"Could it be that we added too much of the drug at once and the reaction conditions couldn't catch up?"

I raised my hand to stop the reaction, opened the bottle cap, and wanted to check the inside. Because I knew that this reaction would not produce anything toxic or harmful, I didn't take any protective measures. Dave pulled me aside and said, "Be careful! This gas is toxic."

I also smelled it, but I was too close to the bottle and inhaled a lot of gas at once, causing a poisoning reaction and dizziness.

"This is not right... quickly get everyone out..."

I reminded the two of them, struggling...