Because it has a very strong odor; it's easily detected even in minute quantities.
And it has a vapor pressure relatively close (really relatively) to propane, for which it is used as an odorant.
in order to find leakages in tanks of liqid petroleom gas
Ethyl Mercaptan or Ethanethiol has a "strongly disagreeable" odor that resembles that of leeks, onions or cooked cabbage, but is quite distinct.
That is not a very clear question. Are you asking if the materials left in a propane tank could be toxic if you use the tank for water? If so, then the answer is yes, but you are not going to be having a lot of ethyl mercaptan. An old propane tank can contain a significant amount of hydrocarbons, usually in the gasoline and diesel boiling point range.
Methyl Ethyl Ketone, or Butanone is a colorless solvent with with the formula CH3C(O)CH2CH3. A sharp smelling solvent with an odor of butterscotch and acetone and is actually related to acetone. Its used in dissolving paint, lacquer, varnishes and a cleaning agent.
Sometimes dimethyl sulfide is used (CH3)2S, its rather stinky (union-like)
Actually, no. Methane itself does not have an especially pungent odor, making it nearly impossible to detect leaks via sense of smell alone. Thus, a foul-smelling compound is added to methane before it's used commercially, for safety reasons. The smell most people associate with methane is actually that of methyl mercaptan (methanethiol), a sulfur-containing compound.
Yes it is. Natural gas has no smell of its own. Methyl mercaptan is used to add a bad smell to natural gas to warn you if a gas leak should occur.
None. Ethyl mercaptan is not used to odorize natural gas. The normal odorant used for natural gas is tertiary butyl mercaptan, which is present at a concentration of approximately 0.5 pound/million standard cubic feet of gas.
"Historically, first gas odorization was carried out in Germany in 1880's by Von Quaglio who used ethyl mercaptan for detecting gas leakages of blue water gas."
There is no difference unless the commercial application is used as a propellant then it will not have the ethyl mercaptan added which gives it the strong odor.
That is not a very clear question. Are you asking if the materials left in a propane tank could be toxic if you use the tank for water? If so, then the answer is yes, but you are not going to be having a lot of ethyl mercaptan. An old propane tank can contain a significant amount of hydrocarbons, usually in the gasoline and diesel boiling point range.
Methyl Ethyl Ketone, or Butanone is a colorless solvent with with the formula CH3C(O)CH2CH3. A sharp smelling solvent with an odor of butterscotch and acetone and is actually related to acetone. Its used in dissolving paint, lacquer, varnishes and a cleaning agent.
Sometimes dimethyl sulfide is used (CH3)2S, its rather stinky (union-like)
It is the smelliest substance know, and LPG is odorlessi'm 12 and I know the answer so wat..
The chemical smell used in propane is ethyl mercaptan. Cut an apple in half and leave it under the seat of the car for a couple of days. Don't forget about it or you may have 2 bad smells. The apple absorbs the odor.
Actually, no. Methane itself does not have an especially pungent odor, making it nearly impossible to detect leaks via sense of smell alone. Thus, a foul-smelling compound is added to methane before it's used commercially, for safety reasons. The smell most people associate with methane is actually that of methyl mercaptan (methanethiol), a sulfur-containing compound.
methyl mercaptan
Ethanol (or ethyl alcohol)
it is used in flavouring