ABSTRACT
Petrolatum is a purified material consisting of a complex combination of hydrocarbons with an ointment-like consistency and is derived from petroleum (crude oil). Based on its origin, it would seem that the properties of petrolatum would vary dramatically depending on the type of crude oil used. However, since different types of crude oils have widely differing properties (depending on the source of the oil), only certain waxy crudes are suitable for the manufacture of petrolatum.
