Question

Как правильно смешать воду и концентрированную серную кислоту

Answer 1

Однако ни в коем случае при разбавлении нельзя добавлять воду в кислоту.
Существует строгое правило: лить кислоту в воду!
Нарушение этого правило может привести к трагедии.
Дело в том, что при приготовлении растворов часто происходит их разогрев.
При приготовлении растворов серной кислоты происходит сильный разогрев.
Представьте себе, что будет, если нарушить правило, и добавить воду в кислоту.
Вода, попав в массу концентрированной кислоты, моментально разогреется до кипения - произойдет мощный и опасный выброс кислоты.

Answer 2

Mixing Water and Concentrated Sulfuric Acid

To properly mix water and concentrated sulfuric acid, it's important to follow specific safety guidelines and procedures. Here's a detailed guide on how to do it:

1. Safety Precautions: - Always wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat to protect yourself from potential splashes or spills of the acid. - Work in a well-ventilated area or use a fume hood to avoid inhaling any fumes. - Keep a bottle of baking soda or another neutralizing agent nearby in case of spills or accidents.

2. Step-by-Step Mixing Process: - Start by adding the concentrated sulfuric acid to the water, not the other way around. This is important to prevent a violent reaction that can occur if water is added to the acid. - Slowly pour the concentrated sulfuric acid into a large container of water while stirring gently. It's crucial to add the acid to the water slowly to control the heat generated by the dilution process. - Continue stirring until the acid is fully mixed with the water. The solution will generate heat during the mixing process, so be cautious and avoid splashing.

3. Dilution Guidelines: - The general rule of thumb for diluting concentrated sulfuric acid is to add the acid to water in a ratio of approximately 1:10 (acid to water). - For example, if you need to dilute 100ml of concentrated sulfuric acid, you would slowly add it to 1000ml of water while stirring gently.

4. Final Notes: - After the acid has been diluted, it can be used for various purposes in a laboratory or industrial setting. Always label the container with the appropriate concentration and handle it with care.

Remember, handling concentrated sulfuric acid requires caution and adherence to safety protocols to prevent accidents and ensure personal safety. If you have any doubts or concerns, it's best to seek guidance from a qualified professional.