What Safety Precautions Should Be Taken When Handling Sodium Metabisulfite And Its Reaction With Water?

When handling sodium metabisulfite, it is important to take the following safety precautions:

1. Wear appropriate personal protective equipment (PPE), including gloves and goggles, to prevent direct contact with the chemical.

2. Work in a well-ventilated area to avoid inhaling any fumes that may be released.

3. Keep sodium metabisulfite away from heat sources, as it can react violently with some oxidizing agents.

4. Store the chemical in a cool, dry place away from incompatible substances such as acids and alkalis.

When sodium metabisulfite reacts with water, the following precautions should also be taken:

1. The reaction produces sulfur dioxide gas, which is toxic and can cause respiratory irritation. Ensure adequate ventilation and wear appropriate PPE to prevent inhalation.

2. Avoid adding water too quickly or in large amounts, as this can cause a rapid release of sulfur dioxide gas.

3. Use caution when handling the resulting solution, as it may be acidic and irritate skin and eyes.

4. Dispose of any leftover solutions or materials containing sodium metabisulfite and its reaction products according to applicable regulations.