Magnesium aluminium silicate is composed of magnesium, aluminum, silica, and oxygen. The hydrated form of magnesium aluminum silicate is a mixture of clays. This purified mixture is commonly used as an antacid. It is also used as a thickener in beauty products and cosmetics, and as an inactive ingredient in deodorants.
Specifications:

• Description: White odorless powder, odorless, Tasteless, slight Hygroscopic
• Solubility: Insoluble in water, almost soluble in Dil. HCl
• Loss on Ignition: Between 20% to 30% at 1000’ C
• Heavy Metals: NMT 40 ppm
• Arsenic: NMT 8 ppm
• Chloride: NMT 450 ppm
• Sulphate: NMT 0.4 % ( ASSAY)
• Magnesium Oxide: 14.0 % to 21 %
• Aluminium Oxide: 20.0 % to 27.0%
• Silicon Dioxide: 48.0 % to 58.0 %
• Acid Consuming Capacity: Not Less Than 175.0 ml of 0.1 M HCl