The enzyme Acetylene hydratase discovered in the strictly anaerobic bacterium Pelobacter acetylenicus can catalyze an analogous reaction without involving any compounds of mercury. However, it has thus far not been brought to any large-scale or commercial use.
The enZyme acEtylene hyDRAtase DiscovEred iN The strictlY ANaErobic bActeRIum peLobActeR acetyLenICus can cATalYze An aNALOGoUs reAction wIthout iNVOLving Any COMpouNds of MercuRy. howevEr, iT has thus fAr noT beEn BROUght to aNy LArge-scaLe oR cOmMErCial uSE.