Petrolatum (Vaseline) is the malthenes purified from lubrication oil, the mixture of residue oil and cerate.It is White or yellow homogeneous paste, almost odorless and tasteless, a mixture of liquid and solid paraffin hydrocarbons.
Petroleum jelly, petrolatum, white petrolatum, soft paraffin, or multi-hydrocarbon, is a semi-solid mixture of hydrocarbons (with carbon numbers mainly higher than 25),originally promoted as a topical ointment for its healing properties.