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Basic principles and advantages of Shanghai Yetuo vacuum drying oven
release time:2024-01-09  |  Browse:2169

Vacuum drying oven - Basic principles and advantages of vacuum drying oven

A vacuum drying oven is a device used for drying in a vacuum environment, and its basic principles and advantages are as follows:

Vacuum drying oven - Basic principles and advantages of vacuum drying oven

Basic principle:

Vacuum environment: The vacuum drying oven creates a low-pressure, low-temperature vacuum environment by extracting air from the inside of the oven.

Reduced pressure evaporation: In a vacuum state, the boiling point of water decreases, allowing it to evaporate at a lower temperature. Therefore, the vacuum drying oven uses the principle of vacuum evaporation to evaporate the moisture in the sample.

Evaporative cooling: As water evaporates, the surface temperature of the sample decreases, resulting in an evaporative cooling effect. This helps to avoid excessive heating of the sample.

Vacuum drying oven - Basic principles and advantages of vacuum drying oven

advantage:

Low temperature drying: Due to the low boiling point of water under reduced pressure, a vacuum drying oven can complete the drying process at a relatively low temperature, which is beneficial for retaining thermosensitive substances.

Avoid oxidation: In a vacuum environment, the concentration of oxygen is low, which can slow down or avoid the oxidation reaction of some substances, especially for some easily oxidizable samples.

Avoid surface crust formation on the sample: Due to the evaporative cooling effect, the sample surface is less prone to crust formation, which is beneficial for the uniformity of drying.

Retaining volatile substances: For volatile substances, a vacuum environment helps to evaporate them more quickly from the sample, improving the drying efficiency of the sample.

Preventing cross contamination: In a vacuum state, the presence of microorganisms and particulate matter in the air is reduced, which helps prevent cross contamination of the sample.

Widely applicable: Suitable for experiments with high sample requirements, such as biomedical, pharmaceutical, food industry and other fields.

The Shanghai Yetuo vacuum drying oven uses the principle of reduced pressure evaporation to dry at lower temperatures, which is beneficial for protecting the properties and structure of samples and is suitable for experiments and applications that require temperature sensitive substances.

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