Description
Ammonia 25% Solution AR is an analytical reagent grade aqueous ammonia solution, widely available from lab chemical suppliers for laboratory, industrial, and specific cleaning applications.
Product Specifications
Ammonia 25% Solution AR (Ammonium Hydroxide, NH₄OH in H₂O) is a clear, colorless liquid with a pungent, characteristic ammonia odor.
- Concentration: Minimum 25% (w/w) as NH₃.
- Grade: Analytical Reagent (AR), suitable for laboratory procedures requiring high purity.
- Formula: NH₄OH.
- Molar Mass: 35.04 g/mol.
- CAS Number: 1336-21-6.
- Density: Approximately 0.880 g/cm³ at 20°C.
- pH: >11.5 (strongly alkaline).
- Solubility: Completely soluble in water.
Common Uses
- Laboratory Applications: Used as a pH-adjusting agent, in titration reactions, as a complexant and base in qualitative inorganic analysis, and for dissolving silver oxide residues.
- Industrial Applications: Ingredient in the manufacturing of fertilizers, pharmaceuticals, plastics, textiles, and for metal etching and degreasing.
- Cleaning Agents: A key ingredient in some household cleaning solutions, including specific gold, silver, and platinum jewellery cleaners.
Safety and Handling
Ammonia 25% solution is a hazardous material that requires careful handling.
- Hazards: It causes severe skin burns and eye damage, is toxic if inhaled, and is very toxic to aquatic life. Vapors can cause respiratory irritation.
- Precautions: Use in a well-ventilated area or with appropriate respiratory equipment. Wear protective gloves, clothing, and eye/face protection.
- Storage: Store in a cool, dry, well-ventilated area, away from strong acids and oxidising agents.
- First Aid: In case of skin or eye contact, rinse immediately with plenty of water for at least 20 minutes and seek medical attention. If inhaled, remove to fresh air.
Suppliers
Ammonia 25% Solution AR is available from various laboratory chemical suppliers.
- Chemistore: Offers Ammonia 25% AR in a 2.5L size.
- Essential Products: Provides Ammonia 25% solution AR in a 2.5L container.
- Masiye Labs: Sells Ammonia Solution AR in a 2.5L and 5L size.
- Chemical Plus: Carries the product in 2.5L bottles and larger volumes.
- Reflecta Laboratory Supplies: Lists Ammonia 25% Solution AR in different pack sizes
