As a chemical engineer with a focus on petrochemical products, I often deal with the differentiation and application of various hydrocarbons. Let's delve into the specifics of kerosene and paraffin to clarify whether they are indeed the same.

Kerosene, also known as paraffin oil, lamp oil, and by the obsolete term "coal oil," is a combustible hydrocarbon liquid that is derived from petroleum. It is a clear liquid at room temperature and is primarily used as a fuel in various applications. Kerosene is a relatively light fuel, with a lower flash point compared to other petroleum products like diesel or gasoline. It is commonly used in heating appliances, jet engines, and as a fuel for certain types of lamps. The term "paraffin" is sometimes used interchangeably with kerosene, but this can lead to confusion.

Paraffin wax, on the other hand, is a distinct substance from kerosene. It is a waxy solid that is also extracted from petroleum. Paraffin wax is composed of a mixture of hydrocarbons, primarily straight-chain alkanes, and has a higher melting point than kerosene. It is used in a variety of applications, including candle making, as a coating for fruit to extend shelf life, and in the medical field for its low melting point which allows it to be used in heat therapy.

The confusion between kerosene and paraffin likely stems from the fact that both are derived from petroleum and both contain the word "paraffin." However, they are chemically and physically different substances with distinct uses.

Key Differences:


1. State at Room Temperature: Kerosene is a liquid, while paraffin wax is a solid.

2. Flash Point: Kerosene has a lower flash point, making it more prone to ignite than paraffin wax.

3. Melting Point: Paraffin wax has a higher melting point compared to kerosene.

4. Usage: Kerosene is used as a fuel, whereas paraffin wax is used in applications that require a solid wax with a low melting point.

In conclusion, while kerosene and paraffin wax share a common origin from petroleum and the term "paraffin" is associated with both, they are not the same substance. Each has unique properties and applications that set them apart.

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Kerosene, also known as paraffin, lamp oil, and coal oil (an obsolete term), is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in industry as well as households. ... Paraffin wax is a waxy solid extracted from petroleum.read more >>