Magnesium Hydroxide IP
CAS No. : 1309-42-8
Molecular Formula : Mg(OH)2
Molecular Weight : 58.32 gm/mlCategory : Antacid; Osmotic laxative
Storage Condition : Store protected from moisture
Source : IP-2010, Vol-2, Page No.1622
Application:
Antacid suspensions can be made from viscous pastes, pumpable gels, powders (preferably micronized) or preformulated products. Antacid tablets and Laxative suspensions can be made from powders, directly compressible (DC) ingredients or DC preformulated products.
Specifications:
Test Parameters |
Specification / Limits |
| Description | Bulky white fine amorphous powder, Odorless |
| Solubility | Practically insoluble in water and ethanol 95%, It dissolves is dilute acids |
| Identification | Passes Test |
| Color of solution | Passes Test |
| Arsenic | Not more than 4ppm |
| Calcium | Not more than 1.5% |
| Heavy Metals | Not more than 30ppm |
| Iron | Not more than 0.08% |
| Chloride | Not more than 0.1% |
| Sulphate | Not more than 0.5% |
| Soluble Substances | Not more than 10.0mg |
| Substance insoluble in Acetic Acid | Not more than 5.0mg |
| Loss on Ignition | Not Less than 30.0% and Not more than 32.5 % |
| Assay as Magnesium Hydroxide Mg(OH)2 | Not Less than 95.0% Not more than 100.5 % |
Magnesium Hydroxide USP
CAS No. : 1309-42-8
Molecular Formula : Mg(OH)2
Molecular Weight : 58.32 gm/mlStorage Condition : Preserve in tight container Source : USP-34, Page No.3365
Application:
Antacid suspensions can be made from viscous pastes, pumpable gels, powders (preferably micronized) or preformulated products. Antacid tablets and Laxative suspensions can be made from powders, directly compressible (DC) ingredients or DC preformulated products.
Specifications:
Test Parameters |
Specification / Limits |
| Description | Bulky white fine amorphous powder, Odorless |
| Solubility | Practically insoluble in water and ethanol 95%, It dissolves is dilute acids |
| Identification | Passes Test |
| Color of solution | Passes Test |
| Arsenic | Not more than 4ppm |
| Calcium | Not more than 1.5% |
| Heavy Metals | Not more than 30ppm |
| Iron | Not more than 0.08% |
| Chloride | Not more than 0.1% |
| Sulphate | Not more than 0.5% |
| Soluble Substances | Not more than 10.0mg |
| Substance insoluble in Acetic Acid | Not more than 5.0mg |
| Loss on Ignition | Not Less than 30.0% and Not more than 32.5 % |
| Assay as Magnesium Hydroxide Mg(OH)2 | Not Less than 95.0% Not more than 100.5 % |
Magnesium Hydroxide BP
CAS No. : 1309-42-8
Molecular Formula : Mg(OH)2
Molecular Weight : 58.32 gm/ml
Source : BP-2013
Application:
Antacid suspensions can be made from viscous pastes, pumpable gels, powders (preferably micronized) or preformulated products. Antacid tablets and Laxative suspensions can be made from powders, directly compressible (DC) ingredients or DC preformulated products.
Specifications:
Test Parameters |
Specification / Limits |
| Description | Bulky white fine amorphous powder, Odorless |
| Solubility | Practically insoluble in water and ethanol 95%, It dissolves is dilute acids |
| Identification | Passes Test |
| Color of solution | Passes Test |
| Arsenic | Not more than 4ppm |
| Calcium | Not more than 1.5% |
| Heavy Metals | Not more than 30ppm |
| Iron | Not more than 0.08% |
| Chloride | Not more than 0.1% |
| Sulphate | Not more than 0.5% |
| Soluble Substances | Not more than 10.0mg |
| Substance insoluble in Acetic Acid | Not more than 5.0mg |
| Loss on Ignition | Not Less than 30.0% and Not more than 32.5 % |
| Assay as Magnesium Hydroxide Mg(OH)2 | Not Less than 95.0% Not more than 100.5 % |