Sodium Hydroxide 25%

Product Overview

Sodium Hydroxide 25% is a highly alkaline aqueous solution of NaOH, formulated to deliver consistent reactivity for industrial applications. Commonly known as Caustic Soda or Lye, this solution is designed for precise pH control, offering strong basicity suitable for large-volume usage in water treatment, metal finishing, and chemical processing. Its liquid form allows for easy metering and integration into existing feed systems.

This Technical Grade product is manufactured to strict specifications to ensure reliability in neutralization and saponification processes. It effectively hydrolyzes fats and oils, making it a premier choice for industrial degreasing and soap manufacturing. Sodium Hydroxide 25% provides a cost-effective, high-performance source of alkalinity for plant operations requiring stable chemical properties.

Key Properties

• Appearance: Clear, colorless to slightly yellow liquid
• Chemical Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00 g/mol
• Specific Gravity (25°C): 1.18–1.30 (Typical 1.24)
• Assay (wt %): 24.5–25.5%
• Sodium Hydroxide Availability: ~25%
• Solubility: Completely miscible in water
• Boiling Point: Approx. 100°C

Common Applications

• Water Treatment: Used extensively for pH adjustment and neutralization of acidic wastewater streams to meet discharge compliance.
• Industrial Cleaning: Acts as a heavy-duty alkaline cleaner and degreaser for process equipment, effectively saponifying fats, oils, and grease.
• Chemical Manufacturing: A vital reactant in the production of organic chemicals, soaps, detergents, and sodium salts.
• Metal Processing: Used in metal surface preparation, etching, and refining processes.
• Biodiesel Production: Functions as a catalyst in the transesterification process.

Safety Precautions

Sodium Hydroxide 25% is a corrosive liquid that causes severe skin burns and eye damage. Handling requires strict adherence to safety protocols and the use of appropriate Personal Protective Equipment (PPE), including chemical-resistant gloves, splash goggles, face shields, and protective suits. Ensure adequate ventilation to avoid inhaling mists or vapors.

Store in a cool, dry place in corrosion-resistant containers (such as HDPE) away from acids, moisture, and reactive metals (aluminum, zinc, tin). In the event of exposure, flush immediately with copious amounts of water and seek medical attention. Refer to the Safety Data Sheet (SDS) for detailed handling and emergency instructions.

Benefits

Reliable Alkalinity – Provides consistent pH adjustment power for industrial process control.
Versatile Utility – Suitable for wastewater treatment, cleaning, and chemical synthesis.
Liquid Formulation – Ready-to-use solution eliminates the need for dissolving solid pellets, reducing handling risks.
Broad Packaging Options – Available in sizes ranging from 1 Quart to 330 Gallon Totes to suit any operation scale.

Related Products

• Ammonium Hydroxide 29% ACS Grade
• Ammonium Hydroxide 29% Technical Grade
• Gleam Guru - Ammonia Cleaning Solution
• Sodium Hydroxide 25% ACS Grade (For Lab/Analytical Use)