In this passage, the quotation is well-introduced. The author of the quotation is identified, as is the quotation's relation to the previous statement. From the introduction, the reader can detect the contrast between the quotation and the first sentence of the paragraph. Achieving Variety when Introducing Quotations.
(also cinnamic aldehyde, Î²-phenylacrolein), C 6 H 5 CH=CHCHO, a fatty-aromatic unsaturated aldehyde; a colorless liquid with the characteristic odor of cinnamon. It has a boiling point of 252Â°C and a density of 1.110 g/cm 3 (at 20Â°C). It is poorly soluble in water and very soluble in alcohol and ether. Cinnamaldehyde is a component of many essential oils (cinnamon oil and others).
Damico...you're correct that DCM is soluble in water, but for practical purposes it is not soluble in water. DCM's solubility in water is quite low and is capable of being used in separations from aqueous solution. It is also true that oil is soluble in water, but the solubility is very very low. Everything is soluble to an extent. I would never pour oil into drinking water, separate and then drink the water. Some oil will remain, but for purposes of separation we consider DCM to be insoluble.