Bromothymol Blue Solution R3
Warm 0.1 g of bromothymol blue with 3.2 mL of 0.05m sodium hydroxide and 5 mL of ethanol (90%). After solution is effected, add sufficient ethanol (90%) to produce 250 mL.
Warm 0.1 g of bromothymol blue with 3.2 mL of 0.05m sodium hydroxide and 5 mL of ethanol (90%). After solution is effected, add sufficient ethanol (90%) to produce 250 mL.