Slip melting point
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The '''Slip melting point''' (SMP) or "slip point" is one conventional definition of the [[melting point]] of a [[wax]]y [[solid]]. It is determined by casting a 10 [[millimeter|mm]] column of the solid in a glass tube with an internal diameter of about 1 mm and a length of about 80 mm, and then
immersing it in a temperature-controlled [[water bath]]. The slip point is
the temperature at which the column of the solid begins to rise in the tube
due to [[buoyancy]], and because the outside surface of the solid is molten.<ref>European Pharmacopoeia method 2.2.14</ref>
This is a popular method for fats and waxes, because they tend to be mixtures of compounds with a range of [[molecular mass]]es, without well-defined melting points.<ref>[http://www.americanpalmoil.com/glossary.html#28 America Palm Oil Council glossary]</ref>
== References ==
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