Melting point instrument use and use matters needing attention

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Melting point instrument use and use matters needing attention

usefulness
According to the definition of physical chemistry, the melting point of a substance refers to the temperature at which the substance changes from a solid to a liquid. In the field of organic chemistry, melting point measurement is the basic means of identifying the nature of a substance, and is one of the important methods for purity measurement. Therefore, the melting point analyzer has an important position in the chemical industry and medical research, and is an essential instrument for the production of drugs, perfumes, dyes and other organic crystalline substances.
Use caution
Melting point measurement is the basic means to identify the nature of a substance and is one of the important methods for purity determination. Therefore, the melting point analyzer has an important position in the chemical industry and medical research, and is an essential instrument for the production of drugs, perfumes, dyes and other organic crystalline substances. The problem with its attention can increase the life of the instrument.
1. The sample must be toasted as required, crushed in a dry and clean mill, and the sample is filled and filled with a free-fall tapping capillary. The filling height should be consistent. The specific requirements should be in accordance with the Pharmacopoeia.
2. Care must be taken when inserting and removing capillaries to avoid breakage.
3. The linear heating rate is different, the greenhouse results are also inconsistent, and a certain specification is required.
4. The sample to be tested is preferably filled with five capillaries at a time. The average of the three readings is taken as the measurement result to eliminate the accidental error caused by capillary and sample preparation.
5. Use a soft cloth to remove any contaminated material before inserting the capillary into the instrument to prevent the oil bath from getting dirty.

6. If the oil bath tube needs to be replaced, proceed as described in the preparations before use.


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