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Tripotassium citrate

E332 · CAS 7778-49-6 · 0/100 · High conf.

Also registered as 2 other CAS numbers

1470286-67-9 · 866-84-2

Tripotassium citrate chemical structure

Concern score

0/100Low concern — well-established and permitted without restriction (FDA GRAS; JECFA ADI not specified; CIR safe as used; EU food additive; EU CosIng).
High confidence

Tripotassium citrate in plain language

What it is

On cosmetic ingredient lists it appears as “Potassium citrate”.

Also known as Potassium citrate · Potassium citrate anhydrous · Tripotassium 2-hydroxypropane-1,2,3-tricarboxylate · 2-Hydroxy-1,2,3-propanetricarboxylic acid tripotassium salt · Acalka · Tri-potassium citrate

Show all 20 names

Citrate de tripotassium · E 332 (ii) · K citrate · Kajos · Kaliksir · Litocit · Porekal · Potassium Cltrate · Potassium tribasic citrate · Potassiumcitrate · Seltz-K · Urocit K · kalii citras · potassium citrate (anhydrous)

What it does

Used in cosmetics as a pH buffer and a chelating agent.

  • Buffering
  • Chelating
  • Chelating agent
  • pH adjuster
  • Fragrance
Is it a concern?
Low concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

As a food additive

E-number
E332
Used in food as
  • Acidity regulator
  • Emulsifying salt
  • Sequestrant
EU safety status

Authorised in the EU without a numerical limit (Group I); EFSA re-evaluation not yet published.

It never counts as an additive of concern in a product’s food rating.

Regulation (EC) No 1333/2008, Annex II Part C(1) Group I (quantum satis)

Why it's flagged

EPA CPDat observed this chemical in 20 composition records across product categories including Specialty occupational products, Raw materials, Laboratory supplies.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Tripotassium citrate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Pharma
  • Food
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 20 composition records across product categories including Specialty occupational products, Raw materials, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Chelating agent, pH regulating agent, Pharmaceutical.
    • EPA CPDat observed this chemical in 20 composition records across product categories including Specialty occupational products, Raw materials, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Chelating agent, pH regulating agent, Pharmaceutical.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Tripotassium citrate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Tripotassium citrate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated January 7, 2008

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Tripotassium citrate in a product composition. These are source records, not Greenveil catalog products.

Source records

20

Named organisations

6

Specialty occupational productsRaw materialsLaboratory suppliesFood and drugCleaning products and household care

Typical roles

BufferingChelatingChelating agentpH adjusterFragrance
See products using Tripotassium citrate →

Catalog

Found in these products

Cosmetic and personal-care products that list Tripotassium citrate are shown first. Their ingredient lists include Tripotassium citrate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 89 →Find products without it →