Muraayada caadiga ah waxaa laga sameeyaa ciid quartz, soodhada iyo limestone, iyada oo loo marayo dhalaalid wadajir ah.Waa nooc ka mid ah isku dhafka silicate ee samaynta dareeraha.Bilowga, sheyga muraayadda ayaa midab leh qaybo yaryar oo leh hufnaan liidata.Midabka laguma daro shuqullo macmal ah, xaqiiqadu waxay tahay in alaabta ceeriin aysan saafi ahayn, oo lagu qaso wasakh.Waqtigaas, alaabada muraayadaha midabka leh ayaa loo isticmaalaa qurxinta, aad ayey uga duwan yihiin hadda.
Daraasad ka dib, dadku waxay ogaadeen in haddii lagu daro 0.4% ~ 0.7% midabaynta alaabta ceeriin, muraayaddu waxay yeelan doontaa midab.Inta badan midabku waa oxide bir ah, maadaama walxo kasta oo macdan ah ay leeyihiin astaamo u gaar ah, ka dibna oxide macdan ah oo kala duwan ayaa muujinaya midabyo kala duwan muraayadda.Tusaale ahaan, galaas leh Cr2O3 ayaa muujin doona midab cagaaran, iyadoo MnO2 ay muujin doonto midab buluug ah, iyadoo Co2O3 ay muujin doonto midab buluug ah.
Dhab ahaantii, midabka galaasku kuma salaysna midabka.Iyada oo la hagaajinayo heerkulka dhalaalidda, si loo beddelo valence of element, ka dibna waxay samayn kartaa muraayad midab kala duwan leh.Tusaale ahaan Cuprum-ka galaaska, haddii uu jiray oksaydhka copper valence sare ee galaaska, waa midab cagaaran oo buluug ah, laakiin haddii uu jiro valence hoose Cu2O, waxay muujin doontaa midab casaan ah.
Hadda, dadku waxay u adeegsadaan curiyaha dhulka naadir oxidate sida midabaynta si ay u soo saaraan muraayad midab leh oo kala duwan.Muraayadda leh curiyaha dhulka naadir-ku wuxuu muujinayaa midab dhalaalaya iyo dhalaal, xitaa midab beddela iftiinka qorraxda ee kala duwan.Isticmaalka muraayadda noocaan ah si loo sameeyo daaqadaha iyo albaabada, gudaha gudaha wuxuu ilaalin karaa iftiinka, looma baahna in la isticmaalo daah si looga fogaado iftiinka qorraxda, ka dibna dadku waxay ugu yeereen daah toos ah.
Waqtiga boostada: Febraayo-18-2022