Polyvinyl Alcohol

**Definition:** A polymer prepared from polyvinyl acetates by replacement of the acetate groups with hydroxyl groups. It is used as a pharmaceutic aid and ophthalmic lubricant as well as in the manufacture of surface coatings artificial sponges, cosmetics, and other products.

**Tree numbers:** - D02.033.750 - D02.455.326.271.884.533.532 - D05.750.716.721.616 - D25.720.716.721.616 - J01.637.051.720.716.721.616