COMPOUND RESPONSIBLE FOR BAD ODOUR IN LPG GAS

LPG gas is basically the mixture of propane and butane, and it is odorless in its natural state. The smell that we notice when there is a leak is actually the stench of an entirely different agent, called Ethyl Mercaptan. This substance is added to the gas when it leaves the main storage terminals.

But if it smells so bad, why is it added?

As we all know, LPG is very dangerous, because if it leaks, it can cause terrible fires and devastating explosions. To avoid this, Ethyl Mercaptan is added to the gas, which possesses that strong odor of rotten cabbages. The smell helps us detect when there is a leak, which actually makes a lot of sense from a safety and security perspective.

PROPERTIES:

Chemical Formula: C₂H₅SH

Appearance: Colorless liquid

Density: 0.816 g cm^-3

Boiling point: 35℃

      The density of atmospheric air is 1 g cm^-3. As the ethyl mercaptan density is less than the density of atmospheric air, it will float below the air. So, it is easy to smell and to identify the leakage of LPG.

PREVENTIVE ACTIONS: 

In the event of a gas leak or suspected leak,

1.      Stop the gas flow at the container

2.      Turn off all naked flames and eliminate all sources of ignition BUT do not turn electrical switches on or off.

3.      If leak is indoors, open all windows and doors, to disperse the gas.

4.      In the case of cylinders, disconnect the cylinder and move it outdoors to an open area.

5.      If the leak cannot be stopped or a significant leak has occurred, evacuate the premises.

6.      Contact your installer and contact the 24 hour gas emergency service at 0414506688

In the event of fire,

1. Contact the fire brigade (dial 999) and advise them that an LPG container is on the premises.
2. Turn off the gas supply at the LPG container if it is safe and practical to do so.
3. Evacuate the building