Ammonium Hydroxide 29% Technical Grade

Product Overview

Ammonium Hydroxide 29% Technical Grade, sold under the product code AMMONIUM_HYDROXIDE_29_TECHNICAL_, is a clear, colorless aqueous solution of ammonia in water with a typical concentration near 29%. This ACS/USP-aligned reagent meets technical grade specifications for use in industrial and laboratory environments where precise pH adjustment, cleaning, and reagent applications are required. The solution offers strong alkaline characteristics, enabling effective neutralization, surface preparation, and analytical titration workflows. Its density, refractive index, and vapor pressure at ambient conditions are well characterized to support accurate dosing, performance prediction, and process control in water treatment, manufacturing, and analytical laboratories.

Designed for reliability and traceability, the technical grade ammonium hydroxide is maintained under controlled conditions to minimize ammonia loss due to evaporation. The product is compatible with HDPE or glass containers and is supplied with documented analytical ranges and compliance to reagent-grade standards, ensuring suitability for straightforward integration into existing systems, while complying with ACS/USP expectations for technical ammonium hydroxide.

Key Properties

• Appearance: Clear, colorless liquid
• Chemical Formula: NH₄OH
• Molecular Weight: 35.05 g/mol
• Boiling Point: 36°C
• Specific Gravity (20°C): 0.899 (range 0.895–0.905)
• Density (25°C): 0.897 g/mL
• Odor: Strong ammonia odor
• Flash Point: 11°C
• Vapor Pressure (20°C): 33 mmHg
• pH Range: Highly alkaline (pH dependent on concentration)
• Chloride (Cl⁻) (ppm max): 2 (typical 1)
• Iron (Fe) (ppm max): 0.2 (typical 0.05)

Common Applications

• Application Category: pH Adjustment – Water Treatment: Used to adjust the pH of water in municipal and industrial treatment processes, enabling controlled coagulation, precipitation, and corrosion control in distribution systems.
• Application Category: Cleaning Agent – Industrial Cleaning: Effective in removing organic and inorganic soils, grease, and residues on metal and non-metal surfaces in manufacturing and facility maintenance.
• Application Category: Chemical Synthesis – Chemical Manufacturing: Serves as a reagent in synthesis pathways requiring an alkaline aqueous medium and pH-driven reaction control.
• Application Category: Fertilizer Production – Agriculture: Utilized in nitrogen-based fertilizer production and processing, contributing to formulation pH control and process efficiency.
• Application Category: Laboratory Reagent – Analytical Chemistry: Commonly used in titrations, moisture determination, and preparative workflows requiring an ammonia source.

Safety Precautions

Handling, storage, and protective equipment: Store in a cool, well-ventilated area away from incompatible materials, using containers made of HDPE or glass to prevent reaction and ammonia loss. Maintain sealed, labeled containment and ensure adequate ventilation during handling. Wear appropriate PPE including chemical-resistant gloves, goggles or face shield, and acid/alkali-resistant clothing as required. Follow established SOPs for spill response and keep autosampler and sampling lines closed to minimize vapor exposure.

Additional safety considerations, exposure limits, emergency procedures: The product is classified as a corrosive liquid with the potential to cause severe skin burns and eye damage, and may cause respiratory irritation. In the event of exposure, flush eyes with water for several minutes; wash skin with soap and water; move to fresh air if inhaled and seek medical attention if symptoms persist. In case of ingestion or significant exposure, seek immediate medical attention. Transport is UN 2672, Ammonia solution, Class 8, PG III. Refer to the SDS for complete first aid, handling, and spill response instructions, and maintain adequate ventilation during use.

Benefits

✔ High Purity and Consistency – ACS/USP-aligned technical grade with traceable specifications supporting reliable dosing and analytical reproducibility.
✔ Versatile Alkaline Reagent – Effective pH adjustment and cleaning performance across water treatment, industrial cleaning, and chemical synthesis applications.
✔ Chemical Compatibility – Compatible with HDPE and glass containers; controlled composition minimizes contamination risk in sensitive processes.
✔ Stability and Documentation – 24-month shelf life under proper storage; comprehensive TDS with expanded test data and standard compliance.