{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/sodium-metasilicate",
  "slug": "sodium-metasilicate",
  "name": "Sodium metasilicate",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": "6834-92-0",
    "inchikey": "NTHWMYGWWRZVTN-UHFFFAOYSA-N",
    "pubchem_cid": 23266
  },
  "functional_class": null,
  "summary": "Sodium metasilicate is a strongly alkaline processing aid, used to peel fruit and vegetables chemically and to clean processing equipment. It is not an ingredient of the finished food.",
  "derivation_summary": "Produced by fusing sand with sodium carbonate.",
  "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 184.1769a",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1769a"
          },
          "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": "1344-09-8",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "6834-92-0",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "84992-49-4",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "Agrosil LR",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Agrosil S",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "as Bond 1001",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesil H 20",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Britesil H 24",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Carsil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Carsil (silicate)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 792",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Crystamet",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Disodium metasilicate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Disodium monosilicate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "disodium oxosilanebis(olate)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "disodium;dioxido(oxo)silane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dryseq",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dupont 26",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 072603",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 753",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "IJF18F77L3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "L 96 (salt)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Metso 20",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Metso 99",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Metso beads 2048",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Metso beads, drymet",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Metso pentabead 20",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Orthosil",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Portil A",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Pyramid 1",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Pyramid 8",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sikalon",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silica E",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silica K",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silica N",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silica R",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silican",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid (H2SiO3), disodium salt",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid (H2SiO3), disodium salt, pentahydrate (8CI,9CI)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid (H2SiO3), sodium salt (1:2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid, disodium salt",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Silicic acid, sodium salt",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SILICON SODIUM OXIDE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Simet A",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SODIUM BETA-SILICATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium metasilicate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium metasilicate (Na2SiO3)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium metasilicate, anhydrous",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium sesquisilicate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SODIUM SILICATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium silicate (Na2SiO3)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium silicate glass",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SODIUM SILICON OXIDE (NA2SIO3)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium siliconate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sodium water glass",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Soluble glass",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Star",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Water glass",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Waterglass",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Disodium;dioxido(oxo)silane",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Sodium metasilicate",
      "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, \"Sodium metasilicate\", https://foodadditiveindex.com/additives/sodium-metasilicate. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.697Z"
}