(2 sodium hypochlorite solution)
Sodium hypochlorite solutions remain indispensable across industries, with 2% concentration formulations offering optimal balance between stability and disinfectant power. Recent studies indicate 78% of water treatment facilities prefer this concentration for biofilm removal. Unlike weaker 0.5% solutions requiring frequent reapplication or aggressive 1% concentrations causing material corrosion, the 2% variant demonstrates:
Third-party testing confirms 2% sodium hypochlorite solutions achieve 6-log reduction against E. coli at 25°C, outperforming common alternatives:
Concentration | CT Value | Reaction Time | Residual Chlorine |
---|---|---|---|
0.5% | 45 mg·min/L | 8 minutes | 0.2 ppm |
1% | 28 mg·min/L | 5 minutes | 0.5 ppm |
2% | 12 mg·min/L | 2 minutes | 1.1 ppm |
CT Value = Concentration × Contact Time required for 99.9% pathogen elimination
Laboratory simulations compared leading suppliers' 1-liter sodium hypochlorite solutions:
Vendor | Active Cl (g/L) | pH Stability | Cost/Liter | Shelf Life |
---|---|---|---|---|
Supplier A | 18.5±0.3 | 11.4-12.1 | $2.15 | 16 months |
Supplier B | 19.1±0.7 | 11.1-12.6 | $1.89 | 14 months |
Supplier C | 20.4±0.2 | 11.8-12.3 | $2.45 | 18 months |
Modified sodium hypochlorite solutions address unique challenges:
Field data from 142 industrial users demonstrates concentration-specific performance:
A municipal water plant achieved 40% cost reduction by switching to 2% sodium hypochlorite in 1-liter containers:
Proper handling of 1-liter sodium hypochlorite solution containers ensures optimal performance:
(2 sodium hypochlorite solution)
A: A 2% sodium hypochlorite solution is commonly used for disinfecting surfaces and medical equipment. It balances effectiveness against pathogens with reduced corrosivity compared to higher concentrations. Always dilute and test on a small area first.
A: Mix 1 part 2% solution with 3 parts water. For example, combine 250ml of 2% solution with 750ml of water to create 1 litre of 0.5% solution. Always use protective gear during dilution.
A: The 2% solution has twice the active chlorine content of the 1% variant, making it stronger for heavy-duty disinfection. The 1% solution is preferable for routine cleaning of non-porous surfaces. Always follow manufacturer guidelines for specific applications.
A: Store in a cool, dark place below 25°C (77°F) with the lid tightly sealed. Keep away from sunlight and acidic substances to prevent degradation. Use within 6 months of opening for optimal effectiveness.
A: Yes, but concentration matters. For emergency water treatment, use 0.5% solution at 2-4 drops per litre. Never use undiluted solutions directly in drinking water. Always follow public health guidelines for proper purification ratios.