Thymol Blue, Powder
Synonym: Thymolsulfonphthalein, sodium salt.
Brown-black crystalline powder.
Transitions from red to yellow at pH 1.2–2.8 and from yellow to blue at pH 8.0–9.6.
Synonym: Thymolsulfonphthalein, sodium salt.
Brown-black crystalline powder.
Transitions from red to yellow at pH 1.2–2.8 and from yellow to blue at pH 8.0–9.6.