Azeotrope
Definition
A liquid mixture consisting of two or more chemical components that boils at a constant and fixed temperature, maintaining its identical structural composition in both the liquid and vapor phases. Because the generated vapors have exactly the same proportions of substances as the liquid from which they originate, an azeotrope cannot be separated or purified by simple fractional distillation, behaving thermodynamically like a single pure compound and requiring special separation methods, such as extractive azeotropic distillation.
Bilingual Equivalents
- Azeotrope
Grammatical & Source Details
| Inflection Type | Neuter noun, regular structural plural and case variations within chemical and industrial engineering lexicons. |
| Formation | Neologistic borrow from French ('azéotrope'), structurally formed from the Greek privative prefix 'a-', 'zeo' (to boil), and 'trope' (turn, change). |
| Spelling / Pronunciation | [a.ze.o.ˈtrop] |
| Source | Encyclopedia of Chemical Thermodynamics, Phase Equilibria and Engineering Metrics |
Contextual Usage Examples
RO: Amestecul format din alcool etilic și apă în proporție de nouăzeci și șase la sută formează un azeotrop cu punct de fierbere minim.
EN: The mixture of ninety-six percent ethyl alcohol and water forms an azeotrope with a minimum boiling point.
RO: Inginerul a constatat că sistemul a atins o stare de azeotrop, ceea ce a oprit modificarea concentrației în coloana de distilare.
EN: The engineer noted that the system reached an azeotrope state, which stopped the concentration change within the distillation column.
RO: Pentru a sparge acest azeotrop structural, echipa de cercetare a adăugat un al treilea solvent chimic în reactor.
EN: To break this structural azeotrope, the research team added a third chemical solvent into the reactor.
Idioms & Phrases
Azeotrop pozitiv / Positive azeotrope
RO: Amestec a cărui temperatură de fierbere este mai mică decât cea a oricăruia dintre componentele pure luate separat.
EN: A mixture whose boiling point temperature is lower than that of any of its pure components taken separately.
Azeotrop negativ / Negative azeotrope
RO: Amestec structural ce prezintă o temperatură de fierbere maximă, mai mare decât punctele de fierbere ale substanțelor constituente.
EN: A structural mixture presenting a maximum boiling temperature, higher than the boiling points of its constituent substances.
Punct de azeotrop / Azeotropic point
RO: Coordonată geometrică fixă pe diagrama de echilibru lichid-vapori unde curbele fazelor se intersectează identic.
EN: A fixed geometric coordinate on the liquid-vapor equilibrium diagram where the phase curves intersect identically.
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