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).
Here are the solubilities for a number of fatty acids at 20oC in a polar solvent, such as water, and a non-polar solvent, such as benzene. Acetic acid (2 carbon chain) and butanoic acid (4 carbon chain) have an infinite solubility in water.he addition of the-OH onto the alkane to make the similar chain alcohol, changes the non-polar alkane into a polar alcohol. The increase in chain length on the alcohol slowly decreases the polar nature, and hence decreases the solubility.