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Sodium aluminosilicate refers to compounds which contain sodium, aluminium, silicon and oxygen, and which may also contain water. These include synthetic amorphous sodium aluminosilicate, a few naturally occurring minerals and synthetic zeolites. Synthetic amorphous sodium aluminosilicate is widely used as a food additive, E 554.
The aluminosilicate framework of LTA-type zeolite (left) and FAU-type zeolite (right). Vertices = Al or Si, oxygen atoms are not shown. Feldspar is a common tectosilicate aluminosilicate mineral made of potassium, sodium, and calcium cations surrounded by a negatively charged network of silicon, aluminium and oxygen atoms.
Sodium is present as an extra-framework cation (in green). Si atoms can be partially replaced by Al or other tetravalent metals. Zeolites are white solids with ordinary handling properties, like many routine aluminosilicate minerals, e.g. feldspar. They have the general formula (MAlO 2)(SiO 2) x (H 2 O) y where M + is usually H + and Na +. The ...
By composition, belomorite belongs to the feldspar family; it is a sodium aluminosilicate from the plagioclase group, in most cases belonging to the isomorphic series albite (Ab) — anorthite (An) with an approximate percentage of 70Ab-30An.
Adsorption of water in sodium aluminosilicate which is FDA approved (see below) used as molecular sieve in medical containers to keep contents dry and as food additive having E-number E-554 (anti-caking agent); Preferred for static dehydration in closed liquid or gas systems, e.g., in packaging of drugs, electric components and perishable ...
Sodium aluminosilicate; U. Ultramarine This page was last edited on 25 March 2013, at 15:19 (UTC). Text is available under the Creative Commons Attribution-ShareAlike ...
Sodium alginate – thickener, vegetable gum, stabilizer, gelling agent, emulsifier; Sodium aluminium phosphate – acidity regulator, emulsifier; Sodium aluminosilicate (sodium aluminium silicate) – anti-caking agent; Sodium ascorbate – antioxidant (water-soluble) Sodium benzoate – preservative; Sodium bicarbonate – mineral salt
Analcime (/ ə ˈ n æ l s iː m,-s aɪ m /; from Ancient Greek ἀνάλκιμος (análkimos) 'not strong') or analcite is a white, gray, or colorless tectosilicate mineral. ...