Urea |57-13-6
IiNkcazo zeeMveliso
Ingcaciso yeMveliso: I-Urea, ekwabizwa ngokuba yi-carbamide, inefomula yeekhemikhali i-CH4N2O.Yikhompawundi ephilayo eyenziwe yikhabhoni, initrogen, ioksijini kunye nehydrogen.Yikristale emhlophe.
I-Urea sisichumiso senitrogen esixutywa kakhulu, isichumisi esingathathi hlangothi esisebenza ngokukhawuleza, kwaye sinokusetyenziswa ukuvelisa iintlobo ezahlukeneyo zezichumisi ezihlanganisiweyo.I-Urea ifanelekile kwisichumiso esisisiseko kunye nesinxibo esiphezulu, kwaye ngamanye amaxesha njengesichumisi sembewu.
Njengesichumisi esingathathi hlangothi, i-urea ifanelekile kwimihlaba eyahlukeneyo kunye nezityalo.Kulula ukuyigcina, kulula ukuyisebenzisa, kwaye inomonakalo omncinci emhlabeni.Yikhemikhali ye-nitrogen fertilizer esetyenziswa ngoku kwisixa esikhulu.Kumashishini, i-ammonia kunye ne-carbon dioxide zisetyenziselwa ukudibanisa urea phantsi kweemeko ezithile.
Isicelo: Ezolimo njengesichumiso
Umqulu:25 kgs/ibhegi okanye njengoko ucela.
Ugcino:Imveliso kufuneka igcinwe kwindawo enomthunzi kunye nepholile.Musa ukuyivumela ukuba ibekwe elangeni.Ukusebenza akuyi kuchaphazeleka ngokufuma.
Imigangatho ephunyeziweyo:Umgangatho wamazwe ngamazwe.
Inkcazo yeMveliso:
| Izinto zovavanyo | Isalathiso soMgangatho wezoLimo | ||
| Udidi oluphezulu | Ufanelekile | ||
| Umbala | Mhlophe | Mhlophe | |
| Iyonke iNitrojeni(Kwisiseko esomileyo）≥ | 46.0 | 45.0 | |
| I-Biuret %≤ | 0.9 | 1.5 | |
| Amanzi(H2O）% ≤ | 0.5 | 1.0 | |
| I-methylene diurea(kwisiseko se-HCHO）% ≤ | 0.6 | 0.6 | |
| Ubungakanani besuntswana | d0.85mm-2.80mm ≥ d1.18mm-3.35mm ≥ d2.00mm-4.75mm ≥ d4.00mm-8.00mm ≥ | 93 | 90 |
| Umgangatho wokuphunyezwa kwemveliso yi-GB/T2440-2017 | |||
