Being in the arts and science department amuses me every day.
Elena Sheldon, Director of research, Diploma in Arts and Science, Berkeley, California
Answered May 19, 2020
Although both acetone and benzaldehyde are liquid substances, there are some differences between the two. Acetone is a colorless, volatile, and highly inflammable liquid, whereas benzaldehyde is a colorless to yellow, oily liquid with an almond smell. Acetone is the simplest member of ketone with a chemical formula of C3H6O.
On the other hand, benzaldehyde is an aromatic aldehyde with a chemical formula of C6H5CHO. Another difference between the two is their molecular weight. Benzaldehyde has a molecular weight of 106.124 g/mol, whereas acetone has a molecular weight of 58.08 g/mol. Another difference is that benzaldehyde has a higher boiling point compared to acetone.
Benzaldehyde has a boiling point of 178.7°C, whereas the boiling point of acetone is 56°C. Unlike acetone that is soluble in water, benzaldehyde does not dissolve well in water except in liquid ammonia. Benzaldehyde is used mostly in the production of perfumes, flavorings, and pharmaceuticals, whereas acetone is used mostly as a solvent for different chemical reactions.