Igikombe cya sulfate ni umunyu wakozwe no kuvura oxyde ya cupric hamwe na acide sulfurike.Iyi miterere nini ya kirisiti yubururu irimo molekile eshanu zamazi (CuSO4 ∙ 5H2O) kandi izwi kandi nka vitriol yubururu.Umunyu wa anhydrous ukorwa no gushyushya hydrate kugeza kuri 150 ° C (300 ° F).