I-Methyl 4-chloroacetoacetate
I-Ethyl-4-chIoroaoetoacetate
Igama: Methyl 4-chloroacetoacetate
Inombolo ye-CAS: 32807-28-6
I-Molecular Formula: C5H7ClO3
Ifomula Yesakhiwo: Ukubukeka: Uketshezi olukhanyayo olungenambala
Ubumsulwa:
≥98%.
Ikhodi ye-HS: 29189900.9
Izinga Lengozi: 8+6.1
Iphuzu Elincibilikayo: 16-18°C Indawo yokubila: 80°C 5mm Hg(lit) Ukuminyana: 1.305g/mL ku-25°C
(1IT)
I-Refractive
inkomba: N20/D 1.456(lit).
Ukunyibilika kwamanzi: 71g/L (20°C) Izimo zesitoreji: ngaphansi kuka-15°C (okuqinile)
Ukusetshenziswa: isetshenziswa njengemaphakathi ekhemisi nezibulala-zinambuzane
Ukupakisha: 200KG / umgqomo
Izici
Iyavutha kodwa ayivuthi, inephunga elikhethekile le-alkyl phenol.Incibilika otshwaleni, i-ester, i-alkane, iphunga elimnandi nezinye izincibilikisi eziphilayo, njenge-ethanol, i-acetone, i-butyl acetate, uphethiloli, i-toluene, inyibilika kusixazululo esiqinile se-alkali.Ngezici ezivamile zezinto ze-phenolic, ekuthintaneni nokukhanya, ukushisa, ukuthintana nomoya, umbala ujula kancane kancane.
Emkhiqizweni wezimboni, i-p-tert-butylphenol isetshenziswa ikakhulukazi ekukhiqizeni i-phenolic resin encibilikayo kawoyela, inki yokunyathelisa, i-flame retardant, njll. I-PTBP iphinde isetshenziswe njenge-polyvinyl chloride stabilizer, i-surfactant, ne-Absorber ye-UV.Emkhakheni wezinto zokuxhumana zokudla, i-p-tert-butyl phenol ivame ukusetshenziswa ekukhiqizeni ama-polycarbonate resins, futhi ingasetshenziswa ekuhlanganiseni izithasiselo zezinto zokuxhumana zokudla.
1. Ukuphepha kwe-PTBP
I-PTBP ayinabo ubuthi bezakhi zofuzo kanye ne-carcinogenic, futhi ubuthi obunzima bomlomo wamagundane ane-LD50> 2000 mg/kg bungobobuthi obuphansi.Inokucasuka okumaphakathi esikhumbeni sikanogwaja.Inani le-NOAEL le-60 mg / kg · bw / ngosuku labonwa kwamanye amagundane anokuphefumula okungavamile noma okunzima nokunciphisa i-plasma albumin ngesikhathi sokuphindaphinda komlomo kwezinsuku ezingu-42.Phakathi naleso sikhathi, i-PTBP ingeka-exogenous phenolic estrogens, futhi inani le-NOAEL lobuthi bokuzala begundane lingu-200 mg/kg·bw/usuku, okubonisa ubuthi obuthile bokuzala.Ngakho-ke, i-PTBP inezingozi ezithile futhi idinga ukunakwa.
2. Ukusetshenziswa kwe-PTBP ezintweni zokuxhumana zokudla
I-PTBP ikhemikhali yempahla eluhlaza engatholakali noma engekho ezintweni ezithinta ukudla.Ingasetshenziswa njengokukhiqizwa kwe-polymer noma okungeziwe.
Kuma-polymers, asetshenziswa ikakhulukazi njenge-monomer starter kanye ne-ejenti yokuvala uphawu.Isibonelo, ekuhlanganiseni ama-polymers asekelwe, i-formaldehyde, i-phenol, i-p-tert-butylphenol polymers nama-polymers we-formaldehyde, i-phenol, i-p-tert-butylphenol nama-n-butanol polymers ane-p-tert-butylphenol njenge-monomer nesiqalisi.I-Poly4,4 '-isopropyl diphenyl carbonate plastics evalwe nge-p-tert-butylphenol kuma-polymer epulasitiki.
Njengesengezo, ingasetshenziswa ukunciphisa okuqukethwe kwe-end-hydroxyl ekugqokeni futhi kuthuthukiswe ukuzinza kwemikhiqizo.Kupulasitiki kungasetshenziswa njenge-antioxidant, njengezinto zokuxhumana zokudla zepulasitiki ze-PS kanye nemikhiqizo, ukuze kuvinjwe umkhiqizo ekukhiqizeni noma ekusetshenzisweni kwe-oxidation eshisayo, isivinini sokusabela kwe-photooxidation, ukuwohloka ukubambezeleka, inqubo yokuguga ephuzi, futhi andise insizakalo. impilo yomkhiqizo.
I-P-tert-butylphenol ine-antioxidant futhi ingasetshenziswa njengesiqinisi serabha, insipho, ama-hydrocarbon ane-chlorinated kanye nemicu yokugaya ukudla.Ukumunca i-Uv, isibulala-zinambuzane, irabha, upende nokunye okunqanda ukuqhekeka.Isibonelo, isetshenziselwa i-polycarbon resin, i-tert-butyl phenolic resin, i-epoxy resin, i-polyvinyl chloride, i-styrene stabilizer.Ngaphezu kwalokho, kuphinde kube yimpahla eluhlaza yesibulala-zinambuzane ezenza imithi, isibulala-zinambuzane kanye ne-acaricide, iphunga elimnandi ne-ejenti yokuvikela izitshalo.Ingasetshenziswa futhi njengesithambisi, isincibilikisi, isithasiselo sikadayi nopende, i-antioxidant yamafutha okugcoba, i-demulsifier kawoyela kanye nesengezo samafutha emoto.
Ezinye izinhlelo zokusebenza:
(1) Nge-phenolic resin encibilikayo kawoyela, umkhiqizo kanye ne-formaldehyde condensation ingatholwa ngezinhloso ezahlukahlukene.Ku-adhesive ye-chloroprene exutshwe u-10-15% womkhiqizo, ukuze uthole inhlaka encibilikayo, lolu hlobo lokunamathisela lusetshenziswa kakhulu kwezokuthutha, ukwakhiwa, ukwakhiwa kwezicathulo, njll. ukuphrinta, i-photogravure ethuthukisiwe nokunye.Ku-varnish ye-insulation, ingasetshenziswa ku-coil dip varnish kanye ne-laminate varnish.
(2) Ngokukhiqizwa kwe-polycarbonate, njenge-ejenti yokunqanyulwa kwe-phosgene polycarbonate, wengeza inani le-Chemicalbook lika-1-3% we-resin.
(3) Isetshenziselwa i-epoxy resin, ukuguqulwa kwe-xylene resin;Njenge-polyvinyl chloride stabilizer, i-surfactant, i-UV absorber.
(4) Ngezindawo zokulwa ne-antioxidant, ingasetshenziswa njengenjoloba, insipho, ama-hydrocarbon ane-chlorinated kanye ne-nitrocelluloose stabilizer.Iphinde ibe yimpahla eluhlaza yesixosha izinambuzane (umuthi), i-acaricide acaride (isibulala-zinambuzane) kanye ne-ejenti yokuvikela izitshalo, iphunga elimnandi, i-synthetic resin, futhi ingasetshenziswa njengesithambisi, isinyibilikisi, udayi nesithasiselo sikapende.Ingasetshenziswa futhi njengesithako se-demulsifier endaweni kawoyela kanye nesengezo samafutha emoto.