Urea mai rufewa
 Urea mai rufewa |
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Rufewar taki na urea rukuni ne na sarrafawar taki wanda ya kunshi kayan kwalliya na urea da aka rufe a cikin sunadarai marasa narkewa kamar sulfur, polymers, wasu samfuran ko haɗuwa. Wadannan taki suna rage wasu daga cikin mummunan bangarorin taki na urea, kamar ƙone taki. Rufin yana fitar da urea ko dai lokacin da ruwa ya shiga, kamar yadda yake tare da sulfur, ko kuma lokacin da ya lalace, kamar yadda ya kasance tare da polymers.
Bayani na gaba ɗaya
[gyara sashe | gyara masomin]Ana amfani da Urea sosai a matsayin taki na nitrogen. Babban solubility a cikin ruwa ya sa ya zama da amfani ga aikace-aikacen ruwa, kuma yana da ƙananan haɗarin haifar da ƙone taki fiye da sauran sunadarai kamar calcium cyanide ko ammonium nitrate. Koyaya, haɗarin ƙone taki tare da urea na iya zama mai girma a wasu yanayi, kamar yanayin zafi mafi girma. Babban narkewar ruwa na urea na iya zama mara amfani a wasu lokuta.
Ɗaya daga cikin takamaiman dabarun don rage waɗannan rashin amfani shine a haɗa kayan aikin urea tare da sunadarai marasa narkewa. Wadannan sutura suna ba da izinin sakin urea a hankali a cikin hanyar sarrafawa, yana ba da izini ga aikace-aikace marasa yawa.