Description
Thymol Blue, Water Soluble, R1-EAgent, ACS is used as a pH indicator. It is insoluble in water but it is soluble in alcohol and dilute alkali solutions. It transitions from red to yellow at pH 1.2-2.8 and from yellow to blue at pH 8.0-9.6. The R1-EAgent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured R1-EAgent grade products meet the toughest regulatory standards for quality and purity.
