SWR said:
jeweler's rouge - used to dress the buffing wheel
This is usually a mix of aluminium oxide and wax
Aluminium oxide
General
Other names Alumina,
Aluminium(III) Oxide
Molecular formula Al2O3
Molar mass 101.96 g/mol
CAS number [[1344-28-1] [1]]
Properties
Density and phase 3.97 g/cm³, solid
Solubility in water Insoluble.
Melting point 2054°C
Boiling point ~3000°C
Thermal Conductivity 18 W/m·K
Structure
Coordination
geometry Octahedron.
Crystal structure Cubic.
Thermodynamic data
Standard enthalpy
of formation ΔfHosolid -1675.7 kJ/mol
Standard molar entropy
Sosolid 50.92 J/(mol K)
Heat capacity Cp 79.04 J/(mol K)
Hazards
MSDS External MSDS
EU classification Not listed.
NFPA 704
000
Flash point
Non-flammable.
Supplementary data page
Structure and
properties n, εr = 9.5, etc.
Refractive index at
different wavelengths
Thermodynamic
data Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other anions Aluminium hydroxide
Other cations Boron trioxide
Gallium oxide
Indium oxide
Thallium oxide
Related compounds Aluminium hydroxide
Mojjax...Dont taste anymore of it....