What concentration should I use for different applications?
For general disinfection use 1000-1500 ppm, for laboratory decontamination use 2000-5000 ppm, for food surfaces use 200-400 ppm, and for emergency water treatment use 50-200 ppm.
How long does diluted bleach solution remain effective?
Diluted bleach solutions should be prepared fresh daily and used within 24 hours for maximum effectiveness. Store in a cool, dark place away from light and heat.
What safety precautions should I follow when diluting bleach?
Always add bleach to water, never water to bleach. Work in a well-ventilated area, wear protective equipment, and never mix bleach with other chemicals, especially ammonia or acids.
Why do I need to know the starting concentration of my bleach?
Household bleach varies from 3% to 8.25% sodium hypochlorite. Knowing the exact concentration ensures you create the correct dilution ratio for effective disinfection.
Can I use this calculator for pool maintenance?
While this calculator works for basic chlorine solutions, pool maintenance requires specialized calculations considering cyanuric acid, pH levels, and other factors. Consult pool-specific resources for comprehensive treatment.
What should I do if my desired concentration is higher than my starting bleach?
You cannot dilute bleach to a higher concentration than what you start with. You'll need a stronger bleach product or use the solution undiluted if appropriate for your application.
How do I measure small amounts of bleach accurately?
For small quantities, use measuring spoons or a syringe for precision. 1 teaspoon = 5ml, 1 tablespoon = 15ml. Always measure bleach first, then add the appropriate amount of water. You might also find our Henderson-Hasselbalch Calculator useful.