Onye ógba òkú
Ọrụ nke onye na-agba ọkụ (German) maọbụ onye na-eme ọkụ potash (Pottaschbrenner) bụ ịgba osisi ọkụ maka ebumnuche ụlọ ọrụ. Site na ntụ, potash dị mkpa ije mee ihe dyeing, na ncha ya na glassmaking nwere ike ime site na leaching na isi (ya mere okwu ahụ bụ "potash boiler" maọbụ Pottaschsieder).

N'akụkọ ihe mere eme, a na-ejikwa potash dịka fetịlaịza, n'imepụta ntụ na n'ụlọ dịka ihe nhicha, bleach na ihe enyemaka ime achịcha.

Ka oké ọhịa na-ebelatawanye na mgbe, na narị afọ nke iri na abụọ, a machibidoro maọbụ machibido igbu osisi ọkụ, ndị na-ere ọkụ na-anakọta osisi nwụrụ anwụ site n'oké ọhịa yana ntụ ọkụ site n'ụlọ.

Ka ọ na-erule Na ngwụcha narị afọ nke iri na iteghete, ọrụ nke Onye na agba  ọkụ na-ebelata na mkpa na-arịwanye elu nke coal na ụzọ njem ka mma site na ụzọ ụgbọ okporo ígwè. Potash dịka ihe mmepụta ihe eji emepụta ihe ejiri potassium mineral nweta site na igwu ala were dochie ya.

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