Experimental techniques Measuring melting and boiling points 13:03 Measurement 2.1 distance travelled by compound distance travelled by solvent chromatography drug purity melting points Criteria of purity Purification techniques 2.6 cm 2.1 cm Rf = 2.2.1 1.23 out in condenser HEAT distillate HEAT 2.2.2 Copyright © UCLES 2017 Methods of purification Measuring temperature, mass and volume 1