Sodium Hypochlorite 12.5%

Product Overview

Sodium Hypochlorite 12.5% (Technical Grade) is a clear, pale yellow liquid characterized by strong oxidizing properties, making it essential for demanding industrial environments. Commonly referred to as industrial bleach or liquid chlorine, the solution is prepared to deliver available chlorine content in the 12.5–13.0 wt% range (typical 12.8%). This concentration enables consistent performance across processes requiring rapid oxidation. Its density at 25°C is approximately 1.20 g/mL, with a boiling point around 101.5°C, ensuring predictable handling and dosing in large-scale systems.

This product is supplied with rigorous quality control, including titration-based assay verification and impurity profiling to minimize contaminants that could impact downstream reactions. The formulation is strictly designed for use in water treatment, pH adjustment, and oxidative processes in accordance with Technical Grade specifications. Sodium hypochlorite solutions are widely adopted in environmental engineering, chemical manufacturing, and laboratory settings where controlled oxidizing capacity is essential for process reliability.

Applications span from wastewater treatment to industrial textile bleaching and laboratory analytics. The product is compatible with HDPE and glass containers and must be stored in cool, dry environments away from direct sunlight to preserve stability. Proper handling requires appropriate PPE and adherence to SDS guidelines. This description reflects current TDS data to ensure trusted performance in critical operations.

Key Properties

• Chemical Formula: NaOCl
• CAS Number: 7681-52-9
• Grade: Technical
• Appearance: Clear, pale yellow liquid
• Odor: Chlorine-like odor
• Molecular Weight: 74.44 g/mol
• Density (25°C): ~1.20 g/mL
• Boiling Point: 101.5°C
• Solubility: Soluble in water
• Specific Gravity (20°C): 1.19 – 1.22 (typical 1.205)
• Available Chlorine (wt%): 12.5 – 13.0% (typical 12.8%)

Common Applications

• Water Treatment: Used in the environmental treatment of wastewater streams for odor control and oxidation of organic contaminants.
• Bleaching Agent: Employed in the textile and paper industries for fabric and fiber whitening requiring controlled oxidation performance.
• Chemical Manufacturing: Acts as a strong oxidizer in chemical synthesis and reaction workflows.
• pH Adjustment: Used in industrial processes leveraging oxidative strength in controlled pH-modification workflows.
• Laboratory Reagent: Serves as a standard reagent for oxidation-based analytical methods.
• Process Cleaning: Effective for degreasing and surface preparation in industrial maintenance where oxidizing cleaning action is required.

Safety Precautions

Handle with appropriate PPE including chemical splash goggles, face shield, chemical-resistant gloves, and protective clothing. Store in a cool, dry place away from direct sunlight, acids, and organic materials, using containers made of HDPE or glass. Ensure proper ventilation in storage areas to minimize vapor buildup. The material is a strong oxidizer and can pose risks of skin and eye irritation; avoid inhalation of vapor.

Transport follows UN 1791 guidelines for hypochlorite solutions (Class 8, PG II). Consult the Safety Data Sheet (SDS) for detailed first-aid actions, spill containment procedures, and compatibility data before use.

Benefits

High available chlorine content – Provides strong, consistent oxidation capabilities across batch sizes and process scales.
Technical Grade reliability – Meets industrial specifications with rigorous QA, ensuring reproducible performance.

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