Answer:
Cocaine
Step-by-step explanation:
The Scott test is a presumptive, qualitative colorimetric test for the presence of cocaine that is carried out in the laboratory or on the field. It consists of 3 steps;
- Suspected substance is mixed with cobalt thiocyanate in an aqueous/glycerin solution.
- Acidification of the resulting solution using HCl.
- Extraction of substance's precipitate using chloroform
Blue organic phase indicates the presence of cocaine in substance while colourless organic phase indicates the absence.