| 释义 |
thymol blue
thymol blue[thī‚mȯl ′blü] (organic chemistry) C6H4SO2OC[C6H2(CH3)(OH)CH(CH3)2]2 Brown-green crystals soluble in alcohol and dilute alkalies, insoluble in water, decomposes at 223°C; used as acid-base pH indicator. thymol blue
thy·mol blue [C.I. 52025] a dye used as an acid-base indicator, with a pK value at 1.7 and another at 8.9; red at pH values below 1.2, yellow between 2.8 and 8, and blue above 9.6. |