更多benzoic例句

1. Of the former, salt and sugar are examples; of the latter, formaldehyde and possibly benzoic acid.
2. It differs from that of China, and from the true balsams, in not containing benzoic acid.
3. If the surface of the liquid immediately becomes red, benzoic acid is present.
4. A white flocculent precipitate shows the presence of considerable benzoic acid.
5. If a red color appears immediately on the surface, it shows the presence of benzoic acid.