DMSO-WATER azeotrope?

[Francisco Ignacio Franco Duro]

The "pure" DMSO liquid contains a certain proportion of water. The
heating at 50 ºC of this liquid in a closed capsule formes an atmosphere
saturated of DMSO. Does this atmosphere contain water too?. Does DMSO
form a azeotrope with water? Is posible to know the proportion of water
is this phase?

Thanks in advance.

F. Franco
Departamento de Química Inorgánica, Cristalografía y Mineralogía
Facultad de Ciencias, Universidad de Málaga

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