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Rhodium atomic absorption standard solution
Catalog Number
ACMA00017465
Product Name
Rhodium atomic absorption standard solution
Category
Reference-Calibration Standards
Description
Rhodium metal fume is a reddish-gray to black dust-like powder. mp: 1966° C, bp: 3727°C. Insoluble in water. Bulk rhodium is a white or blueish-white, hard, ductile, malleable metal. The appearance and other properties of insoluble Rh compounds varies depending upon the specific compound.;DryPowder, OtherSolid;GREY-TO-BLACK POWDER.;Appearance and odor vary depending upon the specific soluble rhodium compound.;Metal: White, hard, ductile, malleable solid with a bluish-gray luster.
IUPAC Name
rhodium
Molecular Weight
102.9055g/mol
Molecular Formula
Rh
Canonical SMILES
[Rh]
InChI
InChI=1S/Rh
InChI Key
MHOVAHRLVXNVSD-UHFFFAOYSA-N
Boiling Point
6741 °F at 760 mm Hg (NIOSH, 2016);3695 °C;3695 °C;6741°F
Melting Point
3571 °F (NIOSH, 2016);1964 °C;1965 °C;3571°F
Density
12.41 (metal) (NIOSH, 2016);12.41 g/cu cm @ 20 °C;12.4 g/cm³;12.41 (metal)
Solubility
Insoluble (NIOSH, 2016);Insoluble in acids and aqua regia; soluble in fused potassium bisulfate.;Insoluble in hot or cold water; soluble in concentrations of sulfuric acid and in sulfuric acid + hydrochloric acid.;Solubility in water: none;Insoluble
Color/Form
Silvery-white, soft, ductile, malleable metal; face-centered cubic structure;...In air, it occurs in the form of gray fume or dust.
Complexity
0
Covalently-Bonded Unit Count
1
EC Number
231-125-0
Exact Mass
102.90549g/mol
Formal Charge
0
Heavy Atom Count
1
ICSC Number
1247
MeSH Entry Terms
Rhodium;Rhodium 103;Rhodium-103
Monoisotopic Mass
102.90549g/mol
Other Experimental
Atomic number 45; valences 1-6; most common states 1, 3; One naturally occurring isotope:103; artificial radioactive isotopes: 97-102; 104-110;Electrical resistivity 4.51 microohm-cm @ 0 °C; Brinell hardness: 100; Not attacked by acids even aqua regia when in compact form; the finely divided metal reacts with aqua regia; Absorbs oxygen when melted; at a read heat is slowly oxidized to the sesquioxide; Converted to the trihalide by chlorine or bromine at a red heat; not attacked by fluorine.;Enthalpy of formation: 556.9 kJ/mol (gas); Heat capacity: 25.0 J/mol K (crystal); 21.0 J/mol K (gas);Enthalpy of fusion: 26.59 kJ/mol;Magnetic susceptibility: 9.9X10-7 cu cm/g; Vickers' hardness: 100-120;High surface reflectivity;Solid phase-temperature of transition (deg K): 2240; liquid phase-temperature of transition (deg K) 4150; heat of transition (Kcal/g mole): solid phase 5.2; liquid phase 127; entropy of transition (EU): solid phase 2.3; liquid phase 30.7; entropy at 298 deg K (EU): solid phase 7.6.;Magnetic susceptibility (Temp K= 298 deg) 111.0X10-6 CGS; (Temp K= 723 deg) 123.0X10-6 CGS;Oxidizes slowly at 6 °C
Rotatable Bond Count
0
Stability
Absorbs oxygen when melted; at a red heat is slowly oxidized to the sesquioxide.;Converted to trihalide by chlorine or bromine at a red heat; not attacked by fluorine.
UNII
DMK383DSAC
UN Number
3089
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);1 Pa @ 2015 °C; 10 Pa @ 2223 °C; 100 Pa @ 2476 °C; 1 kPa @ 2790 °C; 10 kPa @ 3132 °C; 100 kPa @ 3724 °C;0 mmHg (approx)
MSDS
COA
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