Record Information
Version1.0
Creation Date2009-03-06 18:58:14 UTC
Update Date2026-04-05 19:22:34 UTC
Accession NumberCHEM000163
Identification
Common NamePalladium
ClassSmall Molecule
DescriptionPalladium is a rare and lustrous silvery-white metal. Palladium has the lowest melting point and is the least dense of platinum group metals. The primary use for palladium is in catalytic converters for the automotive industry.
Contaminant Sources
  • FooDB Chemicals
  • HMDB Contaminants - Urine
  • HPV EPA Chemicals
  • T3DB toxins
Contaminant Type
  • Industrial/Workplace Toxin
  • Inorganic Compound
  • Metabolite
  • Metal
  • Natural Compound
  • Nickel Compound
  • Palladium Compound
Chemical Structure
Thumb
Synonyms
ValueSource
46pdChEBI
PaladioChEBI
PdChEBI
Chemical FormulaPd
Average Molecular Mass106.420 g/mol
Monoisotopic Mass105.903 g/mol
CAS Registry Number7440-05-03
IUPAC Namepalladium
Traditional Namepalladium
SMILES[Pd]
InChI IdentifierInChI=1S/Pd
InChI KeyKDLHZDBZIXYQEI-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as homogeneous transition metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a transition metal atom.
KingdomInorganic compounds
Super ClassHomogeneous metal compounds
ClassHomogeneous transition metal compounds
Sub ClassNot Available
Direct ParentHomogeneous transition metal compounds
Alternative ParentsNot Available
Substituents
  • Homogeneous transition metal
Molecular FrameworkNot Available
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceSilver-white metal.
Experimental Properties
PropertyValue
Melting Point1554.9°C
Boiling Point3167°C (5732.6°F)
SolubilityNot Available
Predicted Properties
PropertyValueSource
logP0ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity0 m³·mol⁻¹ChemAxon
Polarizability1.78 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0900000000-cfbea5880bde44122df5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-0900000000-cfbea5880bde44122df5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-0900000000-cfbea5880bde44122df5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0900000000-e5a383c648e39dd19c11Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-0900000000-e5a383c648e39dd19c11Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0udi-0900000000-e5a383c648e39dd19c11Spectrum
Toxicity Profile
Route of ExposureInhalation (1) ; oral (1) ; dermal (1)
Mechanism of ToxicityPalladium ions are able to inhibit most major cellular fuctions. They form strong complexes with both inorganic and organic ligands, substitute essential ions, bind to amino acids and various enzymes including creatine kinase and prolyl hydroxylase, and interact with functional groups of other macromolecules such as DNA leading to strand breakage. (3)
MetabolismPalladium may be absorbed through oral, dermal, and inhalation exposure. Once in the body it distributes to the kidney, liver, spleen, lymph nodes, adrenal gland, lung and bone. Palladium and its metabolites are excreted in the urine and faeces. (1)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesPalladium is found mainly in catalytic converters and jewelry. It is also found in many electronics including computers, mobile phones, multi-layer ceramic capacitors, component plating, low voltage electrical contacts, and SED/OLED/LCD televisions. Palladium is also used in dentistry, medicine, hydrogen purification, chemical applications, and groundwater treatment. Palladium plays a key role in the technology used for fuel cells, which combines hydrogen and oxygen to produce electricity, heat and water. (2)
Minimum Risk LevelNot Available
Health EffectsContact with palladium may cause palladium sensitivity and allergy. Animal studies have shown that palladium may damage the liver and kidney. (3)
SymptomsSkin contact with palladium may cause contact dermatitis, erythema, and oedema. (3)
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0013670
FooDB IDFDB030040
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkPalladium
Chemspider ID22380
ChEBI ID33363
PubChem Compound ID23938
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSLink
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=25097477
2. Hermansen JE, Badsberg JH, Kristensen T, Gundersen V: Major and trace elements in organically or conventionally produced milk. J Dairy Res. 2005 Aug;72(3):362-8. doi: 10.1017/S0022029905000968.
3. A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation)