Municipal / industrial water
- Process role: Disinfection and oxidation
- Critical parameters: Available chlorine; certification where required; chlorate/bromate context; dosing system
OGSCM / TECHNICAL PROCUREMENT INTELLIGENCE
Sodium Hypochlorite Solution (NaOCl)
Active-Chlorine Oxidant for Water Treatment, Disinfection and Controlled Industrial Use
Commercial sodium hypochlorite is procured primarily as an aqueous alkaline solution, not as an anhydrous solid commodity. The decisive buying parameters are available/active chlorine, NaOH excess, density, chlorate/metal impurities where relevant, production age, storage temperature, packaging compatibility and delivery frequency because hypochlorite continuously decomposes during storage.
High Adsorption Performance
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Trusted by industries across GCC & MENA
Mining
Water Treatment
Oil & Gas
Chemical
Power
Manufacturing
CHEMISTRY, MANUFACTURING CONTEXT & MATERIAL BEHAVIOUR
In water, hypochlorous acid/hypochlorite speciation is strongly pH-dependent. Commercial sodium hypochlorite is intentionally alkaline to improve stability. Its useful oxidizing/disinfecting capacity is expressed as available or active chlorine, which must be defined unambiguously in the RFQ. Concentration alone is insufficient if the analytical basis and age of product are unknown.
PROCESS-ENGINEERING & GRADE-SELECTION CONSIDERATIONS
- Remove 'anhydrous sodium hypochlorite' from the normal industrial purchasing narrative. Commercial procurement is overwhelmingly solution-based; solid forms are not interchangeable with bleach solution logistics.
- Do not list 25 kg bags as a normal pack for standard sodium-hypochlorite solution. Use compatible liquid packaging and verify venting because oxygen can evolve during decomposition.
- Heat and sunlight accelerate loss of available chlorine. GCC/MENA supply planning should minimize residence time and use shaded/cool storage consistent with the supplier SDS.
- Trace metals such as Ni, Cu, Co and Fe can catalyze decomposition. Avoid incompatible metallic contamination and use approved materials of construction.
- Never mix with acids or ammonia-containing materials: hazardous chlorine/chloramine release can occur. Site chemical segregation is essential.
◎ Technical Specifications
| Property | Value |
|---|---|
Formula |
NaOCl |
CAS |
7681-52-9 |
Molar mass |
74.44 g/mol |
Commercial form |
Aqueous alkaline solution; concentration is supplier/application specific |
Appearance |
Clear to pale yellow/green liquid; chlorine-like odor |
Reference density |
~1.21 for ~14% solution (concentration-dependent) |
Key assay basis |
Available/active chlorine; specify units explicitly: wt%, g/L or trade strength |
Stability |
Decomposes over time; accelerated by heat, light, lower pH and catalytic metal contamination |
Packaging |
Compatible vented HDPE/FRP systems, drums/IBCs/bulk as approved by supplier; concentration and route dependent |
INDUSTRIAL APPLICATION MATRIX
Wastewater
- Process role: Disinfection, odor control and oxidation
- Critical parameters: Demand, residual target, dosing and contact time
Cooling / process water
- Process role: Microbiological control where compatible
- Critical parameters: Active chlorine; materials compatibility; dosing control
Food-processing sanitation
- Process role: Controlled sanitation only with applicable grade/approval
- Critical parameters: Regulatory approval; concentration; rinse/use conditions
Textile / pulp & paper / cleaning
- Process role: Bleaching and oxidation
- Critical parameters: Concentration; pH; impurity profile; substrate compatibility
QUALITY CONTROL, COA PARAMETERS & TEST FOCUS
Available or active chlorine is measured using iodometric titration or a validated producer method to verify the product's primary active content. Free NaOH and alkalinity are determined through acid-base titration to assess stability and process compatibility. Density and specific gravity are checked using a hydrometer or density meter for quick concentration verification during receiving inspection.
Chlorate levels are monitored through ion chromatography or validated methods to control aging and by-product formation, particularly for water treatment applications. Transition metals are analyzed using ICP or AAS when required to help control product decomposition. Appearance and suspended matter are evaluated through visual inspection or turbidity testing to identify contamination and assess product condition. Manufacture and filling dates are verified through batch documentation to manage shelf life and ensure the required active strength upon delivery.
STORAGE, HANDLING, MATERIALS COMPATIBILITY & HSE
Sodium hypochlorite solution is corrosive/irritant and a reactive oxidizing chlorine chemical. Prevent contact with acids, ammonia, reducing agents and incompatible metals. Provide ventilation, splash protection, chemical-resistant PPE, secondary containment and emergency eyewash/shower. Storage tanks and containers must be compatible and designed for gas evolution as specified by the supplier.
PACKAGING, TRANSPORT & SUPPLY PLANNING FOR GCC / MENA
For industrial liquid supply, use supplier-approved drums, IBCs or bulk tanks/road tankers made from compatible materials. Confirm venting, UV/heat protection, fill concentration, delivered minimum active chlorine, maximum transport/storage time and receiving-tank compatibility. For potable-water use, require the applicable drinking-water treatment certification (for example NSF/ANSI/CAN 60 where contractually relevant).
Why Choose OGSCM?
Application-Driven Solutions
We match the right grade to your process needs.
Reliable Supply Chain
On-time delivery with strong regional & global logistics.
Quality You Can Trust
Strict quality control and batch consistency.
Expert Support
Technical & commercial support throughout your procurement journey.
Regional Presence
Serving industries across GCC and MENA with local expertise.
FREQUENTLY ASKED QUESTIONS
No. It is one commercial concentration range; every order must state the required delivered active chlorine and analytical basis.
No. Standard industrial procurement is predominantly aqueous solution.
Available chlorine decays during storage, especially with heat, light and catalytic contamination.
Keep it away from acids and ammonia-containing chemicals; dangerous chlorine/chloramine gases can be released.
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