... or insoluble PVP. It appears as white or light yellow, free flowing hygroscopic powder, odorless or with faint characteristic ... molecular weight. *PVPP XL-10 TEST ITEMSSPECIFICATIONSAppearanceHygroscopic, white or yellowish-white powder or flakes,.SolubilityPractically insoluble in water, in ... the mouth, diminish inflammation. cross povidone powder clarifying agent for beverage supplier muanfacturer