Har ila yau, an san shi da morphin, ruwa ne mai kauri mara launi a zafin jiki. Matsayin narkewa -4.76 ℃, wurin tafasa 128.3 ℃. Yawaita 1.0005g/cm3(20℃). Ƙididdigar Refractive 1.4548. Flash point 38 ℃ (bude kofin). Miscible da ruwa, acetone, benzene, ether, barasa, ethylene glycol, linseed man fetur, turpentine mai, Castor man. Yana da hygroscopic da ammonia warin.