Abubuwan da ke cikin borax anhydrous sune lu'ulu'u masu launin fari ko lu'ulu'u marasa launi, wurin narkewa na α orthorhombic crystal shine 742.5 ° C, kuma yawancin shine 2.28;Yana da ƙarfi hygroscopicity, narke cikin ruwa, glycerin, kuma sannu a hankali narke a cikin methanol don samar da wani bayani tare da maida hankali na 13-16%.Maganin sa mai ruwa da tsaki shine raunin alkaline da rashin narkewa a cikin barasa.Anhydrous Borax samfur ne mai anhydrous da ake samu lokacin da ake zafi da borax zuwa 350-400°C.Lokacin da aka sanya shi cikin iska, zai iya ɗaukar danshi cikin borax decahydrate ko borax pentahydrate.