noun
chemical additive
Refers to substances added to food or other products for preservation, coloring, flavoring, etc. Often used in contexts discussing food safety or ingredient lists.
See also: 食品添加物
この食品には化学添加物が多く含まれている。
This food contains many chemical additives.
化学添加物を避けるために、自然食品を選んでいる。
I choose natural foods to avoid chemical additives.
食品添加物 specifically refers to food additives, while 化学添加物 is a broader term for chemical additives in general, often implying synthetic substances.
Compound of 化学 (chemistry) + 添加物 (additive).