Synthesis Of Bromothymol And Naoh

The absorbance of a compound composed of Bromothymol and NaOH was measured using the UV/Vis spectrophotometer. Using the spectrophotometer, first the wavelength had to be corrected before measuring the actual absorbance. Bromothymol blue is used in numerous labs. It’s known as a pH sensitive dye which is used to determine the pH of a solution. It’s known as a weak acid but can also be a base (but that solely depends on the pH of the solution).1 Bromothymol changes color from either yellow to blue depending on the pH of the solution (either yellow for acidic or blue for basic, it also goes green if its neutral).1 It’s molecular formula is C27H28Br2O5S and has a molecular weight of 624.384 g/mol.1 The reason behind using bromothymol blue is self-explanatory.