Bromothymol blue changes color over a pH range from 6.0 (yellow) to 7.6 (blue). It is a good indicator of dissolved carbon dioxide (CO2) and other weakly acidic solutions.
Aqueous solution 0.04%.
Mfr. Number: 100-6974-BX
Description: Bromothymol Blue, Solution 1 L
Mfr. Number: 005-6974-BX
Description: Bromothymol Blue, Solution 500 ml
Mfr. Number: 001-6974-BX
Description: Bromothymol Blue, Solution 100 ml