Potassium dichromate (K₂Cr₂O₇), feem ntau hu ua potassium bichromate lossis liab vitriol potassium, yog txiv kab ntxwv-liab triclinic lossis acicular crystal. Nws muaj qhov melting point ntawm 398 degree thiab kub kub ntawm 500 degree (nrog decomposition). Nws yog soluble hauv dej, tsim cov tshuaj acidic uas yog corrosive, tshuaj lom, thiab muaj zog oxidizing.
Sodium dichromate (Na₂Cr₂O₇·2H₂O), feem ntau hu ua sodium bichromate lossis liab vitriol sodium, yog liab monoclinic prismatic lossis acicular crystal. Nws muaj ib tug melting point ntawm 320 degree thiab boiling point ntawm 600 degree (nrog decomposition). Thaum 100 degree, nws poob nws cov dej siv lead ua los tsim cov ntawv tsis muaj dej. Daim ntawv anhydrous muaj qhov melting point ntawm 356.7 degree thiab decomposes ntawm 400 degree kom tso pa oxygen. Nws yog hygroscopic heev thiab yooj yim soluble nyob rau hauv dej, tsim ib tug corrosive thiab tshuaj lom acidic kua uas muaj zog oxidizing.
