What Is The Condensed Structural Formula Of Propane?


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Matthew Porter Profile
Matthew Porter answered
Propane is a three-carbon alkane that is produced as a by-product of natural gas processing and petroleum refining. It is commonly used as a fuel for engines, torches, barbecues, stoves and central heating at residences. Propane is normally a gas but it is compressible to a transportable liquid.

The molecular formula of propane is C3H8.

Its 2D structural formula can be seen in this image -

Its 3D structural image can be seen in this image -

The properties of propane are as follows:
• Molar mass: 44.1 g mol
• Appearance: Colorless gas
• Density: 2.0098 kg/m3 (gas), 581.2 kg/m3 (liquid)
• Melting point: -187.7 degrees Celsius, 85.5 K, -305.9 degrees Fahrenheit
• Boling point: -42.1 degrees Celsius, 231.1 K, -43.8 degrees Fahrenheit
• Solubility in water: 0.04 g/L

One of the main uses of propane currently is as liquefied petroleum gas (LPG) for use as car fuel. In the United States and Canada, LPG typically consists of around 90% propane and the rest largely butane and propylene plus odorants.
Liquefied petroleum gas is genuinely considered to be the 'greener' alternative to the more commonly used petroleum gasoline. It is becoming increasingly popular in the USA - 190,000 road vehicles use propane and over 450,000 forklift trucks use propane for power. In other parts of the world, propane motor fuel is referred to by the name 'Autogas'. Autogas is used by approximately 13 million vehicles across the world. Lawn care products such as trimmers, lawn mowers and leaf blowers also use propane for power.

As a general rule, the warmer the country, the higher the butane content of LPG. This means that LPG can commonly be a 50-50 split between propane and butane and in some places the butane content can be as high as 75%.
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