Laboratory Safety Precaution
1) Wear safety goggles and lab coat at all times while working in the laboratory.
2) Aniline is toxic and irritating.
3) Sodium nitrite is a toxic oxidizer.
4) Concentrated hydrochloric acid is toxic. β‐Naphthol is irritating.
5) Sodium hydroxide is toxic and corrosive.
6) Ethanol is flammable and irritating. Keep away from flames and other heat sources.
7) Wash your hands thoroughly with soap or detergent before leaving the laboratory.