DRIED ALUMINIUM HYDROXIDE GEL IP

CAS  No. : 21645-51-2
Molecular Formula : Al(OH)3
Molecular Weight : 78.00 gm/mol
Storage Condition : Store protected from moisture
Source : IP-2010 Vol-2, Page No.789

Application

Mainly used as an Active medicament in an Antacid Formulations, also used in manufacturing of Lake colors, Inks, catalysts carrier etcs.

Sr. No. Test Parameters Specification / Limits
1 Description White, light amorphous powder, Odourless and tasteless.
2 Solubility Insoluble in water and in ethanol (95%), it dissolves in dilute mineral acids and in excess of caustic alkali solution.
3 Identification It gives the reaction of aluminium salts.
4 pH
(4 % w/v Suspension.)
Not more than 10
5 Arsenic Not more than 5 ppm
6 Heavy Metals Not more than 60 ppm
7 Chloride Not more than 1.25 %
8 Sulphate Not more than 1.20 %
9 Neutralizing Capacity


0.1 M NaOH
After 10 Min. – pH NLT 1.8
After 15 Min. – pH NLT 2.3
After 20 Min. – pH NLT 3.0
NMT 35 ml of 0.1 M NaOH is required
10 Microbial Limits:
E-Coli:  

Absent per gm
11 Assay as Al2O3 Between 47 % to 60 % of Al2O3

DRIED ALUMINIUM HYDROXIDE GEL USP

CAS  No. : 21645-51-2
Molecular Formula : Al(OH)3
Molecular Weight  : 78.00 gm/mol
Storage Condition : Preserve in tight container
Source : USP-34, Page No. 1819

Application

Mainly used as an Active medicament in an Antacid Formulations, also used in manufacturing of Lake colors, Inks, catalysts carrier etcs.

Sr. No. Test Parameters Specification / Limits
1 Description White amorphous powder, odorless, tasteless
2 Solubility Soluble in dilute mineral acids, and solution of fixed alkali hydroxide. Insoluble in water and alcohol.
3 Identification - A
B
By IR spectrophotometer.
It gives the reaction of aluminium.
4 Acid Neutralizing Capacity Not less than 25.0 mEq per gm.
5 pH(1gm in 25ml) Not more than 10
6 Chloride Not more than 0.85 %
7 Sulphate Not more than 0.60 %
8 Arsenic Not more than 8 ppm
9 Heavy Metals Not more than 0.006 %
10 Assay as Al(OH)3 Not less than 76.5 % of Al(OH)3

DRIED ALUMINIUM HYDROXIDE GEL BP

(Hydrated Aluminium Oxide Ph Eur)

CAS  No. : 21645-51-2
Molecular Formula : Al(OH)3
Source : BP- 2013

Application

Mainly used as an Active medicament in an Antacid Formulations, also used in manufacturing of Lake colors, Inks, catalysts carrier etcs.

Sr. No. Test Parameters Specification / Limits
1 Description A white amorphous powder.
2 Solubility Practically insoluble in water. It dissolves in dilute mineral acids and in solutions of alkali hydroxides.
3 Identification Solution S gives the reaction of aluminium salts.
4 Appearance of solution Solution S not more opalescent than Ref. suspension II, and not more intensely colored than Ref. sol GY6
5 Alkaline Impurities Any pink color is disappeared on the addition of 0.3 ml of 0.1M HCl.
6 Neutralizing Capacity After 10 Min. – pH NLT 1.8 – NMT 4.5
After 15 Min. – pH NLT 2.3 - NMT 4.5
After 20 Min. – pH NLT 3.0 - NMT 4.5
NMT 35 ml of 0.1M NaOH is required
7 Chloride Not more than 1.0 %
8 Sulphate Not more than 1.0 %
9 Arsenic Not more than 4 ppm
10 Heavy Metals  Not more than 60 ppm
11 Microbial Contamination:
Total viable aerobic count
Total Yeast & Mold Count
E-Coli
Salmonella
Pseudomonas aeruginosa
Staphylococcus aureus

Not more than 1000 cfu/g
Not more than 100 cfu/gm
Absent per gm
Absent per gm
Absent per gm
Absent per gm
12 Assay as Al2O3 Between 47.0 % to 60.0 % of Al2O3


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