ALMAGATE BP

CAS  No. : 66827-12-1
Molecular Formula : Al2Mg6(OH)14(CO3)2, 4H2O
Molecular Weight : 630 gm/mol
Source : BP-2013

Application

Used as an Antacid Raw material in a specific antacid formulations.

Sr. No. Test Parameters Specification / Limits
1 Description White or almost white fine crystalline powder.
2 Solubility Practically insoluble in water, in ethanol (96%), and in methylene chloride. It dissolves in dilute mineral acids.
3 Identification (A)
(B)
(C)
By IR spectrophotometer, compare with reference spectrum.
It gives the reaction of aluminium salts.
It gives the reaction of magnesium salts.
4 pH (4% w/v solution) Between 9.1 to 9.7
5 Neutralizing capacity Not more than 20 ml of 0.1M NaOH is required.
6 Chloride Not more than 0.1 %
7 Sulphate Not more than 0.4 %
8 Sodium Not more than 150 ppm
9 Heavy Metals Not more than 20 ppm
10 Loss On Ignition Between 43 % to 49 %
11 Microbial Contamination:
TAMC
TYMC
E-Coli & Pseudomonades

Not more than 1000 cfu/gm
Not more than 100 cfu/gm
Absent per gm
12 Assay as Alluminium
Assay as Magnesium
Assay as Carbonic Acid
(By GC)
Bet. 15.0 % to 17.0 % as Al2O3
Bet. 36.0 % to 40.0 % as MgO
Bet. 12.5 % to 14.5 % as CO2


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