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Chemical substance record

Nickel

7440-02-0Ni58.693 g/mol
ElementChEBI source record

Chemical element (nickel group element atom) with atomic number 28. — ChEBI

Safety references

Safety documents & references

1 indexed references
JP · NITE

Government GHS classification

- / R-157 · FY2014

View classification

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Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.

Identity & molecular properties

Source-linked values
CAS number7440-02-0ChEBI ↗
Molecular formulaNiChEBI ↗
Molar mass58.693 g/molChEBI ↗
Monoisotopic mass57.93534 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:28112ChEBI ↗

Cross-source molecular data

PubChem
Molar mass58.693 g/molPubChem ↗
Exact mass57.935342 DaPubChem ↗

PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.

Names & structural identifiers

Copy any identifier
nickel atom
nickel
PXHVJJICTQNCMI-UHFFFAOYSA-N
[Ni]
InChI=1S/Ni

Names & synonyms

nickel

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

micronutrientepitope

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Safety classification · Japan

NITE / Japanese government
Japan · FY2014 source classification
Nickel · - / R-157

Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.

Read the original NITE classification

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.0170378 mol

Uses 58.693 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Ni
Nickel · 1 atom
100.00%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:28112

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

NCBI PubChem · CID 935 · retrieved 2026-09-27

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.