1. What is a Bleach to Water Ratio Calculator?

Definition: This calculator determines the amount of concentrated bleach needed to achieve a specific dilution in a given volume of water.

Purpose: It helps in preparing disinfectant solutions, water treatment, and cleaning solutions with precise concentrations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{bleach} \) — Volume of bleach needed (liters)
• \( desired_{ppm} \) — Target concentration (parts per million)
• \( V_{total} \) — Total volume of solution (liters)
• \( stock_{ppm} \) — Concentration of stock bleach (ppm)

Explanation: The formula calculates the proportional amount of concentrated bleach needed to achieve the desired concentration in the total volume.

3. Importance of Proper Bleach Dilution

Details: Correct bleach concentrations are crucial for effective disinfection while ensuring safety and material compatibility.

4. Using the Calculator

Tips: Enter the desired concentration (ppm), total solution volume (L), and stock bleach concentration (default 50,000 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 50,000-60,000 ppm (5-6% sodium hypochlorite). Industrial bleach may be stronger.

Q2: What are common desired concentrations?
A: Common disinfectant solutions range from 100-1000 ppm depending on application.

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

Q4: Does this account for chlorine degradation?
A: No, for older bleach, consider testing concentration or using fresh bleach.

Q5: Can I use this for other disinfectants?
A: The formula works for any dilution calculation if you know the stock concentration.