Tsarin sinadaran: CuSO4 5H2O Nauyin kwayoyin halitta: 249.68 CAS: 7758-99-8
Na kowa nau'i na jan karfe sulfate shi ne crystal, jan karfe sulfate monohydrate tetrahydrate ([Cu(H2O)4]SO4·H2O, jan karfe sulfate pentahydrate), wanda yake shi ne blue m.Maganin sa mai ruwa ya bayyana shuɗi saboda hydrated jan ƙarfe ions, don haka anhydrous jan karfe sulfate sau da yawa amfani don gwada kasancewar ruwa a cikin dakin gwaje-gwaje.A hakikanin samarwa da rayuwa, ana amfani da sulfate na jan karfe sau da yawa don tace tagulla mai ladabi, kuma ana iya haɗe shi da lemun tsami don yin cakuda Bordeaux, magungunan kashe qwari.