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 waxy solid. It is determined by casting a 10 mm column of the solid in a glass tube with an internal diamter of about 1 mm and about 80 mm long, 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 has molten.[1]
This is a popular method for fats and waxes, because they tend to be mixtures of compounds with a range of molecular masses, without well-defined melting points.[2]
[edit] References
- ^ European Pharmacopoeia method 2.2.14
- ^ America Palm Oil Council glossary
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