{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/magnesium-silicate",
  "slug": "magnesium-silicate",
  "name": "Magnesium silicate",
  "identifiers": {
    "e_number": "E553a",
    "ins_number": "553(i)",
    "cas_number": "1343-88-0",
    "inchikey": "ZADYMNAVLSWLEQ-UHFFFAOYSA-N",
    "pubchem_cid": 72941442
  },
  "functional_class": "Anticaking agent",
  "summary": "Magnesium silicate is an anticaking agent used in powdered foods, table salt and confectionery.",
  "derivation_summary": "Precipitated by reacting a magnesium salt with sodium silicate.",
  "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 182.2437",
            "url": "https://www.ecfr.gov/current/title-21/section-182.2437"
          },
          "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": 9,
      "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 553(i)",
            "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": "01.5.1",
            "name": "Milk powder and cream powder (plain)"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 544 & 549",
          "effective_from": "2023",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 01.5.1",
            "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": "01.6.1",
            "name": "Unripened cheese"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 488, 563, XS273, XS275",
          "effective_from": "2023",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 01.6.1",
            "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": "01.6.2.1",
            "name": "Ripened cheese, includes rind"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 459, 461, 502, XS208, XS274, XS276, XS277, XS278",
          "effective_from": "2021",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 01.6.2.1",
            "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": "01.8.2",
            "name": "Dried whey and whey products, excluding whey cheeses"
          },
          "max_level": 10000,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: XS331",
          "effective_from": "2023",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), 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": "11.1.2",
            "name": "Powdered sugar, powdered dextrose"
          },
          "max_level": 15000,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 56, 465",
          "effective_from": "2019",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 11.1.2",
            "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": "12.1.1",
            "name": "Salt"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2006",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 12.1.1",
            "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": "12.1.2",
            "name": "Salt substitutes"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2015",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 12.1.2",
            "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": "12.2.1",
            "name": "Herbs and spices"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": "GSFA notes: 534, XS326 & XS351",
          "effective_from": "2025",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 553(i), food category 12.2.1",
            "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": "1343-88-0",
      "type": "cas",
      "source": "openfoodtox"
    },
    {
      "name": "14987-04-3",
      "type": "cas",
      "source": "openfoodtox"
    },
    {
      "name": "Ambosol",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Avibest",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesorb",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesorb 90",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesorb No. 40",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 533",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Celkate T 21",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chooz",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E 553a(i)",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "E 553a(ii)",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "EPA Pesticide Chemical Code 072601",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Florisil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Gastomag",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Haiburaito 1250",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Haiburaito 325",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HS-T (silicate)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 5823",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS NO.553(I)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "INS-553(I)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kyowaad 600S",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Macrosorb M 15",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magmasil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magnesium hydrosilicate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magnesium silicate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Magnesium silicate (talc)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magnesium silicate, synthetic",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magnesium trisilicate",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Magnesol",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magnesol XL",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Magsorbent",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Mizuka Life P 1G",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Mizupearl M 302",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Naisuton",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Nikkagel M",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Novasorb",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Salisil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sep-Pak Florisil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Shimugon M",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid, magnesium salt",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silton SS 1",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Tri-Sil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Trinesium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Trisomin",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E553a",
      "type": "e_number",
      "source": "openfoodtox"
    },
    {
      "name": "553(i)",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "dimagnesium tetraoxidosilane",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Dimagnesium trisilicon octaoxide",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Magnesium silicate",
      "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, \"Magnesium silicate\", https://foodadditiveindex.com/additives/magnesium-silicate. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.587Z"
}