{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/sodium-hydrogen-sulfate",
  "slug": "sodium-hydrogen-sulfate",
  "name": "Sodium hydrogen sulfate",
  "identifiers": {
    "e_number": null,
    "ins_number": "514(ii)",
    "cas_number": "7681-38-1",
    "inchikey": "WBHQBSYUUJJSRZ-UHFFFAOYSA-M",
    "pubchem_cid": 516919
  },
  "functional_class": "Acidity regulator",
  "summary": "Sodium hydrogen sulfate, or sodium bisulfate, is an acidity regulator — a dry acid, used where a powder is needed rather than a liquid.",
  "derivation_summary": "Produced by reacting sodium chloride or sulfate with sulfuric acid. Despite the similar name it is not a sulphite and does not carry the sulphite declaration requirement.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "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": []
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 2,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2012",
          "citation": {
            "ref": "CXS 192-1995 Table Three, INS 514(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: 630",
          "effective_from": "2024",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 514(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"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "7681-38-1",
      "type": "cas",
      "source": "openfoodtox"
    },
    {
      "name": "BIF",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Bisulfate of soda",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "BU8V88OWIQ",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 742",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 073201",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Fanal",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "GBS",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HNaO4S",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS NO.514(II)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS-514(II)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monosodium hydrogen sulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monosodium sulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "NaHSO4",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Natriumbisulfat",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Niter cake",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Nitre cake",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium acid sulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "sodium bi sulphate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium bisulfate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Sodium bisulfate anhydrous",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium bisulfate pearls",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium bisulfate, fused",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium bisulfate, solid(DOT)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium bisulphate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "SODIUM HYDROGEN SULFATE",
      "type": "common",
      "source": "gsfa"
    },
    {
      "name": "Sodium hydrogen sulfate (NaHSO4)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium hydrogen sulfate, anhydrous",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium hydrogen sulfate, solid (DOT)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "sodium hydrogen sulphate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "sodium hydrogen-sulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "sodium hydrogensulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium hydrogensulphate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium hydrosulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SODIUM SULFATE [WHO-DD]",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium sulfate, NaHSO4",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodiumbisulfate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sulfuric acid, monosodium salt",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sulfuric acid, sodium salt (1:1)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sulfuric acid, sodiumsalt (1:1)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WC-Klosettreiniger",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WC-Perfect",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WC-Super",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "514(ii)",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "Sodium;hydrogen sulfate",
      "type": "iupac",
      "source": "openfoodtox"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "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, \"Sodium hydrogen sulfate\", https://foodadditiveindex.com/additives/sodium-hydrogen-sulfate. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.693Z"
}