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English: Melting of a substance exhibiting solid solution, with a bulk composition of C B. As the temperature rises, the solid follows the blue path, and begins melting at temperature T A. The initial liquid produced has the composition C L, and its composition follows the red path. At temperature T B the whole solid has melted.
Another type of binary phase diagram is a boiling-point diagram for a mixture of two components, i. e. chemical compounds. For two particular volatile components at a certain pressure such as atmospheric pressure , a boiling-point diagram shows what vapor (gas) compositions are in equilibrium with given liquid compositions depending on temperature.
English: Solid - liquid phase diagram of ethanol water mixtures (melting points, freezing points) Deutsch: Fest - flüssig - Phasendiagramm von Ethanol/Wasser-Gemischen Français : Diagramme de phase solide - liquide de mélanges eau/éthanol (points de fusion, points de solidification)
Printable version; In other projects ... melting point 302.9146 K (29.7646 °C) fixed point on ITS-90: ... The bcc phase and the P-T and VT phase diagrams below 2 K".
English: A modification of File:Phase-diag.svg with an adjusted water solid-liquid coexistence: A typical phase diagram for a single-component material, exhibiting solid, liquid and gaseous phases. The solid green line shows the usual shape of the liquid-solid phase line. The dotted green line shows the anomalous behavior of water.
The hatched regions indicate conditions under which one phase is metastable, so that two phases can coexist. The source reference says that the phase diagram is well established only up to around 100 GPa. More recent work shows that the melting point does not go as high as 10,000 K. Accurate illustration but not a pixel-exact plot.
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.
The composition range within which the primary phase remains constant is known as primary crystalline phase field. The liquidus temperature is important in the glass industry because crystallization can cause severe problems during the glass melting and forming processes, and it also may lead to product failure. [12]