Sodium Hypochlorite Solution (10–15%)
CAS Number: 7681-52-9
Sodium hypochlorite solution is the most widely used liquid oxidizing biocide for water disinfection, providing fast-acting broad-spectrum kill against bacteria, viruses, and algae. Supplied at 10–15% available chlorine for dosing into drinking water, wastewater, and cooling systems.
Technical Specifications
| dosage | 1–5 mg/L residual chlorine |
| packaging | 200 kg drum or IBC 1000 L |
| appearance | Clear to pale yellow liquid |
| NaOH content | ≤1% |
| stability loss | <0.5%/month (cool, dark storage) |
| specific gravity | 1.10–1.20 |
| available chlorine | 10–15% |
Applications
- Municipal drinking water and swimming pool disinfection
- Wastewater treatment plant effluent disinfection
- Cooling tower algae and bacteria control
- Food and beverage sanitation and CIP
- Industrial water system shock dosing
- Legionella prevention in building water systems
Key Features
- Widely accepted for potable water disinfection (EPA, WHO)
- Liquid form eliminates gas cylinder handling — safer than Cl₂ gas
- Cost-effective broad-spectrum kill at low dosage
- Compatible with inline metering pumps for automated dosing
- No complex on-site generation equipment required
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