alginate


alginate
An irreversible hydrocolloid consisting of salts of alginic acid, a colloidal acid polysaccharide obtained from seaweed and composed of mannuronic acid residues; used in dental impression materials.

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al·gi·nate 'al-jə-.nāt n a salt of alginic acid

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al·gi·nate (alґjĭ-nāt) any salt of alginic acid. Soluble alginates, such as sodium, potassium, and magnesium alginates, form a viscous sol that can be changed into a gel by a chemical reaction with compounds such as calcium sulfate, a property which makes them useful as materials for taking dental impressions. See also magnesium alginate, under magnesium.

Medical dictionary. 2011.

Look at other dictionaries:

  • alginate — ● alginate nom masculin Sel de l acide alginique. alginate [alʒinat] n. m. ÉTYM. XXe; de algine, et suff. ate. ❖ ♦ Chim. et techn. Sel de l acide alginique, utilisé notamment dans l industrie alimentaire, dans l industrie textile. || Laines à …   Encyclopédie Universelle

  • alginate — [al′jə nāt΄] n. a salt of alginic acid …   English World dictionary

  • Alginate — Acide alginique Alginate Acide alginique Général …   Wikipédia en Français

  • Alginate — Strukturformel Allgemeines Name Alginsäure Andere Namen Algin E 400 …   Deutsch Wikipedia

  • Alginate — Al|gi|na|te 〈Pl.; Biol.〉 Salze u. Ester der Alginsäure; Sy Algine * * * Alginate   [zu Algen], Singular Alginat das, (e)s, Algine, Singular Alg …   Universal-Lexikon

  • alginate — alginatas statusas T sritis chemija apibrėžtis Algino rūgšties druska. atitikmenys: angl. alginate rus. альгинат …   Chemijos terminų aiškinamasis žodynas

  • alginate — noun Date: circa 1909 a salt or ester of alginic acid …   New Collegiate Dictionary

  • alginate — Salts of alginic acids, occurring in the cell walls of some algae. Commercially important in food processing, swabs, some filters, fire retardants etc. Calcium alginates form gels. Alginic acid is a linear polymer of mannuronic and glucuronic… …   Dictionary of molecular biology

  • alginate — /al jeuh nayt /, n. a salt of alginic acid. [1935 40; ALGIN + ATE2] * * * …   Universalium

  • alginate — noun Any salt or ester of alginic acid …   Wiktionary