Tye yoo aryo ma pire tek me yubu gin ma ki lwongo ni sodium sulfide. Kit me Glauber's salt ni kwako rubu sodium sulfate ki coal powder i ratio me 1:0.5 ki lyeto gi i reverberatory furnace nio wa i 950°C, ki ngwec kare ki kare me gengo guro. Gin ma aa ki i kom yamo ma ki lwongo ni hydrogen sulfide omyera ki kwany kun ki tiyo ki gin ma ki lwongo ni alkaline solution, ki ka pi rwate ki rwom me tic ki yamo ma ki kwanyo ki i yamo ki twero kelo pwod ki bot lutela ma gwoko kwo pa dano. Yoo me tic ki gin ma ki lwongo ni by-product ni tiyo ki pii ma obale ki i yubu kadu ma ki lwongo ni barium salt, ma mito rwom me filtration abic. Kadi bed ni man dwoko wel cente piny ki 30%, leng ne twero oo 90% keken.

Sodium sulfide yero jami ma ki tiyo kwede maber ki gwoko yubu ne kun tiyo ki diro ma malo, ki ler ma lamal ki jami ma balo ne manok, ma miyo jami bedo maber kadi wa pi jami mapol. Dii kany me nongo gin ma ki lwongo ni sodium sulfide maber ki ma tiyo maber.