The recommended amount of household bleach to use per litre of water is 2 drops (0.1 mL), assuming the bleach has a chlorine concentration of about 5.25%.
Detailed Explanation
Here's a breakdown of how to properly mix bleach and water, based on the provided reference:
Mixing Guidelines
- Water Temperature: Bleach is most effective when mixed with warm water around 20˚C (68˚F).
- Bleach Concentration: The standard recommendation assumes your bleach has about 5.25% chlorine.
- Ratio: Use 2 drops (0.1 mL) of bleach for every 1 litre (4 cups) of water.
Practical Tips
- Accurate Measurement: Use a dropper or measuring spoon with millilitre markings to ensure you are using the right amount of bleach.
- Ventilation: Ensure good ventilation when mixing or using bleach solutions to avoid inhaling fumes.
- Mixing Order: Always add bleach to water, not the other way around, to prevent splashing and potential reactions.
Table Summary
| Ingredient | Amount | Notes |
|---|---|---|
| Bleach | 2 drops (0.1 mL) | Household bleach with approx. 5.25% chlorine |
| Water | 1 litre (4 cups) | Warm water (about 20˚C or 68˚F) |
Safety Precautions
- Always use gloves when handling bleach solutions.
- Avoid skin and eye contact.
- Do not mix bleach with other cleaning agents (especially ammonia), as this can produce hazardous gases.
- Keep out of reach of children and pets.
By following these guidelines, you can safely and effectively use a bleach solution for cleaning and disinfecting purposes.
