SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF THYMOL-BLUE, SEMIMETHYLTHYMOL-BLUE AND METHYLTHYMOL-BLUE .2. MONITORING OF THE SYNTHESES OF SEMIMETHYLTHYMOL-BLUE AND METHYLTHYMOL-BLUE
A new version of the direct spectrophotometric method for the simultaneous determination of Thymol Blue, Semimethylthymol Blue (SMTB) and Methylthymol Blue (MTB) was developed and used for monitoring syntheses of SMTB and MTB.