermal Expansion (in/in°C (20deg. C-700 deg.C) 2.3 X10-6
Specific Gravity 2.6- 2.7
Crystallography orthorhombic

Cordierite Powder Classification

Cordierite Powder TSCA (SARA Title III) Status
Cordierite Powder CAS Numbers: CAS# 1302-88-1 (alumina magnesium silicate) plus 1302-93-8 (mullite) plus 1302-87-8 (spinel)

Cordierite Powder Typical Applications

Cordierite Powder is used to manufacture kiln furniture, molded honeycomb-like catalyst supports in auto emission reduction devices, thick films, porous ceramics, feed-thru insulators, vitrified ceramics, high-frequency insulators, high-performance resistors, special furnace shapes, heating element supports, exhaust catalyst supports, burner tubes, refractory setters, and substrates.
Cordierite is not a very common mineral but is important as a component of glass-ceramic materials used in applications where the material must have minimal thermal expansion (eg cooker hobs).

Cordierite Powder Packaging

Bags, drums, and bulk bags

Related Documents
Alumina Ceramic Materials Brochure
Technical brochure for Alumina Ceramic Materials, all grades. Revision March 2023.
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