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Record Information
Version4.0
StatusDetected and Quantified
Creation Date2012-09-08 14:59:35 UTC
Update Date2020-02-26 21:43:07 UTC
HMDB IDHMDB0029201
Secondary Accession Numbers
  • HMDB29201
Metabolite Identification
Common NameHafnium
DescriptionHafnium, also known as 72HF or hafnio, 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. Hafnium is possibly neutral. Outside of the human body, Hafnium is found, on average, in the highest concentration within a few different foods, such as common hazelnuts, black walnuts, and almonds and in a lower concentration in white cabbages, spinachs, and italian sweet red peppers. Hafnium has also been detected, but not quantified in, a few different foods, such as cucumbers, japanese pumpkins, and yellow zucchinis. This could make hafnium a potential biomarker for the consumption of these foods. Hafnium is a chemical element with the symbol Hafnium and atomic number 72. Hafnium is used in filaments and electrodes. Some semiconductor fabrication processes use its oxide for integrated circuits at 45 nm and smaller feature lengths. Some superalloys used for special applications contain hafnium in combination with niobium, titanium, or tungsten.
Structure
Data?1582753386
Synonyms
ValueSource
72HFChEBI
HafnioChEBI
HfChEBI
HafniumChEBI
Chemical FormulaHf
Average Molecular Weight178.49
Monoisotopic Molecular Weight179.94654876
IUPAC Namehafnium
Traditional Namehafnium
CAS Registry NumberNot Available
SMILES
[Hf]
InChI Identifier
InChI=1S/Hf
InChI KeyVBJZVLUMGGDVMO-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
Ontology
Disposition

Biological location:

Role

Biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot 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
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001i-0900000000-20275abb2ecde8545b76Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-0900000000-20275abb2ecde8545b76Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-0900000000-20275abb2ecde8545b76Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0900000000-d914b6f5dd563219ab6aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-0900000000-d914b6f5dd563219ab6aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-0900000000-d914b6f5dd563219ab6aSpectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Saliva
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
SalivaDetected and Quantified0.004 +/- 0.002 uMAdult (>18 years old)BothNormal
    • Zerihun T. Dame, ...
details
UrineDetected and Quantified0.00031 (0.00006-0.00110) umol/mmol creatinineAdult (>18 years old)Both
Normal
details
UrineDetected and Quantified0.00027 ± 0.00012 umol/mmol creatinineAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB003774
KNApSAcK IDNot Available
Chemspider ID22422
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkHafnium
METLIN IDNot Available
PubChem Compound23986
PDB IDNot Available
ChEBI ID33343
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available