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).
Preparation Instructions This product is soluble in ethanol (50 mg/ml), yielding a clear, colorless solution. It is also soluble in water (10 mg/ml) and glycerol (50 mg/ml) at room temperature. Vanillin is freely soluble in chloroform, ether, carbon disulfide, glacial acetic acid, and pyridine.It is also soluble in oils and aqueous solutions of alkali hydroxides. 1 References 1.t is also soluble in water (10 mg/ml) and glycerol (50 mg/ml) at room temperature. Vanillin is freely soluble in chloroform, ether, carbon disulfide, glacial acetic acid, and pyridine. It is also soluble in oils and aqueous solutions of alkali hydroxides. 1 References 1.