|
Left hand threads on acetylene (fuel gas) are lefthand thread and is made from brass and all fittings are made from brass. If the fittings where made from copper the acetylene will react with copper to form copper acetylide and is potentially dangerous more so than acetylene
Quote from wikipedia
Copper(I) acetylide, or cuprous acetylide, is an inorganic chemical compound with the formula Cu2C2. It is a heat and shock sensitive high explosive, more sensitive than silver acetylide.
Copper acetylide can form inside pipes made of copper or an alloy with high copper content, which may result in violent explosion.[1] This was found to be the cause of explosions in acetylene plants, and led to abandonment of copper as a construction material in such plants.[2] Copper catalysts used in petrochemistry can also possess a degree of risk under certain conditions.[3]
Teacher mode off
Adrian
|