Potassium citrate

Potassium citrate is a buffer, sequestrant and emulsifying salt, used to control acidity and in reduced-sodium products where potassium replaces sodium.

Where it is and isn’t permitted

Status of Potassium citrate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted21 CFR 184.1625retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Made by neutralising fermentation-derived citric acid with a potassium source.

  • Vegan
  • Vegetarian
InChIKey
PJAHUDTUZRZBKM-UHFFFAOYSA-K
PubChem
CID 2735208

Every name it appears under

48 recorded names. A label may use any of them.

CAS registry number

  • 6100-05-6

As it appears in regulation

  • Potassium citrate

Other names

  • 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, tripotassium salt, monohydrate
  • 2-Hydroxy-1,2,3-propanetricarboxylic Acid, Potassium Salt
  • ADV-7103 COMPONENT POTASSIUM CITRATE MONOHYDRATE
  • ADV7103 COMPONENT POTASSIUM CITRATE MONOHYDRATE
  • CCRIS 6543
  • Citrate, Potassium
  • Citric acid potassium salt monohydrate
  • Citric acid tripotassium monohydrate
  • Citric acid, tripotassium salt, monohydrate
  • Cymaclear
  • EE90ONI6FF
  • Effercitrate
  • Hydroxycitric acid (tripotassium hydrate)
  • INS NO.332(II)
  • INS-332(II)
  • K-cit-v
  • Kali Citricum
  • Kalii citras
  • Pot cit
  • Pot cit eff
  • Potassium 2-hydroxypropane-1,2,3-tricarboxylate hydrate
  • Potassium 2-hydroxypropane-1,2,3-tricarboxylate--water (3/1/1)
  • Potassium Citrate
  • Potassium citrate (USP)
  • POTASSIUM CITRATE EXTENDED RELEASE
  • Potassium citrate monohydrate
  • Potassium citrate tribasic monohydrate
  • Potassium citrate tribasic monohydrate, >=98% (GC/titration)
  • Potassium citrate tribasic monohydrate, cell culture tested
  • Potassium citrate tribasic monohydrate, meets USP testing specifications
  • Potassium citrate tribasic monohydrate, puriss., 99.5%
  • Potassium citrate tribasic monohydrate, purum p.a., >=99.0% (NT)
  • Potassium citrate tribasic monohydrate, SAJ special grade, >=99.0%
  • Potassium citrate tribasic monohydrate, tested according to Ph.Eur.
  • Potassium citrate tribasic monohydrate, Vetec(TM) reagent grade, 98%
  • Potassium citrate, United States Pharmacopeia (USP) Reference Standard
  • potassium citrate.H2O
  • Potassium-cit
  • Tripotassium 2-hydroxy-1,2,3-propanetricarboxylate monohydrate
  • tripotassium 2-hydroxypropane-1,2,3-tricarboxylate--water (1/1)
  • Tripotassium citrate monohydrate
  • tripotassium;citrate;hydrate
  • UROCIT-K
  • Urocit-K (TN)
  • Urocit-k 5meq

Systematic names

  • Potassium citrate tribasic monohydrate, meets analytical specification of Ph. Eur., BP, FCC, E332, 99-100.5% (calc with ref. to anhyd. subst.)

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/potassium-citrate.json