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Determination of Distillation Range of Medicine (CAT#: STEM-PPA-0156-YJL)

Introduction

Distillation plays an important role in the pharmaceutical industry where single stage batch distillations are frequently used and not the multistage distillation in columns studied at university. Some liquid medicines have a certain distillation range, and the determination of the distillation range can distinguish or check the purity of the medicine.




Principle

The boiling or distilling range of a liquid is the temperature interval,corrected for a pressure of 101.3 kPa within which the liquid,or a specified fraction of the liquid,distills under the conditions specified in the test. The lowerlimit of the range is the temperature indicated by the thermometer when the first drop of condensate leaves the tip of the condenser, and the upper limit is the temperature at which the last drop evaporates from the lowest point in the distillation flask; it may also be the temperature observed when the proportion specified in the individual monograph has been collected.

Applications

Pharmaceutical industry; Petroleum industry

Procedure

1. Install the device and add the sample
2. Plug the thermometer
3. Heat
4. Read and record the temperature

Materials

• Sample Type: liquid
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