The upper critical solution temperature (UCST) or upper consolute temperature is the critical temperature above which the components of a mixture are miscible in all proportions. The UCST is in general dependent on pressure.
Note that some information is displayed differently in the Unabridged. To access the complete Unabridged Dictionary, with an additional 300,000 words that aren't in our free dictionary, start a free trial.  The word upper indicates that the UCST is an upper bound to a temperature range of partial miscibility, or miscibility for certain compositions only. For example, hexane-nitrobenzene mixtures have a UCST of 19 °C, so that these two substances are miscible in all proportions above 19 °C but not at lower temperatures. A solid state example is the palladium-hydrogen system which has a solid solution phase (H 2 in Pd) in equilibrium with a hydride phase (PdH n) below the UCST at 300 °C. Above this temperature there is a single solid solution phase. In the phase diagram of the mixture components, the UCST is the shared maximum of the concave down spinodal and binodal (or coexistence) curves. The UCST is in general dependent on pressure con·so·lute. adj. Of or relating to two or more fluid substances that are capable of being mixed in all proportions under given conditions. [Late Latin. , dissolved together: Latin.  1 Show where liquidus, solidus, and the miscibility gap are represented in a binary phase diagram. 2  Create a binary phase diagram from temperature and composition data. 3  Derive phase and composition information from a Type 1 or Type 2 binary phase diagram. There is no change of state (it is always solid or always liquid). This type has a characteristic synclinal coexistence curve. Prof. Sadoway defines consolute temperature, describes the miscibility gap, and then demonstrates the visual effect of the miscibility gap in a mixture of water and the liquor ouzo. (thermodynamics). The upper temperature of immiscibility for a two-component liquid system. Also known as upper consolute temperature; upper critical solution temperature. consolute temperature. (thermodynamics). The upper temperature of immiscibility for a two-component liquid system. Also known as upper consolute temperature; upper critical solution temperature. 1  Facebook. 2  Twitter. 1 Compare binary and unary phase diagrams. 2  Show where liquidus, solidus, and the miscibility gap are represented in a binary phase diagram. 3  Create a binary phase diagram from temperature and composition data. 4  Derive phase and composition information from a Type 1 or Type 2 binary phase diagram. There is no change of state (it is always solid or always liquid). This type has a characteristic synclinal coexistence curve. Prof. Sadoway defines consolute temperature, describes the miscibility gap, and then demonstrates the visual effect of the miscibility gap in a mixture of water and the liquor ouzo. The upper critical solution temperature (UCST) or upper consolute temperature is the critical temperature above which the components of a mixture are miscible in all proportions. A solid state example is the palladium-hydrogen system which has a solid solution phase (H 2 in Pd) in equilibrium with a hydride phase (PdH n) below the UCST at 300 °C. Above this temperature there is a single solid solution phase. In the phase diagram of the mixture components, the UCST is the shared maximum of the concave down spinodal and binodal (or coexistence) curves. The UCST is in general dependent on pressure After completing this session, you should be able to: 1  Compare binary and unary phase diagrams. 2  Show where liquidus, solidus, and the miscibility gap are represented in a binary phase diagram. 3  Create a binary phase diagram from temperature and composition data. There is no change of state (it is always solid or always liquid). This type has a characteristic synclinal coexistence curve. Prof. Sadoway defines consolute temperature, describes the miscibility gap, and then demonstrates the visual effect of the miscibility gap in a mixture of water and the liquor ouzo.
http://www.merriam-webster.com/dictionary/consolate https://en.wikipedia.org/wiki/Upper_critical_solution_temperature http://www.thefreedictionary.com/consolute http://ocw.mit.edu/courses/materials-science-and-engineering/3-091sc-introduction-to-solid-state-chemistry-fall-2010/solid-solutions/34-binary-phase-diagrams-complete-solubility/ http://encyclopedia2.thefreedictionary.com/consolute+temperature http://ocw.mit.edu/courses/materials-science-and-engineering/3-091sc-introduction-to-solid-state-chemistry-fall-2010/solid-solutions/34-binary-phase-diagrams-complete-solubility/ https://en.wikipedia.org/wiki/Upper_critical_solution_temperature http://ocw.mit.edu/courses/materials-science-and-engineering/3-091sc-introduction-to-solid-state-chemistry-fall-2010/solid-solutions/34-binary-phase-diagrams-complete-solubility/
consolute temperature meaning