Rhodium (Rh) is a very rare, silvery-white, hard, corrosion-resistant, and chemically inert transition metal. The element's major use is as one of the catalysts in the three-way catalytic converters in automobiles. Other applications of Rhodium include alloy element for high-temperature and corrosion-resistive coatings, asymmetric hydrogenation membrane and optical coatings.

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Name	Rhodium
Chemical Formula	Rh
CAS #	7440-16-6
Atomic Number	45
Molecule Weight (g/mol)	102.9055
Color/Appearance	Silvery White Metallic
Purity	≥99.95%, 3N5
Thermal Conductivity (W/m.K)	150
Melting Point (°C)	1,966
Coefficient of Thermal Expansion (/K)	8.2 x 10^-6
Theoretical Density (g/cm³)	12.41
Z Ratio	0.21
E-Beam	Good
Thermal Evaporation Techniques	Boat: W Coil: W Basket: W Crucible: ThO₂
E-Beam Crucible Liner Material	Graphite, Tungsten
Temp. (°C) for Given Vap. Press. (Torr)	10^-8: 1,277 10^-6: 1,472 10^-4: 1,707

MSE Supplies offers a variety of crucibles for evaporation materials. We can customize the dimensions based on your requirements.

References:

1. Strong metal–support interactions on rhodium model catalysts. Applied Catalysis A: General 391, no. 1-2 (2011): 175-186.

2. Method for independent control of particle size and distance in rhodium epitaxy on TiO₂ (110)-(1×2) surface: An STM study. Surface science 400, no. 1-3 (1998): 281-289.

3. Optical properties of evaporated rhodium films deposited at various substrate temperatures in the vacuum ultraviolet from 150 to 2000 Å. JOSA 61, no. 3 (1971): 360-364.

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