2. Material and methods
2.1. Materials
Nitrates and chlorides of Ce(III), Co(II), Cu(II) and Mn(II) (thereafter denoted as catalysts) were purchased from Sigma Aldrich and Chem Supply. Note that nitrates of transition metals tend to explode on heating, limiting their sample size in the experiments. Sodium thiosulfate 99%, cyclohexane 99%, cobalt(II) 2-ethylhexanoate 65% and potassium iodide 99% were obtained from Sigma Aldrich. We purchased glacial acetic acid from Ajax-Finechem Pty. Ltd. and chloroform from Lab-Scan Analytical Science. Hydrogen peroxide, 30%, was provided by Chem-Supply. Iodine monochloride and 1-hexene were supplied by Merck. Ultra high purity (UHT) oxygen and nitrogen gases were obtained from Air Liquide. We employed commercial raw linseed oil (Sceneys Pty. Ltd., Australia) purchased in a local hardware store.