Mai i te salicylaldehyde na te tauhohenga methylation me te dimethyl sulfate.Whakaranuhia te 3kg o te konutai waihā ki roto i te wairewa wai 30%, tāpirihia te 12.2kg o te salicylaldehyde me te 80L o te wai i raro i te whakaoho, me te wera ki te koropupu.Āta tāpirihia te 12.9kg o te dimethyl sulfate, kia mau tonu te otinga tauhohenga kia 3 haora i muri i te taapiri, haere tonu ki te reflux mo te 2-3h i muri mai i te Chemicalbook…