CAS
7440-69-9 Purity
99%, 99.5%, 99.9%, 99.95%, 99.99%, 99.999%
7440-69-9 Purity
99%, 99.5%, 99.9%, 99.95%, 99.99%, 99.999%
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Palladium single crystal, 9-10mm (0.35-0.39in) dia, 50mm (2.0in) long, (100) orientation, ±2°
CAS
7440-05-3
Catalog Number
ACM7440053-3
Category
Pure Element Single Crystals
Molecular Weight
106.4g/mol
Molecular Formula
Pd
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Specification
Description
DryPowder, OtherSolid; OtherSolid; PelletsLargeCrystals, OtherSolid;Solid
IUPAC Name
palladium
Canonical SMILES
[Pd]
InChI
InChI=1S/Pd
InChI Key
KDLHZDBZIXYQEI-UHFFFAOYSA-N
Boiling Point
2963 °C
Melting Point
1554.9 °C;1554.9°C
Density
12.02 g/cu cm
Solubility
Soluble in aqua regia and fused alkalies; insoluble in organic acids
Appearance
Gray
Color/Form
Silver-white, ductile metal;Steel white;Silver-white metal; cubic
Complexity
0
Covalently-Bonded Unit Count
1
Decomposition
No decomposition. /from table/
EC Number
231-115-6
Exact Mass
105.90348g/mol
Formal Charge
0
Hazard Statements
H228
H-Bond Acceptor
0
H-Bond Donor
0
Heavy Atom Count
1
MDL Number
MFCD00011167
Monoisotopic Mass
105.90348g/mol
Other Experimental
Palladium is the lightest of the platinum group and very malleable and ductile when pure. It resists oxidation at ordinary temperatures. It absorbs a considerable amount of hydrogen gas. It is appreciably volatile at high temperatures. At red heat it is converted to the oxide.;Stable isotopes: (102)Pd, 1.02%; (1.4)Pd, 11.14%; (105)Pd, 22.23%; (106)Pd, 27.33%; (108)Pd, 26.46%; (110)Pd, 11.72%;Usual valency, 2,4; ionic radius, 65 pm, crystal structure, face-centered cubic; lattice constant, 389 pm; reflectance, 54%; thermal expansion, 11.11X10+6 °C-1; magnetic susceptibility, 5.23X10-6 cu cm/g; work function, 4.99 eV; Young's modulus, 1.24X10+8 kN/sq m; ultimate tensile strength, 180-200 MPa; Poisson's ratio, 0.39; Vicker's hardness, 40; temperature coefficient of resistance 3.8X10-3 K-1; electrical resistivity at 0 °C, 9.93 microohm-cm; thermal conductivity, 75 W/m K;Palladium is stable in air, even at elevated temperatures; shows no corrosion or tarnishing in hydrogen sulfide atmospheres.;Enthalpy of formation at 298.15 K: 378.2 kJ/mol (gas); molar heat capacity at 298.15 K: 26.0 J/mol K (crystal), 20.8 J/mol K (gas);Enthalpy of fusion: 16.74 kJ/mol at 1554.9 °C
Precautionary Statements
P210-P280-P240-P241-P370+P378
Rotatable Bond Count
0
Signal Word
Danger
True Density
12.02 g/cm³
UNII
5TWQ1V240M
UN Number
UN 3089 4.1 / PGII
Vapor Pressure
3.47 Pa (0.0260 mm Hg) at 1552 °C
Research Articles
In-situ Raman Spectroscopy Study of Electrooxidation Reaction on Palladium Single Crystal Surface
Palladium is a silver-white transition metal that is soft, has good ductility and plasticity, and can be forged, rolled and drawn. Bulk metal palladium can absorb a large amount of hydrogen, causing its volume to expand significantly, become brittle and even break into pieces.
Read More
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