Record Information
Version1.0
Creation Date2009-03-22 20:37:43 UTC
Update Date2026-04-05 20:28:36 UTC
Accession NumberCHEM000588
Identification
Common NameCobalt(II) iodide
ClassSmall Molecule
DescriptionCobalt(II) iodide is a iodide of cobalt. It is used to detect the presence of water. Cobalt is a metallic element with the atomic number 27. It is found naturally in rocks, soil, water, plants, and animals. In small amounts cobalt is an essential element for life, as it is part of vitamin B12. However, excess exposure is known to exhibit toxic effects. (2, 3, 4)
Contaminant Sources
  • IARC Carcinogens Group 2B
  • T3DB toxins
Contaminant Type
  • Cobalt Compound
  • Industrial/Workplace Toxin
  • Inorganic Compound
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
SynonymsNot Available
Chemical FormulaCoI2
Average Molecular Mass312.742 g/mol
Monoisotopic Mass312.742 g/mol
CAS Registry Number15238-00-3
IUPAC Namediiodocobalt
Traditional Namediiodocobalt
SMILESI[Co]I
InChI IdentifierInChI=1S/Co.2HI/h;2*1H/q+2;;/p-2
InChI KeyAVWLPUQJODERGA-UHFFFAOYSA-L
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as transition metal iodides. These are inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is a transition metal.
KingdomInorganic compounds
Super ClassMixed metal/non-metal compounds
ClassTransition metal salts
Sub ClassTransition metal iodides
Direct ParentTransition metal iodides
Alternative Parents
Substituents
  • Transition metal iodide
  • Inorganic salt
Molecular FrameworkNot Available
External DescriptorsNot Available
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
AppearanceYellow or black crystals.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilitySolubility in water: 67.0 g/100 mL
Predicted Properties
PropertyValueSource
logP1.47ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity26.68 m³·mol⁻¹ChemAxon
Polarizability13.13 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, Positivesplash10-03di-0009000000-b1d2bdd28a67e00e6fdaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-0009000000-b1d2bdd28a67e00e6fdaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03di-0009000000-b1d2bdd28a67e00e6fdaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-0009000000-1f85fee565604d316603Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-03di-0009000000-1f85fee565604d316603Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-03di-0009000000-1f85fee565604d316603Spectrum
Toxicity Profile
Route of ExposureInhalation (2) ; oral (2) ; dermal (2)
Mechanism of ToxicityCobalt is believed to exhibit its toxicity through a oxidant-based and free radical-based processes. It produces oxygen radicals and may be oxidized to ionic cobalt, causing increased lipid peroxidation, DNA damage, and inducing certain enzymes that lead to cell apoptosis. Cobalt has also been shown to block inorganic calcium channels, possibly impairing neurotransmission. Cobalt can also chelate lipoic acids, impairing oxidation of pyruvate or fatty acids. In addition, cobalt may inhibit DNA repair by interacting with zinc finger DNA repair proteins, and has also been shown to inhibit heme synthesis and glucose metabolism. Cobalt may activate specific helper T-lymphocyte cells and interact directly with immunologic proteins, such as antibodies (IgA and IgE) or Fc receptors, resulting in immunosensitization. (2)
MetabolismCobalt is absorbed though the lungs, gastrointestinal tract, and skin. Since it is a component of the vitamin B12 (cyanocobalamin), it is distributed to most tissues of the body. It is transported in the blood, often bound to albumin, with the highest levels being found in the liver and kidney. Cobalt is excreted mainly in the urine and faeces. (2)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)2B, possibly carcinogenic to humans. (6)
Uses/SourcesCobalt(II) iodide is used to detect the presence of water. (4)
Minimum Risk LevelChronic Inhalation: 0.0001 mg/m3 (5) Intermediate Oral: 0.01 mg/kg/day (5)
Health EffectsExposure to high amount of cobalt can cause heart, lung, kidney, and liver damage. Skin contact is known to result in contact dermatitis. Cobalt may also have mutagenic and carcinogenic effects. (2, 3)
SymptomsCobalt inhalation can cause asthma-like breathing problems. Skin contact is known to result in contact dermatitis, which is characterized by irritation and rashes. Ingesting large amounts of cobalt may cause nausea and vomiting. (7)
TreatmentTreatment of cobalt poisoning is symptomatic. (2)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkCobalt(II) iodide
Chemspider IDNot Available
ChEBI IDNot Available
PubChem Compound ID84850
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available