Stream distillation-purification of organic compounds

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Discussion Overview

The discussion revolves around the process of steam distillation and its effects on the boiling point of organic compounds. Participants explore the implications of water vapor pressure in relation to the boiling point of the organic mixture during the distillation process.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant questions whether the transfer of water vapors increases the atmospheric pressure around the organic mixture, suggesting that this would require a higher boiling point for the mixture.
  • Another participant asserts that the vessel is open, implying that the pressure does not increase significantly.
  • A subsequent reply challenges the idea that water vapor increases the boiling point, asking how it could do so if it is supposed to reduce the boiling point.
  • Another participant proposes that water vapor does not reduce the boiling point directly but instead forms a complex with the organic compound, which is then carried along with the steam.

Areas of Agreement / Disagreement

Participants express differing views on the effects of water vapor on the boiling point of the organic mixture, indicating that the discussion remains unresolved with multiple competing perspectives.

Contextual Notes

There are assumptions regarding the behavior of water vapor and its interaction with the organic mixture that remain unaddressed, as well as the specific conditions of the distillation process that may influence the outcomes discussed.

Frigus
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when we transfer water vapours from steam generator isn't it like that the pressure of atmosphere around the organic mixture will increase so we have to boil the organic mixture more so as to make equal the pressure of atmosphere which is water vapour pressure + pressure of atmosphere is equal to the pressure of the organic mixture, as we have to reduce the boiling point of organic mixture but as way do like this shouldn't the boiling point of the mixture will increase.
 
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Hemant said:
when we transfer water vapours from steam generator isn't it like that the pressure of atmosphere around the organic mixture will increase

No. The vessel is open.
 
Borek said:
No. The vessel is open.
How water vapour can reduce the boiling point as it is increasing the pressure surrounding the organic mixture.
 
Not reducing the boiling point at all. It is forming a complex with water vapor and being carried along with the steam.
 

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