Rhodium (Rh) deformed condition

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Description

The silver-white, hard precious metal material rhodium (Rh) belongs to the light platinum metals (density around 12 g/cm³). Rh is resistant to acids in a compact form such as iridium, but it dissolves finely distributed in aqua regia and concentrated sulfuric acid. It reacts with oxygen at high surface temperature (in contrast, ruthenium and osmium form volatile oxides). The processability depends crucially on the degree of purity. Pure rhodium can be forged in red hot, can be rolled and pulled. The material is characterized by high thermal and electrical conductivity. Application: Rhodium has greater practical importance than the other platinum metals except platinum and palladium. In car exhaust catalysts, mainly Pt / Rh or Pt / Pd are used. Furthermore, rhodium is used in chemical and electrochemical apparatus engineering (crucible for growing single crystals for the optical industry and laser technology), for spinnerets and thermocouples (Pt / Rh). Rhodium layers have the advantage over all other platinum metal coatings of particularly high hardness, mechanical and chemical resistance and high reflectivity (for example, for silvering). Furthermore, Rh is also used as a contact material and for heating coils and mirrors. Rhodium is sufficiently ductile, corrosion resistant, oxidation resistant up to 800°C, abrasion resistant. It is limited machinable, electrodepositable and can be separated from the gas phase.

Related Standards

Degussa

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	20.0 °C	12.4 g/cm³ Show Material materials with Dichte of 12.4 g/cm³

Mechanisch

Property	Temperature	Value
Elastizitätsmodul	-190.0 °C	405 GPa Show Material materials with Elastizitätsmodul of 405 GPa
	20.0 °C	380 - 386 GPa Show Material materials with Elastizitätsmodul of 380 - 386 GPa
	200.0 °C	368 GPa Show Material materials with Elastizitätsmodul of 368 GPa
	400.0 °C	346 GPa Show Material materials with Elastizitätsmodul of 346 GPa
	500.0 °C	336 GPa Show Material materials with Elastizitätsmodul of 336 GPa
	600.0 °C	325 GPa Show Material materials with Elastizitätsmodul of 325 GPa
	700.0 °C	315 GPa Show Material materials with Elastizitätsmodul of 315 GPa
	800.0 °C	304 GPa Show Material materials with Elastizitätsmodul of 304 GPa
	900.0 °C	291 GPa Show Material materials with Elastizitätsmodul of 291 GPa

Härte, Vickers	20.0 °C	410 [-] Show Material materials with Härte, Vickers of 410 [-]
Poissonzahl	20.0 °C	0.26 [-] Show Material materials with Poissonzahl of 0.26 [-]
Schubmodule	20.0 °C	150 - 153 GPa Show Material materials with Schubmodule of 150 - 153 GPa
Zugfestigkeit	20.0 °C	1925 MPa Show Material materials with Zugfestigkeit of 1925 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	50.0 °C	8E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 8E-6 1/K
	100.0 °C	8.5E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 8.5E-6 1/K
	200.0 °C	9E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 9E-6 1/K
	300.0 °C	9.3E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 9.3E-6 1/K
	400.0 °C	9.6E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 9.6E-6 1/K
	500.0 °C	9.8E-6 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 9.8E-6 1/K
	600.0 °C	1E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1E-5 1/K
	700.0 °C	1.01E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.01E-5 1/K
	800.0 °C	1.03E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.03E-5 1/K
	900.0 °C	1.05E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.05E-5 1/K
	1000.0 °C	1.08E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.08E-5 1/K
	1100.0 °C	1.1E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.1E-5 1/K
	1200.0 °C	1.13E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.13E-5 1/K
	1300.0 °C	1.15E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.15E-5 1/K
	1400.0 °C	1.18E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.18E-5 1/K
	1500.0 °C	1.21E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.21E-5 1/K
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Schmelzpunkt		1963 °C Show Material materials with Schmelzpunkt of 1963 °C	Typical for Rhodium
Spezifische Wärmekapazität	23.0 °C	254 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 254 J/(kg·K)	Typical for Rhodium
Wärmeleitfähigkeit	-173.0 °C	185 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 185 W/(m·K)
	-73.0 °C	156 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 156 W/(m·K)
	20.0 °C	88 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 88 W/(m·K)
	127.0 °C	145 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 145 W/(m·K)
	327.0 °C	135 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 135 W/(m·K)
	527.0 °C	126 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 126 W/(m·K)
	727.0 °C	121 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 121 W/(m·K)
	927.0 °C	118 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 118 W/(m·K)
	1127.0 °C	115 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 115 W/(m·K)
	1327.0 °C	109 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 109 W/(m·K)
	1527.0 °C	106 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 106 W/(m·K)
	1727.0 °C	104 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 104 W/(m·K)
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Elektrisch

Property	Temperature	Value
Elektrische Leitfähigkeit	20.0 °C	2.33E+7 S/m Show Material materials with Elektrische Leitfähigkeit of 2.33E+7 S/m
spezifischer Widerstand	20.0 °C	4.3E-8 Ω·m Show Material materials with spezifischer Widerstand of 4.3E-8 Ω·m

Chemical properties

Property	Value
Rhodium	99.9 % Show Material materials with Rhodium of 99.9 %

Rhodium (Rh) deformed condition

Description

Related Standards

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Eigenschaften