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: Adding [[salt]] to [[ice]] can lower its '''melting point''', causing it to [[melting|melt]] at a lower [[temperature]].
: [[Transition Metal]]s generally have very high '''melting points''', except for [[Mercury (Element)|Mercury]] which is [[liquid]] at [[Room Temperature|room temperature]].
===Detecting Purity===
: The [[Pure|purity]] of a sample can be determined by [[observing]] its [[Melting Point|melting point]]. If the [[Melting Point|melting point]] is spread over a range of [[temperature]]s or different from the known values for the [[pure]] [[substance]] then the sample is not [[pure]]. For example to test if a sample of [[Water]] is [[pure]] it can be [[melting|melted]] from [[Ice]] which should happen at exactly 0°C if it does not then it is not [[pure]].