why we use only vanilline , acetanilide,& caffeine For the
Calibration of melting point appartus?
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Answer Posted / s.narayana
vanilline - 81°C to 83°C (range-1.5°)
Acetanilide - 164°C to 165.7°C (range-1.0°)
Caffeine - 235.6°C to 237.5°C (range-1.0°)
All three standards starting & Ending points is within 1.5°
only.
In our operational way also it covers minimum, middle &
Maximum calibration covered.
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