Urea
Lintlha tsa Sehlahisoa
Litlhaloso tse fanoeng
Likaroloana tse tšoeu(litaba ≥46%)
Likaroloana tse mebala-bala(litaba ≥46%)
Kristale ea acicular prism(litaba ≥99%)
(Bophahamo ba referense ea kopo 'ts'ebeliso ea sehlahisoa')
① Sebopeho, sebopeho le likahare tsa limatlafatsi li tšoana, mokhoa oa ho lokolloa ha limatlafatsi le mokhoa oa ho monya lia tšoana, 'me metsi, boima, lerōle le ho hanyetsa lipalangoang le polokelo ea likaroloana li fapane.
② Lebelo la ho qhibiliha, tekanyo ea ho lokolloa ha limatlafatsi le tekanyo ea manyolo ea likaroloana li fapane, 'me tekanyo ea ho qhibiliha ha likaroloana tse nyenyane e potlakile' me phello e potlakile;Ho qhibiliha ha likaroloana tse kholo ho lieha 'me nako ea ho nontša e telele.
③ Likahare tsa urea biuret e kholo li tlase ho feta tsa likaroloana tse nyenyane, tse sebelisoang e le manyolo a motheo, kapa likaroloana tse kholo li sebelisetsoa ho hlahisa menontsha e kopantsoeng.Bakeng sa ho roala ka holimo, urea e nyenyane ea granular e sebelisoa bakeng sa ho fafatsa ka makhasi, ho kenya lesoba, ho kenya foro le ho nontša, le ho sebelisa metsi.
④ Urea e nang le karolo e kholo e na le lerōle le tlaase ha le bapisoa le urea e nyenyane, matla a mangata a ho hatella, metsi a matle, a ka tsamaisoa ka bongata, ha ho bonolo ho pshatla le ho baka, 'me a loketse ho nosetsa ka mochine.
EVERBRIGHT® 'e tla boela e fane ka lintlha tse ikhethileng: content/whiteness/particlesize/PHvalue/color/packagingstyle/ lintlha tsa sephutheloana le lihlahisoa tse ling tse loketseng maemo a hau a ts'ebeliso,' me e fane ka lisampole tsa mahala.
Parameter ea sehlahisoa
57-13-6
200-315-5
60.06
Metsoako ea lintho tse phelang
1.335 g/cm³
qhibilihang ka metsing
196.6°C
132.7 ℃
Tšebeliso ea Sehlahisoa
Taolo ea manyolo
[Phetoho ea palo ea lipalesa]E le ho hlola selemo se seholo le se senyane sa masimo a apole, ho fafatsa 0.5% ea tharollo ea metsi a urea holim'a lekhasi ka mor'a libeke tse 5-6 ka mor'a lipalesa (nako ea bohlokoa ea phapang ea lipalesa tsa apole, kholo ea letlobo e lieha kapa ea emisa. , 'me nitrogen content ea makhasi a bontša mokhoa oa ho theoha), ho fafatsa ka makhetlo a mabeli ka ho latellana, ho ka eketsa naetrojene ea makhasi, ho potlakisa ho hōla ha letlobo le lecha, ho thibela phapang ea lipalesa, le ho etsa hore palo ea lipalesa ea selemo se seholo e tšoanelehe.
[Palesa le litholoana tse fokolang]Litho tsa lipalesa tsa perekisi li na le kutloelo-bohloko ho urea, empa karabelo e lieha, kahoo perekisi e tsoang linaheng tse ling e nang le teko ea urea, liphello li bontša hore perekisi le palesa ea nectarine le litholoana tse fokolang, li hloka mahloriso a maholo (7.4%) ho bontša liphello tse ntle, tse loketseng ka ho fetisisa. mahloriso ke 8% -12%, libeke tse 1-2 ka mor'a ho fafatsa, ho finyella morero oa ho fokotsa lipalesa le litholoana.
[Tlhahiso ea peo ea raese]Ka theknoloji ea tlhahiso ea peō e nyalisitsoeng ea raese, molemong oa ho ntlafatsa sekhahla sa batsoali, e le ho eketsa palo ea tlhahiso ea peo ea raese e nyalisitsoeng kapa palo ea tsoalo ea mela e nyopa, teko e ile ea etsoa ka urea sebakeng sa gibberellin, le tšebeliso. ea 1.5% ho 2% ea urea sethaleng sa tlhōrō ea bokhachane le karolo ea pele ea tsebe (khetho ea tsebe ea 20%), phello ea tsoalo e ne e tšoana le gibberellin, 'me ha ea ka ea eketsa bophahamo ba semela.
[Taolo ea likokoanyana]Ka urea, ho hlatsoa phofo, metsi 4: 1: 400, ka mor'a ho kopanya, ho ka thibela lifate tsa litholoana, meroho, hoaba ea k'hothone, likho tse khubelu, likokoanyana tsa k'habeche le tse ling tse senyang lijalo, phello ea likokoanyana e fetang 90%.[Urea iron manyolo] Urea e etsa tšepe e chelated e nang le Fe2+ ka mokhoa o rarahaneng.Mofuta ona oa manyolo a tšepe o na le litšenyehelo tse tlase le phello e ntle ho thibela khaello ea tšepe le tahlehelo e tala.Phello ea taolo ea chlorosis e betere ho feta ea 0.3% ferrous sulfate.
Ho hatisa le ho daea masela
① E ka sebelisoa e le palo e kholo ea melamine, urea-formaldehyde resin, hydrazine hydrate, tetracycline, phenobarbital, caffeine, VAT brown BR, phthalocyanine B, phthalocyanine Bx, monosodium glutamate le lihlahisoa tse ling tse hlahisang lihlahisoa tse tala.
② E na le phello e khanyang ho polishing ea lik'hemik'hale tsa tšepe le tšepe e sa hloekang, 'me e sebelisoa e le corrosion inhibitor ho pickling ea tšepe, hape e sebelisoa ho lokisa mokelikeli oa palladium activation.
③ indastering, e boetse e sebelisoa e le thepa e tala bakeng sa ho etsa lirekere tsa urea-formaldehyde, polyurethanes le melamine-formaldehyde resin.
④Sesebeletsi se hloahloa sa ho fokotsa khase ea mosi o tukang, hammoho le urea ea likoloi, e entsoeng ka 32.5% ea urea e hloekileng le 67.5% ea metsi a deionized.
⑤ Ho arola boka ba parafine (hobane urea e ka etsa li-clathrates), lisebelisoa tsa refractory, likarolo tsa enjene ea tšireletso ea tikoloho, likarolo tsa lihlahisoa tsa meno a soeufatsang, menontsha ea lik'hemik'hale, lisebelisoa tsa bohlokoa tse thusang ho daea le ho hatisa.
⑥ Indasteri ea masela ke sehlaseli se setle sa dae / hygroscopic agent / viscose faeba e atolosang, e tlatsang resin, e na le mefuta e mengata ea ts'ebeliso.Papiso ea thepa ea hygroscopic ea urea le lisebelisoa tse ling tsa hygroscopic indastering ea masela: karolelano ea boima ba eona.
Cosmetic grade (moisturizing motsoako)
Dermatology e sebelisa lintho tse itseng tse nang le urea ho eketsa mongobo oa letlalo.Seaparo se koetsoeng se sebelisetsoang lipekere tse sa ntšoang ka ho buuoa se na le 40% ea urea.Urea ke motsoako o motle oa moisturizing, o teng ka har'a cuticle ea letlalo, ke karolo ea mantlha ea NMF ea letlalo.
