magnesium aluminosilicate Chemical Properties

InChI

InChI=1S/Al.Mg.H4O4Si.H2O.5H/c;;1-5(2,3)4;;;;;;/h;;1-4H;1H2;;;;;

InChIKey

BBNCRRCINJAOLW-UHFFFAOYSA-N

SMILES

[Si](O)(O)(O)O.[AlH3].[Mg].O

CAS DataBase Reference

71205-22-6

magnesium aluminosilicate Usage And Synthesis

Uses

Magnesium aluminum silicate is often used as a thickener, but also a good emulsion stabilizer and suspending agent. The combination of organic gum and magnesium aluminum silicate can bring out the best characteristics of both, which can be used for the bonding of different powders (talc, pigments and pharmaceuticals), and is a disintegrating agent for tablets. Magnesium aluminum silicate is a hydrophilic colloid, and has pseudo-plasticity and fluidity, it is the viscosity improver and thickener of cream, lotion shampoo, hair care products, it can suspend and disperse the powdered pigment to make the product get the best color, fine and smooth organization. Used as a thickener for toothpaste, it can be used together with CMC, which can improve the thixotropy and dispersibility of toothpaste.
Magnesium aluminum silicate can also be effectively used in pharmaceuticals, can control the pouring properties of oral suspensions and emulsions, which helps to get a uniform dose of the product. It is also used in tablet production. In metal and automotive polishes, tile and glass cleaners to suspend friction agents therein and stabilize emulsions. Used in white shoe polish to suspend pigments to prevent product hardening. Used in toothpaste, it has good compatibility with natural and synthetic gums and can improve the structure of strips.

Originator

Megalac Almasilat ,Krewel Meuselbach

Manufacturing Process

203 g of crystalline magnesium chloride such as is used as a food additive, containing 46% MgCl2, is dissolved in 600 ml of water, to which 96 g of caustic soda dissolved in 250 ml of water is added with stirring and a solution comprising 50 ml of water with 207 g of sodium silicate (Na2O, 9%, SiO2, 29%) is further added and is then vigorously stirred to produce basic sodium magnesium silicate (which is designated as Slurry A).
Secondly 593 g of aluminum sulfate containing 17.2% Al2O3, dissolved in 1,700 ml of water is gently added with stirring to 216 g of caustic soda dissolved in 600 ml of water, to which 50 ml of water added to 207 g of sodium silicate (Na2O 9%, SiO2, 29%) is slowly added and is then vigorously stirred to produce tetrabasic dialuminum silicate (which is designated as Slurry B). Slurry A and Slurry B are mixed up vigorously with stirring for 3 hours at room temperature. The thus obtained white gel-like precipitate is washed by decantation to remove free alkali, sodium sulfate, sodium chloride, etc. produced as reaction by-products. The residue is filtered and dried at 105°-110°C and 340 g of white powder of fine particle size is obtained as the final product. The molar ratio of MgO to Al2O3, to SiO2, in this product is approximately 1: 1: 2.
203 g of crystalline magnesium chloride such as is used as a food additive, containing 46% MgCl2, and 593 g of aluminum sulfate containing 17.2% Al2O3, are dissolved in 2,300 ml of water, to which a solution comprising 272 g of caustic soda with 800 ml of water, is slowly added with stirring. Thereafter, a solution comprising 414 g of sodium silicate (Na2O, 9%, SiO2, 29%) with 100 ml of water is added, the mixture is heated and is stirred for five hours, while keeping the temperature at 60°C. When the reaction mixture becomes neutral it is allowed to cool and to stand, the supernatant fluid is withdrawn and the white gel-like precipitate is washed by decantation to remove the impurities and dried at 105°-110°C and 350 g of white powder of fine particle size is obtained as the final product (almasilate).

Therapeutic Function

Antacid

magnesium aluminosilicate(71205-22-6)Related Product Information

• Magnesium fluorosilicate
• Artinite
• Chitosan
• Sodium carboxymethyl cellulose
• KAOLIN
• Xanthan gum
• Magnesium sulfate
• Polyacrylamide
• Zinc silicate
• Thickening agent
• ANTIFOAM SO-25 MOLECULAR BIOLOGY*REAGENT
• AerosilR202 (SiO2)
• Barium sulfate
• Magnesium silicate
• Magaldrate
• magnesium aluminosilicate
• Aluminium magnesium alloy powder
• ALUMINUM SILICON