Key Properties of Aluminum Hydroxide
| Product Name: | Aluminum hydroxide |
| Synonyms: | Aluminium trihydroxide, Aluminium trihydrate, Aluminium hydrate |
| CAS No: | 21645-51-2 |
| Chemical Formula: | Al(OH)₃ |
| Grade: | IP/BP/USP |
| Appearance: | White or almost white fine powder |
| Molar Mass: | 78.00 g/mol |
| Solubility: | Soluble in dil. Mineral acid and sol. of fixed alkali hydroxide. Insoluble in water and alcohol. |
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BroucherManufacturing process of Aluminum Hydroxide
The process starts with checking equipment cleanliness and verifying the availability of utilities, raw materials, and packing materials.
Charge Purified water is into a reactor and add aluminum salts, such as aluminum chloride or aluminum sulfate, are added under continuous stirring. The pH of the solution is adjusted with an alkali, like sodium hydroxide, to precipitate aluminum hydroxide. The reaction is maintained at 50–60°C with continuous stirring until complete precipitation occurs.
The aluminum hydroxide precipitate is separated using a centrifugation operation and wash wet cake with with purified water to remove impurities.
The wet aluminum hydroxide is then dried at 80–120°C until the desired moisture content is achieved. The dried material is milled for uniform particle size and sieved through a specified mesh size. After quality control checks, Pack Aluminum Hydroxide in a clear poly bag and twist the mouth of the bag. Secure it with a PVC strip. Place this bag inside another poly bag, twist its mouth, and secure it with a PVC strip. Finally, place the sealed bag in an HDPE container. Store Aluminum Hydroxide in a tightly closed, light-resistant container at a temperature below 30°C.
Applications of Aluminum Hydroxide
Technical Specifications of Aluminum Hydroxide
| Sr.No. | Test | Specification |
|---|---|---|
| 01 | Appearance | White or almost white fine powder |
| 02 | Solubility | Soluble in dil. Mineral acid and sol. of fixed alkali hydroxide. Insoluble in water and alcohol |
| 03 | Identification (Test A&B) | A) By IR Spectrophotometer B) It gives reaction of aluminium |
| 04 | Assay as Al(OH)3 | Not less than 76.5% of Al(OH)3 |
| 05 | Acid Neutralizing Capacity | Not less than 25 mEq per gm |
| 06 | Chloride | Not more than 0.85% |
| 07 | Sulphates | Not more than 0.60% |
| 08 | Arsenic | Not more than 8 ppm |
| 09 | Heavy Metals | Not more than 0.006% |
| 10 | pH | Not more than 10 |
| 11 | Microbial contamination | Bile tolerant gram negative bacteria absent per gm Escherichia coli absent per gm TAMC Not more than 1000 cfu/gm TYMC Not more than 100 cfu/gm |
| 12 | Loss on Drying | Not more than 2.0% |
| 13 | Particle size | 95% Minimum passes through 300 Mesh |
Packing and Storage condition of Aluminum Hydroxide
Pack Aluminum Hydroxide in a clear poly bag and twist the mouth of the bag. Secure it with a PVC strip. Place this bag inside another poly bag, twist its mouth, and secure it with a PVC strip. Finally, place the sealed bag in an HDPE container. Store Aluminum Hydroxide in a tightly closed, light-resistant container at a temperature below 30°C.
Why Choose Chemignition for
Aluminum Hydroxide Supply?
Quality Assurance
Grade Compliance
Aluminum Hydroxide is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
Large-Scale Manufacturing and Export
Grade Compliance
Aluminum Hydroxide is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
