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Cyclohexane has two crystalline phases. The high-temperature phase I, stable between 186 K and the melting point 280 K, is a plastic crystal, which means the molecules retain some rotational degree of freedom. The low-temperature (below 186 K) phase II is ordered.
Phase behavior Triple point: 279.48 K (6.33 °C), 5.388 kPa [3] Critical point: 554 K (281 °C), 4070 kPa Std enthalpy change of fusion, Δ fus H o: 2.68 kJ/mol crystal I → liquid Std entropy change of fusion, Δ fus S o: 9.57 J/(mol·K) crystal I → liquid Std enthalpy change of vaporization, Δ vap H o: 32 kJ/mol Std entropy change of ...
e.g. iso-octane, Aliquat 336 (methyltrioctylammonium chloride, a phase transfer catalyst), water. or: cyclohexane, bmim-PF 6 (an ionic liquid), water; Hydrophobic ionic liquid – water – hydrocarbon systems e.g. 1-butyl-3-methylimidazolium hexafluorophosphate – water – cyclohexane
In thermodynamics, the phase rule is a general principle governing multi-component, multi-phase systems in thermodynamic equilibrium.For a system without chemical reactions, it relates the number of freely varying intensive properties (F) to the number of components (C), the number of phases (P), and number of ways of performing work on the system (N): [1] [2] [3]: 123–125
Reversed-phase liquid chromatography (RP-LC) is a mode of liquid chromatography in which non-polar stationary phase and polar mobile phases are used for the separation of organic compounds. [1] [2] [3] The vast majority of separations and analyses using high-performance liquid chromatography (HPLC) in
Most methylcyclohexane is extracted from petroleum but it can be also produced by catalytic hydrogenation of toluene: CH 3 C 6 H 5 + 3 H 2 → CH 3 C 6 H 11. The hydrocarbon is a minor component of automobile fuel, with its share in US gasoline varying between 0.3 and 1.7% in early 1990s [10] and 0.1 to 1% in 2011. [11]
Flax meal. Flax meal, or ground flaxseeds, mixed with water creates what is popularly known as a "flax egg." The seeds absorb the water and form a gel-like substance.
Cyclohexane-1,2,3,4,5,6-hexol is a family of chemical compounds with formula C 6 H 12 O 6, whose molecule consists of a ring of six carbon atoms, each bound to one hydrogen atom and one hydroxyl group (–OH). There are nine stereoisomers, that differ by the position of the hydroxyl groups relative to the mean plane of the ring.