Tsev / Khoom / Lwm Cov Khoom Siv Tshuaj / Ntsiab lus

Siab Siab urea

CAS Tsis muaj: 57-13-6
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%

Xa kev nug

Urea

Cov khoom piav qhia ntawm cov siab purity urea:

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.

1. Kev tso tawm cov as-ham txhawb nqa, ruaj khov thiab ua tau raws li kev xav tau khoom noj muaj txiaj ntsig ntawm cov qoob loo, tawm los, zoo.

2. Cov xim tshwj xeeb, cov chiv nyob ze-nruab nrab, haum rau txhua hom av thiab qoob loo.

3. Cov as -ffur cov as-ham, cov khoom siv tshuaj tiv thaiv muaj txiaj ntsig tuaj yeem tswj tau.

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

Tuav thiab cia:

Khaws rau hauv lub tsev qhuav thiab cua hauv lub tsev nrog cov pob tawb ntim tau deb ntawm noo noo. Tiv thaiv cov khoom los ntawm cov nag thaum muaj cov ntaub ntawv los ua kom yaj thiab ploj thaum lub sijhawm thauj mus los.

Cov ntawv thov ntawm cov siab purity urea:

Ntau tshaj li 90% ntawm lub ntiaj teb ntau lawm area yog destined rau siv raws li nitrogen-tso chiv. Urea muaj cov ntsiab lus nitrogen ntau tshaj plaws ntawm txhua qhov khoom siv nitrogenous fertilizer hauv kev siv ntau. Nws tuaj yeem thov rau txhua hom av thiab tsob ntoo.

ch4n2o h2o