cobalto

Also known as Co, element 27, ₂₇Co

elemento chimico con numero atomico 27 e simbolo Co

OverviewAI-generated

Cobalt is a chemical element with the symbol Co and atomic number 27. It has a mass of 58.933194 and an electron configuration of [Ar] 3d⁷ 4s². The element exhibits oxidation states of -1, 1, 2, and 3. Its electronegativity is 1.88, and its ionic radius is 0.90.

The substance has a density of 8.92, a melting point of 2719, and a boiling point of 5612. Its vapor pressure is 0. Cobalt was discovered in 1735. It is referenced by 2,397 other encyclopedia articles. The Unicode character for the element is 鈷.

Synthesized by Vinony from 32 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula: Co
Molecular weight: 58.93319 g/mol
IUPAC name: cobalt
SMILES: [Co]
InChIKey: GUTLYIVDDKVIGB-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

75,136 papers

Cobalt.ReviewJournal of toxicology. Clinical toxicology · 1999Barceloux DGDOI: 10.1081/clt-100102420
Intolerability of cobalt salt as erythropoietic agent.ReviewDrug testing and analysis · 2014Ebert B, Jelkmann WDOI: 10.1002/dta.1528
Mutagenicity, carcinogenicity and teratogenicity of cobalt metal and cobalt compounds.ReviewMutation research · 1990Léonard A, Lauwerys RDOI: 10.1016/0165-1110(90)90029-b
Bioelution, Bioavailability, and Toxicity of Cobalt Compounds Correlate.Toxicological sciences : an official journal of the Society of Toxicology · 2020Danzeisen R, Williams DL, Viegas V et al.DOI: 10.1093/toxsci/kfz249
Cobalt-substituted cytochrome P-450cam.The Journal of biological chemistry · 1981Wagner GC, Gunsalus IC, Wang MY et al.
Cobalt-substituted horseradish peroxidase.The Journal of biological chemistry · 1977Wang MY, Hoffman BM, Hollenberg PF
Clustered Cobalt Nanodots Initiate Ferroptosis by Upregulating Heme Oxygenase 1 for Radiotherapy Sensitization.Small (Weinheim an der Bergstrasse, Germany) · 2023Zhao J, Chen Y, Xiong T et al.DOI: 10.1002/smll.202206415
Cobalt and possible oxidant-mediated toxicity.The Science of the total environment · 1994Nemery B, Lewis CP, Demedts MDOI: 10.1016/0048-9697(94)90129-5

via PubMed

Wikidata facts

Instance of: chemical element
Subclass of: simple substance
Part of: group 9
Named after: kobold
Material used: safflorite
Mass: 58.933194
Image: Kobalt electrolytic and 1cm3 cube.jpg

Show 27 more facts

Commons gallery: Cobalt
oxidation state: 5
element symbol: Co
topic's main category: Category:Cobalt
Commons category: Cobalt
atomic number: 27
NIOSH Pocket Guide ID: 0146
density: 8.92
has effect: cobalt poisoning
immediately dangerous to life or health: 20
melting point: 1495
boiling point: 2927
vapor pressure: 0
described by source: Explanatory Dictionary of the Living Great Russian Language
time-weighted average exposure limit: 0.1
time of discovery or invention: 1735-00-00
NCI Thesaurus ID: C382
subject has role: allergen
has characteristic: ferromagnetism
discoverer or inventor: Georg Brandt
WordLift URL: data.thenextweb.com/tnw/entity/cobalt
Unicode character: 鈷
electronegativity: 1.88
ionic radius: 0.55
electron configuration: [Ar] 3d⁷ 4s²
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
associated hazard: cobalt poisoning

Sources (9)

via Wikidata · CC0

Article · Italiano

Il cobalto è l'elemento chimico di numero atomico 27 e il suo simbolo è Co. È il primo elemento del gruppo 9 del sistema periodico, facente parte del blocco d, ed è quindi un elemento di transizione. Nella vecchia nomenclatura ha costituito, insieme al ferro, l'elemento precedente, e al nichel, il successivo, la triade del gruppo VIII del sistema periodico, detto anche gruppo del ferro; allo stato metallico condivide con essi il ferromagnetismo, sebbene meno spiccato che nel ferro. Il nome cobalto deriva probabilmente dal greco kobalos, traducibile con folletto (ma vedi anche coboldo), "kobolt" in tedesco, dato dai minatori tedeschi che incolpavano i folletti di far loro trovare un metallo inutile anziché l'argento.

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