Raise the temperature of the mixture at a rate of 1 to 2°C (2.0 to 3.5°F)/min until the aniline point has just been passed, as denoted by a definite, sudden brightening of the lamp filament,
Raise the temperature of the mixture at a rate of 1 to 2°C (2.0 to 3.5°F)/min until the aniline point has just been passed, asdenoted by a definite, sudden brightening of the lamp filament,