Kuj tseem hu ua morphin, nws yog cov kua tsis muaj xim oily ntawm chav tsev kub. Melting point -4.76 ℃, kub taw tes 128.3 ℃. Qhov ceev 1.0005g / cm3 (20 ℃). Refractive index 1.4548. Flash point 38 ℃ (qhib khob). Miscible nrog dej, acetone, benzene, ether, cawv, ethylene glycol, linseed roj, turpentine roj, castor roj. Nws muaj hygroscopic thiab ammonia tsw.