alkalis

Polyvinyl Alcohol

Products Polyvinyl alcohol is used as an excipient in many drugs, especially in film-coated tablets. Structure and properties Polyvinyl alcohol exists as a yellowish white and odorless powder or as translucent granules and is soluble in water. Different types are distinguished. The substance is obtained by polymerization of vinyl acetate followed by partial or almost … Polyvinyl Alcohol

Bases

Products Bases are available as pure substances in pharmacies and drugstores. They are included in numerous medicines as active ingredients and excipients. Definition Bases (B) are proton acceptors. They accept a proton from an acid (HA), a proton donor, in the acid-base reaction. Thus, they lead to deprotonation: HA + B ⇄ HB + + … Bases