Skip to content
[P]pubcas
Independent chemical reference Compare
Home/Chemicals/10026-24-1
Chemical substance record

Cobalt(2+) sulfate heptahydrate

10026-24-1Co.7H2O.O4S281.101 g/mol
Salt and Compound WithChEBI source record

A hydrate that is the heptahydrate form of cobalt(2+) sulfate. — ChEBI

Safety references

Safety documents & references

1 indexed references
JP · NITE

Government GHS classification

R06-C-119-JNIOSH · FY2024

View classification

Find a product-specific SDS

Search SDS PDFs Sigma-Aldrich Thermo Fisher

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 number10026-24-1ChEBI ↗
Molecular formulaCo.7H2O.O4SChEBI ↗
Molar mass281.101 g/molChEBI ↗
Monoisotopic mass280.95888 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:91244ChEBI ↗

Names & structural identifiers

Copy any identifier
cobalt(2+) sulfate heptahydrate
cobalt(2+) sulfate--water (1/7)
MEYVLGVRTYSQHI-UHFFFAOYSA-L
O.O.O.O.O.O.O.O=S(=O)([O-])[O-].[Co+2]
InChI=1S/Co.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

Names & synonyms

cobalt(2+) sulfate--water (1/7)

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

Classification & relationships

ChEBI ontology
hydrateChEBI parent class · 35505 ↗
hydrate

Roles recorded in ChEBI

genotoxincarcinogenic agent

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 · FY2024 source classification
Cobalt(II) sulfate heptahydrate · R06-C-119-JNIOSH
EndpointReported classification
CarcinogenicityCategory 1B

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
0.00355744 mol

Uses 281.101 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Co
Cobalt · 7 atoms
78.34%
O
Oxygen · 5 atoms
15.19%
S
Sulfur · 1 atom
6.09%
H
Hydrogen · 2 atoms
0.38%

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
p53 induction as a genotoxic test for twenty-five chemicals undergoing in vivo carcinogenicity testing. ↗Environmental health perspectives · 1999 Oct · PMID 10504146
Systemic vascular disease in male B6C3F1 mice exposed to particulate matter by inhalation: studies conducted by the National Toxicology Program. ↗Toxicologic pathology · 2002 Jul-Aug · PMID 12187935
Search PubMed Google Scholar

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:91244

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

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.

How this record was assembledSuggest a correction