NILE CHEMICALS
QUINALDINE RED INDICATOR |
|
C21H23N2 M.W. 430.32 | |
Absorption maximum l | 528 - 533 nm |
Absorptivity ( A 1% 1 cm, 1 max glacial | 1150 - 1250 |
acetic acid on dried substance ) | |
Water | < 5% |
Suitability as indicator | passes test |
pH colourlesss | 1.4 - 3.2 red |