<P> Acid -- base titration is performed with a bromothymol blue indicator , when it is a strong acid -- strong base titration , a phenolphthalein indicator in weak acid -- strong base reactions , and a methyl orange indicator for strong acid -- weak base reactions . If the base is off the scale , i.e. a pH of > 13.5 , and the acid has a pH > 5.5 , then an Alizarine yellow indicator may be used . On the other hand , if the acid is off the scale , i.e. a pH of < 0.5 , and the base has a pH < 8.5 , then a Thymol Blue indicator may be used . </P>
<P> Acid -- base titration is performed with a bromothymol blue indicator , when it is a strong acid -- strong base titration , a phenolphthalein indicator in weak acid -- strong base reactions , and a methyl orange indicator for strong acid -- weak base reactions . If the base is off the scale , i.e. a pH of > 13.5 , and the acid has a pH > 5.5 , then an Alizarine yellow indicator may be used . On the other hand , if the acid is off the scale , i.e. a pH of < 0.5 , and the base has a pH < 8.5 , then a Thymol Blue indicator may be used . </P>
indicator for titration of strong acid with strong base
indicator for titration of strong acid with strong base
bromothymol blue
bromothymol blue