Sodium aluminosilicate

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Sodium aluminosilicate (amorphous)
Other names E554
Identifiers
CAS number [1344-00-9]
EC number 215-684-8
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Sodium aluminosilicates, sometimes called sodium silicoaluminates (especially in the United States), are a large class of compounds of general formula Na(2x)Al(2y)SizO(x+3y+2z)·mH2O, also written as xNa2yAl2O3·zSiO2·mH2O. They occur widely in nature as feldspars and other aluminosilicate minerals, and are also produced artificially on a large scale as zeolites, especially for use in laundry powders.[1]

Amorphous sodium aluminosilicate is manufactured for use as an anticaking agent in food (INS 554).[2][3] It is "generally recognized as safe" (GRAS) at levels of less than 2% in the United States,[4] and is also approved for use in Australia and New Zealand,[5] Canada[6] and (in a limited range of products)[note 1] in the European Union.[7][8][9][10]

See also

Notes and references

Notes

  1. Only dried powdered foodstuffs (including sugars), salt and salt substitutes, sliced or grated hard, semi-hard and processed cheese and cheese analogues (< 10 g/kg total anticaking agents); seasonings and tin-greasing products (< 30 g/kg total anticaking agents); chewing gum, rice, food supplements as defined in Directive 2002/46/EC, foodstuffs in tablet and coated tablet form (quantum satis); sausages and confectionery (excluding chocolate; suface treatment only, quantum satis): Annex IV, Directive 95/2/EC, as modified by Art. 1.6 and Annex, Directive 98/72/EC and by Art. 1.3 and Annex I, Directive 2006/52/EC.

References

  1. Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 141–16. ISBN 0-08-022057-6.
  2. Codex Class Names and the International Numbering System for Food Additives, 7th ed.; Codex Alimentarius Commission, Food and Agriculture Organization, 2009. CAC/GL 36-1989, <http://www.codexalimentarius.net/download/standards/7/CXG_036e.pdf>.
  3. Sodium aluminosilicate; FAO/WHO Joint Expert Committee on Food Additives (JECFA), 2006, <http://www.fao.org/ag/agn/jecfa-additives/specs/monograph3/additive-391.pdf>.
  4. Code of Federal Regulations, Title 21: Food and Drugs, Part 182: Substances generally recognized as safe (edition of April 1, 2009).
  5. Standard 1.3.1, Australia New Zealand Food Standards Code.
  6. Table X to Division B.16, Food and Drug Regulations (C.R.C., c. 870).
  7. Art. 30, Regulation (EC) No 1333/2008 of the European Parliament and of the Council of 16 December 2008 on food additives, OJEU L354, 31.12.2008, pp 16–33.
  8. Annex IV, European Parliament and Council Directive No 95/2/EC of 20 February 1995 on food additives other than colours and sweeteners, OJEU L61, 18.3.1995, pp 1–40.
  9. Art. 1.6 and Annex, Directive 98/72/EC of the European Parliament and of the Council of 15 October 1998 amending Directive 95/2/EC on food additives other than colours and sweeteners, OJEU L295, 4.11.1998, pp 18–30.
  10. Art. 1.3 and Annex I, Directive 2006/52/EC of the European Parliament and of the Council of 5 July 2006 amending Directive 95/2/EC on food additives other than colours and sweeteners and Directive 94/35/EC on sweeteners for use in foodstuffs, OJEU, L204, 26.07.2006, pp 10–22.

Further reading

External links

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