On the crystal growth of 'tris thiourea chromium(III) sulphate', 'potassium thiourea thiocyanide' and 'bis thiourea iron(II) sulphate'

Abstract

We argue that the 'tris thiourea chromium(III) sulphate' crystal (Madhurambal et al. in J Therm Anal Calorim 108:905-910, 2012), potassium thiourea thiocyanide crystal (Ramamurthi et al. in J Therm Anal Calorim 104:943-947, 2011) and bis thiourea iron(II) sulphate crystal (Madhurambal et al. in J Therm Anal Calorim 108:911-914, 2012) are actually thiourea.