1. What is a Chlorine Bleach Dilution Calculator?

Definition: This calculator determines the volume of concentrated bleach needed to achieve a desired chlorine concentration in a given volume of water.

Purpose: It helps in preparing accurate disinfectant solutions for water treatment, sanitation, and cleaning applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{bleach} \) — Volume of bleach needed (liters)
• \( C_{desired} \) — Desired chlorine concentration (ppm)
• \( V_{total} \) — Total volume of solution (liters)
• \( C_{stock} \) — Concentration of stock bleach (ppm)

Explanation: The formula calculates the proportional amount of concentrated bleach needed to achieve the target dilution.

3. Importance of Accurate Dilution

Details: Proper dilution ensures effective disinfection while preventing waste of chemicals or creating solutions that are too strong and potentially hazardous.

4. Using the Calculator

Tips: Enter the desired concentration in ppm, total solution volume in liters, and stock bleach concentration (default 5000 ppm for household bleach). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical stock bleach concentration?
A: Household bleach is typically 5,000-6,000 ppm (5-6% sodium hypochlorite). Industrial bleach may be stronger (10-12%).

Q2: What are common desired concentrations?
A: Common uses: 50-200 ppm for surface disinfection, 2-5 ppm for drinking water treatment.

Q3: How do I convert percentage to ppm?
A: 1% = 10,000 ppm (e.g., 5% bleach = 50,000 ppm).

Q4: Does this account for chlorine degradation?
A: No, fresh bleach should be used. Old bleach may have lower actual concentration.

Q5: Can I use this for other disinfectants?
A: The same principle applies, but concentrations and effectiveness vary by chemical.