Dihydroxyaluminum Aminoacetate or Aluminum Glycinate is antacid which has been developed as the improved product of Dried Aluminum Hydroxide Gel by our original technique. It has high gastric mucosal protection effect as buffering agent. Besides it is often formulated as crosslinking agent of poultice based polymer for Sodium Polyacrylate.

Dihydroxyaluminum Aminoacetate USP Grade Specifications:
C2H6AlNO4-xH2O
Aluminum, (glycinato-N,O)dihydroxy-, hydrate.
(Glycinato)dihydroxyaluminum hydrate CAS 41354-48-7
Anhydrous 135.05 CAS 13682-92-3.

Dihydroxyaluminum Aminoacetate yields not less than 94.0 percent and not more than 102.0 percent of dihydroxyaluminum aminoacetate (C2H6AlNO4), calculated on the dried basis. It may contain small amounts of aluminum oxide and of Aminoacetic Acid.

Packaging and storage: Preserve in well-closed containers.
Identification: Suspend 1 g in 25 mL of water, add hydrochloric acid, dropwise, until a clear solution is formed, and divide it into two equal parts for the following tests.
A: One portion of the solution responds to the tests for Aluminum.
B: To the other portion of the solution add 1 drop of liquefied phenol and 5 mL of sodium hypochlorite: a blue color is produced.

pH : between 6.5 and 7.5, in a suspension of 1 g of it, finely powdered, in 25 mL of water. Loss on drying: Dry it at 130C to constant weight: it loses not more than 14.5% of its weight.

Mercury: --- the limit is 1 ppm.

Isopropyl alcohol: Transfer about 5 g to a flask provided with a reflux condenser and add 100 mL of potassium permanganate solution (1 in 300) and 10 mL of sulfuric acid. Reflux the mixture for 30 minutes, distill and collect 10 mL of the distillate. To 1 mL of the distillate add 5 drops of sodium nitroferricyanide TS and 2 mL of 1 N sodium hydroxide, then add a slight excess of 6 N acetic acid: no red color is produced.

Nitrogen: Determine the nitrogen content as directed under Nitrogen Determination, using about 100 mg, previously dried and accurately weighed. Each mL of 0.1 N sulfuric acid is equivalent to 1.401 mg of nitrogen. Not less than 9.90% and not more than 10.60% of nitrogen is found.