Dichloromethane

Dichloromethane (pronunciation: /daɪˌklɔːroʊˈmiːθeɪn/), also known as methylene chloride, is a volatile, colorless liquid with a moderately sweet aroma. It is widely used as a solvent, and is a relatively simple halocarbon.

Etymology

The term "dichloromethane" is derived from its chemical structure. The prefix "di-" indicates the presence of two chlorine atoms, while "methane" refers to the simplest hydrocarbon structure, CH4. The term "methylene chloride" is an older name, referring to the methylene group (CH2) and the presence of chlorine.

Properties

Dichloromethane is a volatile, colorless liquid that is non-miscible with water but miscible with many organic solvents. It has a boiling point of 39.6 degrees Celsius and a melting point of -96.7 degrees Celsius. It is denser than water and its vapors are heavier than air.

Uses

Dichloromethane is primarily used as a solvent in various industrial applications. It is used in the production of polycarbonates and in the preparation of samples for gas chromatography. It is also used in paint strippers, degreasers, and in the decaffeination of coffee and tea.

Health Effects

Exposure to dichloromethane can have various health effects. Inhalation can cause dizziness, nausea, numbness in the fingers and toes, and even unconsciousness. Long-term exposure can lead to liver and lung damage, and it is classified as a potential human carcinogen.

Related Terms

External links

Medical encyclopedia article on Dichloromethane
Wikipedia's article - Dichloromethane

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Dichloromethane