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CAS 7778-80-5

CAS 7778-80-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7778-80-5

CAS 7778-80-5PubChem CID 24507

Potassium Sulfate

Potassium sulfate is an inorganic potassium salt and a potassium salt. — ChEBI

IUPAC name: dipotassium;sulfate

Molecular formula: K2O4S
Molecular weight: 174.26 g/mol
Exact mass: 173.87914262 Da
Topological polar surface area: 88.6 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 3
Defined stereocentres: 0

Also known as

Dipotassium sulfatePotassium sulphateSulfuric acid dipotassium saltArcanum duplicatumSulfuric acid, dipotassium saltKalium sulphuricumTartarus vitriolatusKali sulphuricum

16 more reported names

Potassium sulfate (K2(SO4))K2SO4Sulfuric acid potassium salt (1:2)1K573LC5TVPotassium (as sulfate)INS NO.515(I)INS-515(I)E-515(I)CHEBI:32036Pot sulfKali Sulph 3XKali Sulph 6XKali Sulph 12XKali Sulph 200XKALI SULPHRefChem:6485

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External database identifiers

ChEBI:CHEBI:32036
ChEMBL:CHEMBL2021424
EPA DTXSID:DTXSID6029701
PubMed:22954530

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7778-80-5

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How CAS 7778-80-5 is used on this site

CAS 7778-80-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7778-80-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.