Urea 丨 cas 57-13-6

Urea {{57-13-6, tseem hu ua carbamide, yog ib pawg organic yooj yim ua los ntawm ob pawg amino (-nh₂) txuas nrog pawg carbonyL (c {2}}. Nws yog ib qho tsis muaj kob, tsis muaj ntxhiab, thiab cov khoom siv heev, feem ntau pom hauv cov zis raws li cov khoom lag luam nitrogenous loj. Urea 57-13-6 yog qhov tseem ceeb hauv nitrogen voj voog, raws li nws plays ib qho tseem ceeb ntawm cov tsiaj txhu ntawm cov tsiaj.

Urea tsis tsuas yog pom ib txwm muaj kev lom zem tab sis kuj tseem yog dav tsim synthetically. Cov khoom siv hluavtaws ntawm ureea pib thaum ntxov xyoo pua 20th thiab nws muaj txij li los ua ib qho ntawm cov tsim tawm cov organic loj tshaj plaws. Nws muaj ntau cov kev siv hauv kev lag luam ntau yam, los ntawm kev ua liaj ua teb rau tshuaj thiab cov tshuaj pleev ib ce.

1. Ua liaj / teb thiab chiv chiv
Urea feem ntau paub txog nws siv raws li cov chiv hauv kev ua liaj ua teb. Nws yog ib qho ntawm feem ntau siv nitrogen-based fertilizers vim nws cov ntsiab lus nitrogen thiab tus nqi-ua hauj lwm zoo. Cov nitrogen hauv urea yog qhov tseem ceeb rau cog kev loj hlob vim nws yog qhov tseem ceeb ntawm cov amino acids thiab cov protein.
● Nitrogen fertilizer: urea muaj kwv yees li ntawm 46% nitrogen, ua rau nws ib qho ntawm cov chiv ntawm cov chiv muaj. Nitrogen yog cov khoom noj khoom haus tseem ceeb rau cov nroj tsuag, txhawb nqa kev noj qab haus huv hauv paus thiab cov nplooj av loj hlob, thiab txhim kho cov photosynthesis.
Revic-tso tawm qeeb: urea tuaj yeem kho kom tau cov chiv qeeb qeeb, uas pab muab cov nitrogen nyob rau lub sijhawm, txo qhov kev xav tau ntawm cov ntawv thov nquag thiab ua kom muaj kev cuam tshuam ib puag ncig.
2. Muaj cov ntawv thov
Urea {{57-13-6} yog qhov dav dav hauv ntau cov txheej txheem muaj cov tshuaj lom neeg. Nws yog ib qho khoom siv tseem ceeb hauv kev tsim cov plastics, resins, thiab cov nplaum.
● Kev tsim tawm hauv urethane: urea siv nyob rau hauv synthesis ntawm urethes, uas tau siv hauv kev tsim cov ua npuas dej, xim av, varnishes, thiab cov nplaum. Qhov yooj thiab ruaj khov ntawm urethane ua rau nws tseem ceeb hauv kev tsim kho, kev tsim kho, thiab ntim khoom ntim khoom.
● Ntau lawm me me me me tseem koom nrog hauv kev tsim cov melamine, ib qho sib xyaw ua ke siv hauv laminates, uas siv hauv laminates, uas yog siv hauv cov khoom laminates, chav ua noj, thiab lwm yam khoom siv ceev.
Cov nplaum thiab cov tshuaj pleev xim: urea-forma formathyde resins, tau siv dav hauv cov nplaum thiab cov txheej txheem kev tsim kho, thiab kev lag luam twj.
3. Tshuaj Kho Mob thiab Kev Siv Kho Mob
Urea muaj ob peb siv nyob rau hauv cov tshuaj thiab chaw muag tshuaj vim nws cov moisturizing thiab solubilizing zog. Nws yog feem ntau pom nyob rau hauv cov tshuaj pleev, tshwj xeeb tshaj yog rau cov tawv nqaij thiab kev mob nkeeg.
● Topical Treatments: Urea is used in topical creams and ointments for the treatment of dry skin conditions such as eczema, psoriasis, and dermatitis. Nws ua haujlwm los ntawm kev pab khaws cov dej noo hauv daim tawv nqaij, ua kom tawv nqaij thiab txhim kho nws txoj kev elasticity.
● Qhov txhab kev nkeeg, urea kuj tseem siv qee qhov kev hnav khaub ncaws uas nws tau tshem tawm cov tawv nqaij tuag) thiab ua kom cov nqaij mos, pab kom nrawm dua.
● Kev Kho Mob Kom Diassissis Kev Kho Mob: URAs ua lub luag haujlwm tseem ceeb hauv lub raum lim ntshav. Thaum lub sij hawm hemodialysis, urea, uas acceyea, uas accumulates nyob rau hauv cov neeg mob raum tsis ua hauj lwm, raug tshem tawm los ntawm cov ntshav los ntawm kev lim ntshav kom tiv thaiv kev lom zem.
4. Cov tshuaj pleev ib ce thiab tu tawv nqaij
Urea yog ib qho kev sib xyaw ua ke hauv ntau cov khoom kom zoo nkauj thiab cov khoom tu tus kheej vim nws cov khoom nyiam kev nyiam. Nws yog siv rau moisturizing cov tawv nqaij, txo qis roughness, thiab txhawb cov tawv nqaij tag nrho ntawm kev noj qab haus huv.
Anticurizers thiab cov tshuaj pleev: urea feem ntau siv nyob rau hauv cov dej noo thiab muaj cov tawv nqaij los pab cov tawv nqaij ua kom tawv nqaij, khaws noo noo, thiab txhim kho cov tawv nqaij ua kom zoo nkauj. Nws pab txhim kho cov tawv nqaij lub neej muaj sia.
● Exfoliating khoom: urea muaj keratolytic (exfoliating) cov khoom, uas txhais tau tias nws tuaj yeem pab tshem tawm cov tawv nqaij tuag thiab txhawb cov tawv nqaij smoother. Nws yog feem ntau pom nyob rau hauv cov khoom rau ntxhib, qhuav, lossis tawg tawv nqaij.
● Los tiv thaiv kev laus: urea muaj peev xwm khaws cov dej noo thiab txhim kho cov khoom siv tseem ceeb hauv kev tiv thaiv cov khoom uas tseem ceeb hauv kab thiab pob.
5. Tshuaj Synthesis
Urea yog siv nyob rau hauv kev tsim cov tshuaj thiab cov khoom siv ntau yam vim nws cov tshuaj lom neeg ntau ntau yam.
● Isocyanates: urea 丨 57-13-6}} yog siv rau hauv kev tsim cov khoom siv txhav, cov xim av, thiab pleev xim.
● Amoos nitrate: urea kuj tseem siv rau hauv kev tsim khoom ntawm ammonium nitrate, cov khoom siv tseem ceeb hauv chiv thiab cov khoom tawg.
6. Tsiaj pub
Hauv cov tsiaj txhu kev tsim tsiaj, urea yog siv los ua ib qho ntxiv rau hauv cov tsiaj pub rau ruminant ntxiv rau cov amino acids hauv lawv lub plab zom mov.
● Nitrogen Source: urea yog siv nyob rau hauv ruminant pub rau ntxiv lawv cov nitrogen nkag tau. Cov kab mob me me hauv rumen ntawm rumen ntawm rumen ntawm ruminant tsiaj tawg urea thiab hloov nws mus rau cov protein, uas yog qhov tseem ceeb rau kev loj hlob thiab kev siv mis.

1. Cov chiv siv tau zoo heev
Raws li cov nitrogen-nplua nuj compound, 丨ea 57-13-6}}} qhov zoo ntawm nitrogen rau cov nroj tsuag thiab kev loj hlob. Cov ntsiab lus nitrogen siab (46%) kom ua kom muaj zog tau txais cov txhab nyiaj muaj zog muaj zog, txhawb nqa cov nplooj ntawv loj hlob, cov duab kos, thiab zuag qhia tag nrho tsob ntoo.
● Cov zaub mov noj muaj txiaj ntsig zoo: Cov nroj tsuag nitrogen ua rau muaj kev loj hlob sai thiab noj qab haus huv hauv kev ua liaj ua teb.
Preve-equirs-urea yog ib qho ntawm cov nqi chiv ntawm cov chiv keeb kwm muaj txiaj ntsig zoo tshaj plaws muaj, ua rau siv tau siv thoob ntiaj teb no hauv kev ua liaj ua teb thoob ntiaj teb.
2. Cov tawv nqaij hydration thiab kev saib xyuas
Nyob rau hauv cov tshuaj lag luam kws tshuaj thiab kho kom zoo nkauj, urea yaa moisturizing thiab exfoliating cov khoom ua rau nws muaj txiaj ntsig zoo hauv ntau yam khoom tu cov tawv nqaij. Los ntawm kev txhim kho cov hydration thiab txhawb nqa cov cell tig, urea pab tswj kom muaj kev noj qab nyob zoo, mos, thiab cov tawv nqaij hluas.
● Cov dej noo tau zoo: ua kom cov tawv nqaij ua kom qhuav, ua kom cov tawv nqaij dryness thiab tawg, ua rau cov neeg muaj tawv nqaij zoo li cov tawv nqaij zoo li cov tawv nqaij zoo li eczema thiab psoriasis.
● Cov nqaij daim tawv nqaij: Ua Keratolytic tus neeg sawv cev, urea pab tshem tawm cov tawv nqaij thiab ua kom zoo ntawm kev kho cov tawv nqaij.
3. Kev lag luam versatility
Urea cov tshuaj lom neeg ua rau nws muaj ntau yam ntxiv rau ntau cov ntawv thov, nrog rau kev tsim cov plastics, cov nplaum, thiab cov khoom tawg. Nws lub luag haujlwm hauv kev tsim urea-formaldehyde resins, siv nyob rau hauv kev tsim kho thiab rooj tog zaum, ua rau nws cov nqi hluav taws xob, ua kom muaj txiaj ntsig zoo.
4. Ib puag ncig muaj kev ywj pheej Chiv
Thaum nitrogen chiv feem ntau tuaj yeem pab txhawb kev ua qias tuaj ntawm leaching los ntawm kev tiv thaiv ib puag ncig ntawm nws cov kev cuam tshuam ib puag ncig thaum siv tau zoo. Cov compound tuaj yeem siv rau hauv kev tso tawm qeeb-, txo cov dej num nitrogen thiab kev txhim kho kev ua tau zoo.

Urea {57-13-6 Yog ib qho kev sib txuas lus thoob plaws thoob plaws ntau yam kev lag luam, suav nrog kev ua liaj ua teb, tshuaj, tshuaj pleev ib ce, thiab tshuaj lom neeg. Nws lub peev xwm los muab cov nitrogen tseem ceeb rau cog kev loj hlob, nws cov txiaj ntsig ntawm daim tawv nqaij kev noj qab haus huv, thiab nws lub luag haujlwm ntawm kev siv cov txheej txheem teeb meem tseem ceeb hauv zej zog niaj hnub. Urea tus nqi-ua tau zoo thiab kev ua tau zoo ua rau nws muaj feem tsis muaj txiaj ntsig hauv ntau cov khoom lag luam thiab cov txheej txheem, ua rau nws txoj kev ua haujlwm txuas ntxiv hauv ntau cov haujlwm.