What is Melting point?
{{no sources|date=January 2025}} The '''melting point''' of a [[substance]] is the [[temperature]] at which this substance goes from the [[solid]] state to the [[liquid]] one, at a [[Standard temperature and pressure|normal pressure]]. For water, this is 0° [[Celsius]] (32° [[Fahrenheit]], 273.15 [[Kelvin]]). The [[chemical element]] with the highest melting point is [[tungsten]]. Some [[chemical compound]]s have a higher melting point. When looking at when a liquid substance becomes solid, most people call this the '''freezing point'''. For most substances, like [[water]], this is the same as the melting point. There are substances, where this is not the case (they melt at one temperature, and freeze at another). [[Agar]] seems to melt at 85° Celsius, but freeze at between 35°C and 40°C. This [[phenomenon]] is a kind of [[hysteresis]]. Adding certain substances or impurities will change the melting point of the resulting mixture. For example, [[sugar]] or [[salt]] will lower the melting point, and [[alcohol]] will raise it. {{chem-stub}} {{States of matter}} [[Category:Thermodynamics]] [[Category:Chemistry]]