Not sure about chemical? But there are highly sensitivity alarm metres for detecting the leakage of liquid petroleum gas (LPG, butane, propane etc), and natural gas. One method I once used to find a leaking joint on a gas cooker was to apply washing-up liquid round the joints until a joint bubbling up pin-pointed the leak.
Usually hydrogen sulfide (rotten egg smell).
ethyl mercaptan
Ethanethiol is commonly used as an odorant in LPG to detect leaks.
hydrogen sulphidte
Besides electronic detectors, there are 2 common means. The first is smell. A chemical- mercaptan- is added to LPG that gives it a horrible smell. The second is bubbles. Connections in piping can be checked for leaks with a soap solution. If it is leaking, it makes bubbles at the point of the leak.
Mercaptan
ethyl mercaptan
ethanithiol ( IUPAC) ethyl mercaptan is added in lpg to detect leakage by the odour.
Ethanethiol is commonly used as an odorant in LPG to detect leaks.
hydrogen sulphidte
Ethyl Mercaptane is C2H5SH. It is a sulphur containing organic compound. It is added into LPG so as to detect any leakage of LPG. The Pungent smell that comes from LPG is tht of ethyl mercaptane,otherwise LPG is an odourless gas.
hydrogen sulphide...
Besides electronic detectors, there are 2 common means. The first is smell. A chemical- mercaptan- is added to LPG that gives it a horrible smell. The second is bubbles. Connections in piping can be checked for leaks with a soap solution. If it is leaking, it makes bubbles at the point of the leak.
Natural gas is odourless. Gas for domestic use - has chemicals added to create a smell, so leaks can be detected.
yes
Yes, Liquified Petroleum Gas is a Gas. It is a mixture of butane and propane. Also ethyl mercaptan is added to LPG to detect the gas leakage.
Mercaptan
Mercapta is added to LPG to make sure wheather it is leaking or not.