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Boiling point is a temperature where the liquid-gas phase change occurs. It is one of the most important thermophysical properties for solvents. It is a physical constant like melting point and can be used to support the identification of compounds.
Several solvents have very low boiling points. Dithyl ether and dichloromethane are examples of these.
They are also very common in HPLC analysis. For example, water boils at 100 oC and ethanol (grain alcohol) boils at 78.2 oC. When a mixture of these two solvents is distilled, it forms an azeotrope. This azeotrope has a composition of 95% ethanol and 5% water by volume.
It is commonly used as a solvent for many chemical processes. It is a volatile solvent that dissolves a wide range of organic compounds.
DCM is also a very flexible solvent. It is often used in heat engine applications to extract mechanical energy from small temperature differences. It is the fluid that powers a drinking bird toy and it is also used as the fluid in holiday bubble lights.
It is also an ideal solvent for vapour degreasing, removing unwanted contaminants that standard parts cleaning can’t remove. It is also useful for stripping photoresist from printed circuit boards. It can also be used to break down the adhesive film in photographic films.
