Urea N46

UREA

ua n46:.

-Nws yog xim tsis muaj kob crystalline lossis crystalline hmoov, soluble hauv dej thiab cawv, insoluble hauv ether.

Txoj kev tsim khoom:

-Kev npaj ntawm urea-15N2 feem ntau yog siv txoj kev diazotization urea. Reacting urea zoo tib yam nrog tus neeg sawv cev diazotizing uas muaj nitrogen isotope 15N los tsim urea -15N2.

urea n46 Lub hom phiaj:

-Mainly siv rau nitrogen isotope labeling thwmsim. Los ntawm muab cov kab lis kev cai nruab nrab uas muaj urea -15N2 rau cov nroj tsuag lossis tsiaj txhu, cov txheej txheem nitrogen metabolism ntawm cov nroj tsuag lossis tsiaj tuaj yeem kawm.

Txoj kev tshawb nrhiav:

Nyob rau hauv 1828, German chemist Friedrich Weiler thawj synthesized urea siv cov inorganic tshuaj ammonium cyanate (NH4CNO, ib tug inorganic compound uas tau los ntawm reacting ammonium chloride thiab silver cyanate) nrog ammonium sulfate. Thawj zaug nws tau npaj los tsim cov ammonium cyanate, tab sis xaus nrog urea. Lub synthesis ntawm urea cim qhov pib ntawm cov khoom siv dag zog ntawm cov organic tebchaw.

urea n46 muaj kev nyab xeeb siab, tab sis tseem yuav tsum tau them nyiaj mloog zoo rau kev tiv thaiv kev nqus pa, tiv thaiv daim tawv nqaij, thiab noj. Yog tias nyob rau ntawm daim tawv nqaij lossis qhov muag, yaug tam sim nrog dej ntau. Kev tiv thaiv tsim nyog yuav tsum tau ua thaum lub sijhawm tsim khoom thiab siv los xyuas kom muaj kev nyab xeeb.

Ua tsaug rau koj tuaj xyuas thiab txais tos koj cov lus nug zoo!

Cim npe nrov: Tuam Tshoj urea n46 manufacturers, lwm tus neeg, Hoobkas