Urea los ntawm cov zis
Lwm lub npe: carbamide
Mf: ch4n2o
Einecs: 200-315-5
Qhov chaw ntawm keeb kwm: Suav
Purity: ntau dua los yog sib npaug rau 46%
Urea
Urea los ntawm cov zis, co (HN2) 2, tseem hu ua carbamide, yog ib qho tseem ceeb nitrogen fertilizer nrog cov khoom lag luam zoo thiab muaj txiaj ntsig zoo. Sib nrug los ntawm nws qhov loj siv raws li cov chiv, urea kuj tseem ua haujlwm hauv kev tsim cov xim muaj xim, thiab cov ntaub ntawv pub thiab cov khoom siv ntawm cov khoom noj protein nitrogen.
| Lub npe | Urea |
| Cas tsis muaj. | 57-13-6 |
| Tshuaj Cov Qauv | Co (NH2) 2 |
| Kev tshwm sim | Dawb Prilled Crystal |
| Molecular hnyav | 60.055 |
| Ceev | 1.32 g/m3 |
| Ntiag tug | Nws yog soluble hauv dej thiab cawv. Nws cov dej solubility yog fainfly alkaline. Nws decomposes thaum rhuab hla kev fus point. Nyob rau hauv cov kub siab, nws tuaj yeem nkag mus rau cov kev cuam tshuam hws thiab tsim cov biuret, triuret thiab polyhyrocyanic acid. |
|
Yam |
Kev qhia tshwj xeeb |
|
T-nitrogen |
Ntau dua los yog sib npaug rau 46. 0 |
|
dej |
Tsawg dua los yog sib npaug rau 0. 7 |
|
Biuret (Pawg Mass Feem) |
Tsawg dua los yog sib npaug rau 1. 0 |
|
teeb meem insoluble |
Tsawg dua los yog sib npaug rau 0. 0004 |
Lub hom phiaj ntawm urea los ntawm cov zis:
1 urea yog qhov muaj dej noo zoo heev. Nws pom nyob rau hauv cov stratum ntawm daim tawv nqaij thiab yog qhov tseem ceeb ntawm daim tawv nqaij ntuj noo noo ua rau NMF. Rau daim tawv nqaij, urea muaj moisturizing thiab mos keratin, yog li nws tuaj yeem tiv thaiv cov stratum Corneum los ntawm kev thaiv cov qhov hws, yog li txhim kho cov teeb meem ntawm pob txuv. Nws yog siv los ntxiv moisturizing cov khoom xyaw rau lub ntsej muag, saib xyuas tawv nqaij, cream, tes cream thiab lwm yam khoom. Qhov sib ntxiv piv yog 3-5%.
2. Muaj cov ntawv thov: Nws muaj cov txiaj ntsig zoo ntawm cov hlau thiab cov hlau corrosion ntawm cov hlau uas muaj kuab, thiab tseem yog kev npaj rau palladium activation ua kua.
3. Urea yog qhov siab siab ntawm nitrogen chiv, yog nruab nrab orge fertilizer, tseem siv tau hauv ntau qhov ntau ntawm cov chiv.
Ua tsaug rau koj cov kev mus ntsib thiab tos txais koj cov lus nug zoo!
Cim npe nrov: urea los ntawm cov zis, Suav teb urea los ntawm cov zis tsim qauv, chaw muag khoom, Hoobkas
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