{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/potassium-iodide",
  "slug": "potassium-iodide",
  "name": "Potassium iodide",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": "7681-11-0",
    "inchikey": "NLKNQRATVPKPDG-UHFFFAOYSA-M",
    "pubchem_cid": 4875
  },
  "functional_class": null,
  "summary": "Potassium iodide is the additive behind iodised salt, one of the most effective public-health measures ever taken with a food additive. Iodine deficiency was the leading preventable cause of intellectual disability before salt iodisation.",
  "derivation_summary": "Produced by reacting iodine with potassium hydroxide. It oxidises and is slowly lost from salt in warm, humid conditions, which is why iodate is preferred in some climates.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 2,
      "provisions": [
        {
          "status": "permitted_with_conditions",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 172.375",
            "url": "https://www.ecfr.gov/current/title-21/section-172.375"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        },
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 184.1634",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1634"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "not_listed",
      "status_label": "Not listed",
      "note": "Does not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.",
      "provision_count": 0,
      "provisions": []
    }
  ],
  "names": [
    {
      "name": "7681-11-0",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "Antistrumin",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Asmofug E",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Bestmade Natural Products Kali Iodatum",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Bestmade Natural Products Potassium Iodide (Kali Iod)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 694",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 8168",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dipotassium diiodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 075701",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Gold etchant, standard",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 5040",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iodide, Potassium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iodine (as potassium iodide)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iodine (as potassium)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iodure de potassium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iosat",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Jodetten depot",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Jodid ratiopharm",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Joptone",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kali iodatum",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kali Iodatum 1X",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kali iodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kalii iodidum",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kalium iodatum",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kaliumiodid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kaliumjodid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kisol",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Knollide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Mono Jod",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Pima",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Pot iodide ammoniat",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potasium iodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium diiodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium iodid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Potassium iodide (K(I2))",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide (K2I2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide (K3I3)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide (KI)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide ,meet Ch.P",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide ACS grade",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium Iodide Oral Solution",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium Iodide Tablet",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide, 99.5%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium iodide, ultra dry",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium monoiodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium salt of hydriodic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassiumiodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Radiban",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SSKI",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyro Block",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyro-Block",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyroblock",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyroblock (TN)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyroprotect",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyrosafe",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Thyroshield",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Tripotassium triiodide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WLN: KA I",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium;iodide",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Potassium iodide",
      "type": "label",
      "source": "ecfr"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "key": "ecfr",
      "name": "Electronic Code of Federal Regulations, Title 21",
      "publisher": "U.S. Government Publishing Office / National Archives",
      "licence": "Public domain",
      "url": "https://www.ecfr.gov/api/versioner/v1/full/2026-08-31/title-21.xml",
      "retrieved_at": "2026-09-07T18:25:51.549Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Potassium iodide\", https://foodadditiveindex.com/additives/potassium-iodide. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.651Z"
}