Tye yore ario madongo mi yubu sodium sulfide. Yore pa Glauber's salt uketho i iye rubu sodium sulfate ku coal powder i 1:0.5 ratio man lyero gi i reverberatory furnace nitundo 950°C, ku jwigo gi kare ku kare mi juku clumming. Piny ma wok kud i hydrogen sulfide umaku juwodhe ku tic ku alkaline solution, man ka jutimo ngo ikum cik mi gwoko gas ma wok kud i yamo, jucopo culo cul kud ibang judongo mi gwoko kwo pa piny. Yore mi by-product tiyo ku pii ma ukadhu kud i barium salt, ma mitu timo filtration abic. Kadok eni dwoko piny wel piny ku 30%, leng pa piny copo tundo 90% kende.

Sodium sulfide yero piny maber man egwoko tic ku diro ma malu, ku leng man piny ma rac manok, ma ketho piny bedo maber kadi pi lwongo madongo. Dii kaneni mi nwangu sodium sulfide maber man ma tiyo maber.