{
  "url": "https://openlegislation.uk/eu-regulation-2014-298/annex-II",
  "json_url": "https://openlegislation.uk/eu-regulation-2014-298/annex-II.json",
  "legislation": "eur/2014/298",
  "legislation_title": "Commission Regulation (EU) No 298/2014 of 21 March 2014 amending Annex II to Regulation (EC) No 1333/2008 of the European Parliament and of the Council and the Annex to Commission Regulation (EU) No 231/2012 as regards Magnesium dihydrogen diphosphate for use as raising agent and acidity regulator (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2014-298",
  "path": "annex/II",
  "kind": "annex",
  "number": "II",
  "heading": null,
  "text": "In the Annex to Regulation (EU) No 231/2012, the following entry is inserted after the specifications for food additive E 450 (vii):\n‘\nE 450(ix) MAGNESIUM DIHYDROGEN DIPHOSPHATE\nSynonyms\nAcid magnesium pyrophosphate, monomagnesium dihydrogen pyrophosphate; magnesium diphosphate, magnesium pyrophosphate\nDefinition\nMagnesium dihydrogen diphosphate is the acidic magnesium salt of diphosphoric acid. It is manufactured by adding an aqueous dispersion of magnesium hydroxide slowly to phosphoric acid, until a molar ratio about 1:2 between Mg and P is reached. The temperature is held under 60 °C during the reaction. About 0,1 % hydrogen peroxide is added to the reaction mixture and the slurry is then heated and milled.\nEINECS\n244-016-8\nChemical name\nMono magnesium dihydrogen diphosphate\nChemical formula\nMgH2P2O7\nMolecular Weight\n200,25\nAssay\nP2O5 content not less than 68,0 % and not more than 70,5 % expressed as P2O5\nMgO content not less than 18,0 % and not more than 20,5 % expressed as MgO\nDescription\nWhite crystals or powder\nIdentification\nSolubility\nSlightly soluble in water, practically insoluble in ethanol\nParticle size:\nThe average particle size will deviate between 10 and 50 μm\nPurity\nLoss on ignition\nNot more than 12 % (800 °C, 0,5 hours)\nFluoride\nNot more than 20 mg/kg (expressed as fluorine)\nAluminium\nNot more than 50 mg/kg\nArsenic\nNot more than 1 mg/kg\nCadmium\nNot more than 1 mg/kg.\nLead\nNot more than 1 mg/kg\n’",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2014/298/annex/II",
    "retrieved_at": "2026-11-01T14:47:51.559703+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}