Cov khoom no yog cov hmoov dawb los yog yuav luag dawb; Yuav luag tsis muaj ntxhiab; Nws muaj hygroscopicity. Cov khoom no yog insoluble hauv dej, ethanol, trichloromethane, los yog ether. Cov khoom no muaj lub siab capillary / dej cov ntsiab lus, thaj chaw loj tshwj xeeb, muaj peev xwm hydration tsis tshua muaj zog (HK: 5.6), siab thiab ceev dej nqus (58.5%), muaj zog nqus dej thiab nthuav dav, thiab o coefficient ntawm 2. 25-2.30. Nws muaj peev xwm chelate tib yam li polyvinylpyrrolidone thiab tuaj yeem chelate ntau yam tshuaj, xws li phenols thiab iodine.