Makhalidwe a anhydrous borax ndi makhiristo oyera kapena magalasi opanda mtundu, malo osungunuka a α orthorhombic crystal ndi 742.5 ° C, ndipo kachulukidwe ndi 2.28;Ili ndi hygroscopicity yamphamvu, imasungunuka m'madzi, glycerin, ndipo imasungunuka pang'onopang'ono mu methanol kupanga yankho ndi ndende ya 13-16%.Njira yake yamadzimadzi imakhala yochepa kwambiri ya alkaline komanso yosasungunuka mu mowa.Anhydrous borax ndi mankhwala opanda madzi omwe amapezeka pamene borax yatenthedwa kufika 350-400 ° C.Ikayikidwa mumlengalenga, imatha kuyamwa chinyezi mu borax decahydrate kapena borax pentahydrate.