Loading…
Author: Charlie Cooke
Photo size: 2.3 Mpixels (6.63 MB uncompressed) - 1549x1496 pixels (5.2x5 in / 13.1x12.7 cm at 300 ppi)
Photo keywords: 30 seconds, aspirin, chemical tests, cobalt isothiocyanate, cutting agent, Sam Drake, University of Derby
Published in: Chemical tests