Dawb hmoov crystals, lub ntiajteb txawj nqus 1.532 (17 ° C) yooj yim nqus dej noo, thiab tsim lub ncuav mog qab zib, soluble hauv dej, thiab solubility sib txawv raws li qhov kub thiab txias, sublimes ntawm 340 ° C. Nws zoo nkaus li me ntsis corrosivity.
Cov khoom yog compressed rau hauv daim ntawv granular.