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CAS 7778-80-5 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 3702915/10/2010

POTASSIUM SULFATE

Potassium sulphate

POTASSIUM SULFATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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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

Open full PubChem record PubChem annotations 3D structure image

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.

Inventory details for POTASSIUM SULFATE

INCI name

POTASSIUM SULFATE

Ph. Eur. name

kalii sulfuricum

Description

Potassium sulphate

Record provenance

Inventory reference: 37029
Imported identity: POTASSIUM SULFATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for POTASSIUM SULFATE

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Key data

CAS

7778-80-5

231-915-5

Restriction

—

Function

VISCOSITY CONTROLLING: Increasing or decreasing the viscosity (thickness) of cosmetics.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#22764 · POTASSIUM SULFATE

Ingredients with overlapping formulation functions

POTASSIUM PALM KERNELATECLEANSING, VISCOSITY CONTROLLING

POTASSIUM POLYACRYLATEVISCOSITY CONTROLLING

POTASSIUM RAPESEEDATECLEANSING, SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

POTASSIUM SOYATECLEANSING, SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

POTATO STARCH DODECENYLSUCCINATEVISCOSITY CONTROLLING

POTATO STARCH MODIFIEDVISCOSITY CONTROLLING

PPG-14 LAURETH-60 HEXYL DICARBAMATEVISCOSITY CONTROLLING

PPG-14 LAURETH-60 ISOPHORYL DICARBAMATEVISCOSITY CONTROLLING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How POTASSIUM SULFATE appears in the CosIng inventory

The CosIng inventory lists POTASSIUM SULFATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

POTASSIUM SULFATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

POTASSIUM SULFATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, POTASSIUM SULFATE carries the following function designation(s):

VISCOSITY CONTROLLING

CAS 7778-80-5 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for POTASSIUM SULFATE

This page reproduces the CosIng inventory entry for POTASSIUM SULFATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research POTASSIUM SULFATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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