Sodium Hypochlorite 5.25%

Name: Sodium Hypochlorite 5.25%
Brand: Alliance Chemical
SKU: UC-YLMB-8W8O
Availability: InStock
Rating: 4.7 (6 reviews)

Who Buys This

Water treatment facilities
Swimming pool service companies
Textile bleaching operations
Chemical manufacturing plants
Analytical testing laboratories

Grade Guide

Industrial & lab applications
5.25% alkaline oxidizing solution
Purity verified by COA
Suitable for commercial processes

Pack Sizes

1 Quart: lab & small jobs
1 Gallon: shop & maintenance
5 Gallon: production & regular use
15 Gallon: mid-volume operations
55 Gallon: bulk drum
275 Gallon: high-volume tote
330 Gallon: max-volume tote

Docs Included

SDS included with shipment
COA verifies 5-5.5% assay
UN 1791 Class 8 packaging
pH and purity specifications

Description
Product Documents
Chemical Profile

Product Overview

Sodium Hypochlorite 5.25% (Technical Grade) is a clear, pale yellow liquid solution of NaOCl, commonly referred to as liquid bleach or liquid chlorine. This 5.25% w/w solution provides robust oxidizing capabilities with high available chlorine content, typically assayed between 5.0 and 5.5%. It is essential for industrial water treatment, pH adjustment, and oxidative processes where consistent concentration control is critical.

With a density of approximately 1.08 g/mL at 25°C, this Technical Grade material is compatible with HDPE and glass containment. In industrial applications, Sodium Hypochlorite 5.25% acts as a powerful oxidizing agent for treating wastewater and controlling microbial growth in municipal systems. Its alkaline nature ensures stability during storage, though it must be handled with care to prevent degradation. This product is strictly intended for industrial and institutional use by professionals.

Key Properties

Chemical Formula: NaOCl
CAS Number: 7681-52-9
Appearance: Clear, pale yellow liquid
Assay (Available Chlorine): 5.0–5.5% (Typical 5.25%)
Specific Gravity (20°C): 1.07–1.12 (Typical 1.09)
Density (25°C): 1.08 g/mL
Molecular Weight: 74.44 g/mol
pH: Alkaline
Chloride (Cl⁻): ≤ 2000 ppm
Iron (Fe): ≤ 0.5 ppm
Heavy Metals: ≤ 0.5 ppm total
Sodium (Na): ≤ 2000 ppm

Common Applications

Water Treatment: Utilized in industrial and municipal water systems to control microbial growth and maintain residual oxidation levels.
Chemical Processing: Acts as a strong oxidizing agent in chemical synthesis and neutralization reactions.
Bleaching Agent: Standard agent for pulp and paper bleaching and textile whitening processes.
pH Control: Functions as an alkaline adjuster in production streams requiring precise pH modification.
Equipment Cleaning: Used for hard surface cleaning and circulation in closed industrial systems.

Safety Precautions

Sodium Hypochlorite is corrosive and must be handled according to the SDS. Store in a cool, dry, well-ventilated area away from direct sunlight. WARNING: Never mix with acids, ammonia, or other reducing agents, as this releases hazardous chlorine gas.

Wear appropriate PPE, including chemical-resistant gloves, splash goggles, and protective clothing. Ensure emergency eyewash stations are accessible. Transported as UN 1791, Hypochlorite Solutions, Class 8, PG III.

Benefits

High Available Chlorine – 5.25% concentration ensures reliable oxidation and bleaching power.
Technical Grade Purity – Low heavy metal and residue content for consistent industrial results.
Versatile Application – Effective for water treatment, synthesis, and surface preparation.

Related Products

Property	Value
Molecular Weight	74.44 g/mol g/mol
Formula	NaClO
Assay	5.25%
Flash Point	Not applicable
Form	Liquid
Solubility	Complete water solubility
Appearance	Pale yellow-green liquid
Melting Point	'-6°C °C
Boiling Point	101°C °C
Specific Gravity	1.11
Industry	Environmental, Wastewater, Industrial, Water Treatment

Frequently Asked Questions About Sodium Hypochlorite 5.25%

What is Sodium Hypochlorite 5.25% and what is its chemical formula?

Sodium Hypochlorite 5.25% is a chemical compound with the molecular formula NaClO, registered under CAS Number 7681-52-9 by the Chemical Abstracts Service (PubChem), with a molecular weight of 74.44 g/mol g/mol. Alliance Chemical supplies Sodium Hypochlorite 5.25% for laboratory, industrial, and commercial applications.

What are the physical properties of Sodium Hypochlorite 5.25%?

According to the NIOSH Pocket Guide to Chemical Hazards, Sodium Hypochlorite 5.25% is supplied as a pale yellow-green liquid. It has a melting point of '-6°C°C, a boiling point of 101°C°C, a flash point of Not applicable. The specific gravity is 1.11 relative to water. Solubility: Complete water solubility.

What grade and purity of Sodium Hypochlorite 5.25% does Alliance Chemical offer?

Alliance Chemical offers Sodium Hypochlorite 5.25% with a purity assay of 5.25%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.

What are common industrial applications of Sodium Hypochlorite 5.25%?

Sodium Hypochlorite 5.25% serves a wide range of sectors, including Environmental, Wastewater, Industrial, and Water Treatment.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.

What PPE is required when handling Sodium Hypochlorite 5.25%?

OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.

What are the storage requirements for Sodium Hypochlorite 5.25%?

Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:acids, aluminum, zinc. Maximum storage:6-12 months.

What is the emergency spill procedure for Sodium Hypochlorite 5.25%?

Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Neutralize with citric acid or acetic acid (5% solution). (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.

What is the DOT shipping classification for Sodium Hypochlorite 5.25%?

DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.

How must Sodium Hypochlorite 5.25% waste be disposed?

Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.

Does Alliance Chemical provide an SDS and COA for Sodium Hypochlorite 5.25%?

Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Sodium Hypochlorite 5.25%. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.