I-Urea

incazelo emfushane:

Kuyinhlanganisela ephilayo eyakhiwe i-carbon, i-nitrogen, umoya-mpilo ne-hydrogen, enye yezinhlanganisela ezilula ze-organic, futhi iwumkhiqizo wokugcina oqukethe i-nitrogen we-protein metabolism kanye nokubola kwezilwane ezincelisayo nezinye izinhlanzi, futhi i-urea ihlanganiswa yi-ammonia ne-carbon. dioxide embonini ngaphansi kwezimo ezithile.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Imininingwane Yomkhiqizo

Imininingwane enikeziwe

Izinhlayiya ezimhlophe(okuqukethwe ≥46%)

Izinhlayiya ezinemibala(okuqukethwe ≥46%)

I-acicular prism crystal(okuqukethwe ≥99%)

(Ububanzi bereferensi yesicelo 'ukusetshenziswa komkhiqizo')

① Ukwakheka, uhlamvu nokuqukethwe kwezakhi kuyafana, ukukhishwa kwezakhi kanye nemodi yokumuncwa kuyefana, futhi okuqukethwe kwamanzi, ubulukhuni, okuqukethwe kothuli kanye nokuthutha kanye nokumelana nesitoreji kwezinhlayiya kuhlukile.

② Izinga lokuqedwa, izinga lokukhululwa kwezakhi kanye nezinga likamanyolo wezinhlayiya kuhlukile, futhi izinga lokuqedwa kwezinhlayiya ezincane liyashesha futhi umphumela uyashesha;Ukuqedwa kwezinhlayiya ezinkulu kuhamba kancane futhi isikhathi sokuvundisa side.

③ Okuqukethwe kwe-urea biuret enkulu kuphansi kunezinhlayiya ezincane, ezisetshenziswa njengomanyolo oyisisekelo, noma izinhlayiya ezinkulu zisetshenziselwa ukukhiqizwa komanyolo ohlanganisiwe.Ukufaka i-topdressing, i-urea encane ye-granular isetshenziselwa ukufafaza kwamaqabunga, ukufaka imbobo, ukufaka umsele kanye nokuvundiswa kwe-strip, kanye nokuxutshwa kwamanzi.

④ I-urea enezinhlayiyana ezinkulu inothuli oluphansi uma iqhathaniswa nezinhlayiyana ezincane ze-urea, amandla acindezelayo aphezulu, uketshezi oluhle, ingathuthwa ngobuningi, akulula ukuphuka nokuphekwa, futhi ifanele ukuvundiswa ngomshini.

I-EVERBRIGHT® 'izophinda ihlinzeke ngendlela oyifisayo :okuqukethwe/ubumhlophe/usayizi wezinhlayiya/PHvalue/umbala/isitayela sokupakisha/ ukucaciswa kwephakheji neminye imikhiqizo eqondene nezimo zakho zokusebenzisa, futhi ikunikeze amasampula amahhala.

Ipharamitha Yomkhiqizo

I-CAS Rn

57-13-6

I-EINECS Rn

200-315-5

FORMULA wt

60.06

ISIKHATHI

Izinhlanganisela eziphilayo

UKUDINA

1.335 g/cm³

I-H20 SOLUBILITY

encibilika emanzini

UKUBILISA

196.6°C

UKUQHUBEKA

132.7 ℃

Ukusetshenziswa komkhiqizo

Ukulawula ukuvundisa

[Ukulungiswa kwenani lembali]Ukuze unqobe unyaka omkhulu noma omncane wensimu yama-apula, fafaza isixazululo samanzi esingu-0.5% se-urea endaweni yamaqabunga emasontweni angama-5-6 ngemuva kokuqhakaza (isikhathi esibucayi sokuhlukaniswa kwezimbali ze-apula, ukukhula kwamahlumela amasha kuhamba kancane noma kuyama. , futhi okuqukethwe kwe-nitrogen emaqabunga kubonisa ukuthambekela kokwehla), ukufafaza kabili ngokulandelana, kungakhuphula okuqukethwe kwe-nitrogen emaqabunga, kusheshise ukukhula kwamahlumela amasha, kuvimbele ukuhlukana kwezimbali, futhi kwenze inani lembali lonyaka omkhulu lifanele.

[Flower and fruit thinning]Izitho zembali yamapentshisi zizwela kakhulu ku-urea, kodwa ukusabela kuhamba kancane, ngakho-ke i-peach yangaphandle nge-urea test, imiphumela ibonisa ukuthi i-peach ne-nectarine flower nezithelo zokunciphisa izithelo, zidinga ukuhlushwa okukhulu (7.4%) ukukhombisa imiphumela emihle, efaneleka kakhulu. ukugxila ku-8% -12%, amasonto angu-1-2 emva kokufafaza, ukufeza inhloso yokunciphisa imbali nezithelo.

[Ukukhiqizwa kwembewu yelayisi]Kubuchwepheshe bokukhiqiza imbewu yerayisi eyi-hybrid, ukuze kuthuthukiswe izinga labazali, ukuze kwandiswe inani lokukhiqizwa kwembewu yerayisi eliyingxube noma inani lokuzala lemigqa oyinyumba, ukuhlolwa kwenziwa nge-urea esikhundleni se-gibberellin, kanye nokusetshenziswa. ka-1.5% kuya ku-2% we-urea esigabeni esiphezulu sokukhulelwa kanye nesigaba sendlebe sokuqala (ukukhethwa kwezindlebe ezingu-20%), umphumela wokuzala wawufana ne-gibberellin, futhi ayizange ikhulise ukuphakama kwesitshalo.

[Ukulawula izinambuzane]With urea, ukuwasha powder, amanzi 4:1:400, ngemva ukuxuba, kungavimbela izihlahla zezithelo, imifino, ukotini aphid, izicabucabu abomvu, izinambuzane iklabishi nezinye izinambuzane, umphumela insecticidal ezingaphezu kuka-90%.[Umanyolo wensimbi we-Urea] I-Urea yakha insimbi e-chelated ene-Fe2+ ngendlela eyinkimbinkimbi.Lolu hlobo lukamanyolo we-iron ophilayo lunezindleko eziphansi kanye nomphumela omuhle ekuvimbeleni ukuntuleka kwensimbi nokulahlekelwa okuluhlaza.Umphumela wokulawula we-chlorosis ungcono kunalowo we-0.3% ye-ferrous sulfate.

Ukuphrinta kwendwangu nokudaya

① Ingasetshenziswa njengenani elikhulu le-melamine, i-urea-formaldehyde resin, i-hydrazine hydrate, i-tetracycline, i-phenobarbital, i-caffeine, i-VAT ensundu BR, i-phthalocyanine B, i-phthalocyanine Bx, i-monosodium glutamate neminye imikhiqizo yokukhiqiza izinto zokusetshenziswa.

② Inomthelela okhanyayo ekupholiseni amakhemikhali ensimbi nensimbi engagqwali, futhi isetshenziswa njenge-corrosion inhibitor ekuqoqweni kwensimbi, futhi isetshenziselwa ukulungisa uketshezi lwe-palladium.

③ Embonini, iphinde isetshenziswe njengento eluhlaza ekwenzeni ama-urea-formaldehyde resins, polyurethanes kanye ne-melamine-formaldehyde resins.

④I-ejenti yokunciphisa ekhethiwe yokukhishwa kwegesi ekhishwayo evuthayo, kanye ne-automotive urea, eyakhiwe ngo-32.5% we-high-purity urea kanye no-67.5% wamanzi akhishiwe.

⑤ Ukuhlukanisa i-wax kapharafini (ngoba i-urea ingakha ama-clathrates), izinto eziphikisayo, izingxenye zikaphethiloli wenjini yokuvikela imvelo, izingxenye zemikhiqizo yamazinyo amhlophe, umanyolo wamakhemikhali, izinto ezisizayo ezibalulekile zokudaya nokuphrinta.

⑥ Imboni yendwangu iyi-ejenti ehle kakhulu yokuncibilikisa udayi/i-hygroscopic/i-viscose fiber enwebekayo, i-ejenti eqeda inhlaka, inokusetshenziswa okubanzi.Ukuqhathaniswa kwezakhiwo ze-hygroscopic ze-urea namanye ama-hygroscopic embonini yendwangu: isilinganiso nesisindo sayo.

Ibanga lezimonyo (isithako esithambisayo)

I-Dermatology isebenzisa ama-agent athile aqukethe i-urea ukwandisa umswakama wesikhumba.Ukugqoka okuvaliwe okusetshenziselwa izinzipho ezingasuswanga ngokuhlinzwa kuqukethe u-40% we-urea.I-Urea iyisithako esihle esithambisayo, ikhona ku-cuticle yesikhumba, iyisici esiyinhloko se-NMF sesikhumba esithambisa isikhumba.