RS02RS02 + 41-R' Organic sulphides are oxidized to sulphoxides RSR + OI-R' H=0 RSOR + I-R'. A sample containing 0.1-0.5 mmole of sulphide or 0.02-0.08 mmole,RS02RS02 + 41-R' Organic sulphides are oxidized to sulphoxides RSR + OI-R' H=0 RSOR + I-R'. A sample containing 0.1-0.5 mmole of sulphide or 0.02-0.08 mmole .