Potassium permanganate

CAS 7722-64-7

Listed as an emulsifier, an anticaking agent and a formulation aid by the US.

Listed as emulsifiers (US) · anticaking agents (US) · formulation aids (US) · starch-modifying agents (CA)
Chemical structure of Potassium permanganate, from PubChem compound 516875
Structure from PubChem CID 516875 (National Library of Medicine, public domain). A depiction of one compound: where a listing covers a family, or a substance has no single structure, this page shows none.

A strong oxidant, deep purple in solution, used in food processing as a treatment agent — in starch modification and water treatment — rather than as an ingredient.

Where it is and isn’t permitted

Status of Potassium permanganate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
Australia and New ZealandFood Standards Australia New ZealandNo listed food uses foundThis site has not matched this substance to any food use on this jurisdiction’s list of authorised food additives. A food additive may be used only in foods that list names. Flavourings, enzymes, processing aids and added nutrients are regulated separately and do not appear on it.
CanadaHealth CanadaPermitted, with conditions

highest permitted level 50 mg/kg

In: Starch used in the manufacture of modified starch. Purpose: Starch-modifying agent. Limit: 50 ppm, calculated as manganese.

Health Canada, List of Permitted Starch-Modifying Agents (List 13), item P.3retrieved 2026-10-17
European UnionEuropean Commission / EFSANo listed food uses foundThis site has not matched this substance to any food use on this jurisdiction’s list of authorised food additives. A food additive may be used only in foods that list names. Flavourings, enzymes, processing aids and added nutrients are regulated separately and do not appear on it.
Great BritainFood Standards Agency / Food Standards ScotlandNo listed food uses foundThis site has not matched this substance to any food use on this jurisdiction’s list of authorised food additives. A food additive may be used only in foods that list names. Flavourings, enzymes, processing aids and added nutrients are regulated separately and do not appear on it.
JapanConsumer Affairs AgencyNo listing matchedThis site imports only Japan’s list of designated additives (Appended Table 1 to the Regulations for Enforcement of the Food Sanitation Act), matched by English name. Existing additives, natural flavouring agents and ordinary foods used as additives are permitted outside that list and are not imported, so an empty row does not show that Japan does not permit the substance.
South KoreaMinistry of Food and Drug SafetyNo listing matchedThis site imports Part III of South Korea’s Standards and Specifications for Food Additives, matched by CAS number, then INS number, then exact name. Mixed preparations and sanitisers are not imported, and an entry whose identifiers disagreed with a page’s is held for review, so an empty row does not show that South Korea does not permit the substance.
United StatesFood and Drug AdministrationNot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

How much is permitted

A listing usually limits the quantity as well as the food. Only one of the forms that takes is a figure: quantum satis and good manufacturing practice permit the amount the technological effect requires and no more, which is a limit rather than the absence of one. Figures below are the range across every food category this page is listed in, and categories differ between regulators — see how much is permitted.

Canada50 mg/kg1 numeric limit

What it is made from

Made from manganese dioxide by oxidation to the permanganate.

  • Vegan
  • Vegetarian

Compare other additives on the dietary indexes.

CAS registry number
7722-64-7
InChIKey
VZJVWSHVAAUDKD-UHFFFAOYSA-N
PubChem
CID 516875

Every name it appears under

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

CAS registry number

  • 7722-64-7

Other names

  • 0.02M Potassium permanganate
  • Algae-K
  • Analytical Volumetric Solution Potassium Permanganate Solution 0.02M
  • Argucide
  • Cairox
  • Caswell No. 699
  • CCRIS 5561
  • Chameleon mineral
  • Condy's crystals
  • Diversey Diversol CX with Arodyne
  • Diversey Diversol CXU
  • En-potab
  • EPA Pesticide Chemical Code 068501
  • Hilco #88
  • HSDB 1218
  • Icc 237 Disinfectant, Sanitizer, Destainer, and Deodorizer
  • Insta-perm
  • Kali permanganicum
  • Kaliumpermanganat
  • KMnO4
  • Manganese potassium oxide (KMnO4)
  • Permanganate de potassium
  • Permanganate of potash
  • Permanganate, Potassium
  • Permanganato potasico
  • Permanganic acid (HMnO4), potassium salt
  • Permanganic acid (HMnO4), potassium salt (1:1)
  • Permanganic acid potassium salt
  • Permitabs
  • potasiumpermanganate
  • Potassio (permanganato di)
  • Potassium (permanganate de)
  • Potassium manganate(VII)
  • Potassium Permanganate
  • Potassium permanganate (JP18/USP)
  • Potassium permanganate (KMnO4)
  • Potassium permanganate solution, 1.25N
  • Potassium permanganate, 97%
  • Potassium permanganate, <=150 mum particle size, 97%
  • Potassium permanganate, ACS reagent
  • Potassium permanganate, ACS reagent, >=99.0%
  • Potassium permanganate, ACS reagent, >=99.0%, low in mercury
  • Potassium permanganate, BioUltra, >=99.0% (RT)
  • Potassium permanganate, JIS special grade, >=99.3%
  • Potassium permanganate, low in mercury (max. 0,005 ppm Hg)
  • Potassium permanganate, LR, >=99%
  • Potassium permanganate, meets USP testing specifications
  • Potassium permanganate, p.a., 99.0%
  • Potassium permanganate, p.a., ACS reagent, reag. ISO, 99.0%
  • Potassium permanganate, SAJ first grade, >=99.3%
  • Potassium permanganate, solution
  • Potassium permanganate, tested according to Ph.Eur.
  • Potassium tetrakis(oxido)manganate(1-)
  • Potassium tetraoxidomanganate(1-)
  • potassiumpermanganate
  • Pure Light E 2
  • Solo San Soo
  • trioxo(potassiooxy)manganese
  • Walko Tablets

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 rather than machine-read, and none has been written for this substance yet.

Common questions

Assembled from what is above, in the words the questions are usually asked in. Each answer is the same statement the relevant section makes, with the same citations behind it.

What is Potassium permanganate?
A strong oxidant, deep purple in solution, used in food processing as a treatment agent — in starch modification and water treatment — rather than as an ingredient.
What is Potassium permanganate used for in food?
It is listed as an emulsifier, an anticaking agent and a formulation aid — the role the US assigns it. This page shows every function each regulator records, with the citation for each.
Where is Potassium permanganate permitted?
Of the seven regulators this site reads, Canada permits it. Each permission is for named foods at named levels, not a blanket one; the table on this page gives them with citations.
Is Potassium permanganate vegan?
Yes. Potassium permanganate is not derived from animals, and is suitable for vegetarians. This page says what it is made from and how.

Sources for this page

  • ca retrieved 2026-10-17

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

Machine-readable: a JSON record of this additive is given on request —how to ask for access.

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