Dihydroxyaluminum Aminoacetate n Dihydroxyaluminum Sodium Carbonate USP Grade Suppliers

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Dihydroxyaluminum Aminoacetate and Dihydroxyaluminum Sodium Carbonate USP Grade Suppliers Exporters

Dihydroxyaluminum Sodium Carbonate USP Grade
NaAl(OH)2CO3 -- 143.99
Aluminum, [carbonato(1-)-O]dihydroxy-, monosodium salt.
Sodium (T-4)-[carbonato(2-)-O,O′]dihydroxyaluminate(1-).
Sodium (carbonato)dihydroxyaluminate(1-) [539-68-4; 16482-55-6].
Dihydroxyaluminum Sodium Carbonate contains not less than 98.3 percent and not more than 107.9 percent of dihydroxyaluminum sodium carbonate (CH2AlNaO5), calculated on the dried basis.

Identification: A 1-g portion, treated with 20 mL of 3 N hydrochloric acid, dissolves with effervescence, and the resulting solution responds to the tests for Aluminum and to the flame test for Sodium.
pH: between 9.9 and 10.2 in a suspension (1 in 25).
Acid-neutralizing capacity: not less than 75.0% of the expected mEq value, determined on about 425 mg of the undried material, accurately weighed, and calculated in relation to the results of the Assay. Each mg of NaAl(OH)2CO3 has an expected acid-neutralizing capacity of 0.0278 mEq.
Loss on drying: Dry it at 130 to constant weight: it loses not more than 14.5% of its weight.
Isopropyl alcohol: To pass the test: The limit is 1.0%.
Sodium content: To pass the test: between 15.2% and 16.8% is found.
Mercury: the limit is 1 ppm.
Assay: Not less than 98.3 percent and not more than 107.9 percent of dihydroxyaluminum sodium carbonate (CH2AlNaO5), calculated on the dried basis.

Dihydroxyaluminum Aminoacetate USP Grade
C2H6AlNO4.xH2O
Aluminum, (glycinato-N,O)dihydroxy-, hydrate.
(Glycinato)dihydroxyaluminum hydrate [41354-48-7].
Anhydrous 135.06 [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.

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 and 2 mL of 1 N sodium hydroxide, then add a slight excess of 6 N acetic acid: no red color is produced.
Nitrogen: Not less than 9.90% and not more than 10.60% of nitrogen is found.
Assay: not less than 94.0 percent and not more than 102.0 percent of dihydroxyaluminum aminoacetate (C2H6AlNO4), calculated on the dried basis.

Dihydroxyaluminum Aminoacetate and Dihydroxyaluminum Sodium Carbonate Suppliers:

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