Continuous withdrawal of acetone from an acetylene cylinder could lead to what hazard?

Continuous withdrawal of acetone from an acetylene cylinder could lead to the hazard of explosion due to the nature of acetylene and its relationship with acetone. Acetylene is a gas that is dissolved in acetone in acetylene cylinders to stabilize it and allow for safe storage. When acetone is continuously withdrawn, the concentration of acetylene can rise to levels that create a dangerous situation.

If the pressure in the cylinder drops significantly due to the withdrawal of acetone, it can lead to the release of acetylene gas at an uncontrolled rate. Acetylene can ignite under high pressure or if there is a spark present, particularly because it is highly flammable and explosive under certain conditions. When the acetylene is no longer dissolved in acetone, its escape can lead directly to an explosive situation, rather than just a pressure loss or other related issues that could be resolved safely.

Thus, the continuous withdrawal of acetone from the cylinder creates an environment where the risk of explosion significantly escalates.