Dried Aluminium Hydroxide Gel
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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
| 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 |