A Self-Learning Manual - Institution of Engineers Mauritius

A Self-Learning Manual
Mastering Different Fields of Civil Engineering Works (VC-Q&A Method) Vincent T. H. CHU
there is no free space left for acetylene gas. It also prevents the formation
of high-pressure air pockets inside the cylinder. Dissolved acetylene in
acetone will no longer be in contact with oxygen and is not subject to
decomposition. Acetone is used because it is capable of dissolving large
amount of acetylene gas under pressure without changing the nature of the
gas.
The cylinders for gas welding i.e. oxygen cylinders and acetylene cylinders,
when not in use should be stored separately because any mixture of these
gases resulting from accidental leakage can be highly explosive. When in
use, acetylene cylinders should always be kept in upright position.
Otherwise, acetone liquid will be drawn from the cylinders with the gas if
they are kept horizontally, resulting in significant leakage of acetone liquid
will result.
Note: Oxygen and acetylene gas cylinders are commonly used in construction sites for
gas welding.
392
Fig. Acetylene gas cylinder
erected in upright position