Figure 2. Observed colours via spot test performed on groove tile with aryl halides and aromatic hydrocarbons (toluene and xylene) using anhydrous AlCl3 and chloroform

From

Greening Qualitative Organic Analysis: Spot Test to Detect Aromatic Hydrocarbons and Aryl Halides

Sujata Sengupta, Sharda Mahilkar Sonkar, Shivani Singh, Ankita Duggal, Mamta Siwach

World Journal of Chemical Education. 2022, 10(3), 110-113 doi:10.12691/wjce-10-3-4