{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/potassium-bicarbonate",
  "slug": "potassium-bicarbonate",
  "name": "Potassium bicarbonate",
  "identifiers": {
    "e_number": "E501",
    "ins_number": "501(ii)",
    "cas_number": "298-14-6",
    "inchikey": "TYJJADVDDVDEDZ-UHFFFAOYSA-M",
    "pubchem_cid": 516893
  },
  "functional_class": "Acidity regulator",
  "summary": "Potassium bicarbonate is a raising agent and acidity regulator used where sodium is being reduced, and in winemaking to lower acidity.",
  "derivation_summary": "Made by passing carbon dioxide through potassium carbonate solution.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted",
      "status_label": "Permitted",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 184.1613",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1613"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 10,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "1999",
          "citation": {
            "ref": "CXS 192-1995 Table Three, INS 501(ii)",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.2.1.2",
            "name": "Fermented milks (plain), heat-treated after fermentation"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 631",
          "effective_from": "2024",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 01.2.1.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.4.1",
            "name": "Pasteurized cream (plain)"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: XS288",
          "effective_from": "2013",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 01.4.1",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.4.2",
            "name": "Sterilized and UHT creams, whipping and whipped creams, and reduced fat creams (plain)"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2013",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 01.4.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.8.2",
            "name": "Dried whey and whey products, excluding whey cheeses"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: XS331",
          "effective_from": "2023",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 01.8.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "09.2.2",
            "name": "Frozen battered fish, fish fillets and fish products, including molluscs, crustaceans, and echinoderms"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 41",
          "effective_from": "2013",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 09.2.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "13.1.1",
            "name": "Infant formulae"
          },
          "max_level": 2000,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 55 & 551",
          "effective_from": "2026",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 13.1.1",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "13.1.2",
            "name": "Follow-up formulae"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 551",
          "effective_from": "2026",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 13.1.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "13.1.3",
            "name": "Formulae for special medical purposes for infants"
          },
          "max_level": 2000,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 55 & 551",
          "effective_from": "2026",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 13.1.3",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "13.2",
            "name": "Complementary foods for infants and young children"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2013",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 501(ii), food category 13.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "298-14-6",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "Acid potassium carbonate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Armicarb",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CARBONIC ACID, MONOPOTASSIUM SALT",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Carbonic acid, potassium salt (1:1)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 3510",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CHKO3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E 501(ii)",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Effer-K",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K 10 mEq Cherry Vanilla",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K 10 mEq Unflavored",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K 20 mEq Orange Cream",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K 20 mEq Unflavored",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K Cherry Berry",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K Lemon Citrus",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K Orange",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Effer-K Unflavored",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 073508",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HM5Z15LEBN",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS NO.501(II)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS-501(II)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "K-vescent (TN)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kafylox",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kaligreen",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "KHCO3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "KLOR-Con/EF",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Milstop",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monopotassium carbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Pot eff",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potasium bicarbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium acid carbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium bicabonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium bicarbonat",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium bicarbonate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Potassium bicarbonate (USP)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium bicarbonate, ACS grade",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium bicarbonate, Trace metals grade 99.98%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium hydogencarbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium hydrocarbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium hydrogen carbonate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "potassium hydrogen-carbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Potassium hydrogencarbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassium;hydron;carbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "POTASSIUMBICARBONATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "PotassiumBicarbonate-13C",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "potassiumhydrogencarbonate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Purple k",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "TowerX Effervescent Potassium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E501",
      "type": "e_number",
      "source": "openfoodtox"
    },
    {
      "name": "501(ii)",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "Potassium;hydrogen carbonate",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Potassium bicarbonate",
      "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"
    },
    {
      "key": "gsfa",
      "name": "Codex General Standard for Food Additives (CXS 192-1995)",
      "publisher": "Codex Alimentarius Commission (FAO/WHO)",
      "licence": "FAO terms — non-commercial use with attribution",
      "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/",
      "retrieved_at": "2026-09-07T07:54:15.059Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Potassium bicarbonate\", https://foodadditiveindex.com/additives/potassium-bicarbonate. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.642Z"
}