Methyl 4-chloroacetoacetate
Ethyl-4-chIoroaoetoacetate
Magaca: Methyl 4-chloroacetoacetate
Lambarka CAS: 32807-28-6
Qaacidada unugyada: C5H7ClO3
Qaab-dhismeedka: Muuqaalka: Dareere hufan oo aan midab lahayn
daahirnimo
≥98%.
Koodhka HS: 29189900.9
Heerka Khatarta: 8+6.1
Meesha dhalaalaysa: 16-18°C barta karkarinta: 80°C 5mm Hg(shiday) cufnaanta: 1.305g/ml at 25°C
(1IT)
Refractive
tusaha: N20/D 1.456(lit).
Biyaha milmay: 71g/L (20°C) Xaaladaha kaydinta: ka hooseeya 15°C (adag)
Isticmaalka: loo isticmaalo dhexdhexaadinta daawooyinka iyo sunta cayayaanka
Xirmooyinka: 200KG/fuusto
Astaamaha
Dab kar laakiin aan guban karin, waxa uu leeyahay ur gaar ah oo alkyl phenol ah.Ku milma khamriga, ester, alkane, caraf udgoon iyo dareerayaasha kale ee organic, sida ethanol, acetone, butyl acetate, gaaska, toluene, milma in xal alkali xoog leh.Iyada oo sifooyinka caadiga ah ee walxaha phenolic, la xidhiidha iftiinka, kulaylka, xidhiidhka hawada, midabka si tartiib tartiib ah u qoto dheer.
In wax soo saarka warshadaha, p-tert-butylphenol waxaa inta badan loo isticmaalaa in wax soo saarka ee xabagta phenolic saliid milmay, khad daabacaadda, olol retardant, iwm PTBP sidoo kale loo isticmaalaa sida stabilizer polyvinyl chloride ah, surfactant, iyo UV nuugista.Dhinaca agabka xidhiidhka cuntada, p-tert-butyl phenol waxa inta badan loo adeegsadaa soo saarista xabagta polycarbonate, waxa kale oo loo isticmaali karaa isku-darka waxyaabaha lagu daro agabka xidhiidhka cuntada.
1. Ammaanka PTBP
PTBP ma laha sunta hidda-socodka iyo kansarka, iyo sunta afka ba'an ee jiirka ee leh LD50> 2000 mg/kg ayaa iska leh sunta hoose.Waxay leedahay xanaaq dhexdhexaad ah maqaarka bakaylaha.Qiimaha NOAEL ee 60 mg/kg·bw/maalintii ayaa lagu arkay qaar ka mid ah jiirka oo leh neefsasho aan caadi ahayn ama adag oo ay hoos u dhacday balaasmaha albumin inta lagu jiro 42-maalmood oo ku celcelin afka ah.Dhanka kale, PTBP waxay iska leedahay estrogens phenolic exogenous, iyo qiimaha NOAEL ee sunta taranka jiirka waa 200 mg / kg ·bw / maalin, taasoo muujinaysa qaar ka mid ah sunta taranka.Sidaa darteed, PTBP waxay leedahay khataro gaar ah waxayna mudan tahay fiiro gaar ah.
2. Codsiga PTBP ee agabka xidhiidhka cuntada
PTBP waa walxo kiimiko ah oo ceeriin ah oo aan la heli karin ama ka maqan agabka xidhiidhka cuntada.Waxaa loo isticmaali karaa sida wax soo saarka polymer ama wax lagu daro.
polymers-ka, waxaa inta badan loo isticmaalaa sidii monomer-ka bilawga ah iyo wakiilka xidhitaanka dhamaadka.Tusaale ahaan, daahan ku salaysan polymers, formaldehyde, phenol, p-tert-butylphenol polymers iyo polymers of formaldehyde, phenol, p-tert-butylphenol iyo polymers n-butanol la p-tert-butylphenol sida monomer iyo bilowga.Poly4,4 '-isopropyl diphenyl carbonate balaastig ah oo lagu shaabadeeyay p-tert-butylphenol ee polymers caag ah.
Sida wax lagu daro, waxaa loo isticmaali karaa in lagu yareeyo nuxurka end-hydroxyl ee dahaarka iyo hagaajinta xasiloonida alaabta.In caagga ah waxaa loo isticmaali karaa sida antioksidanter, sida PS caag ah cuntada xiriirka alaabta iyo alaabta, si ay u joojiyaan badeecada soo saarista ama isticmaalka oksaydhka kulaylka, xawaaraha falcelinta photooxidation, hoos u dhaca xaalufka, geeddi-socodka gabowga jaalaha ah, iyo dheeraynta adeegga. nolosha alaabta.
P-tert-butylphenol waxay leedahay sifooyin antioxidant waxaana loo isticmaali karaa xasiliye ahaan caagga, saabuunta, hydrocarbons koloriin leh iyo fiilooyinka dheefshiidka.Uv nuugista, sunta cayayaanka, caagga, rinjiga iyo walxaha kale ee ka hortagga dildilaaca.Tusaale ahaan, loo isticmaalo xabagta polycarbon, tert-butyl phenolic resin, epoxy resin, polyvinyl chloride, styrene stabilizer.Intaa waxaa dheer, sidoo kale waa alaabta ceeriin ee cayayaanka daawada, sunta cayayaanka iyo acaricide, udgoonka iyo wakiilka ilaalinta dhirta.Waxa kale oo loo isticmaali karaa jilciye, dareere, lagu daro dheeha iyo rinjiyada, antioksidanter ee saliidda saliidda, demulsifier saliid iyo daro ee shidaalka baabuurta.
Codsiyada kale:
(1) Saliidda phenolic ee ku milma saliidda, badeecada iyo uumiga formaldehyde waxaa loo heli karaa ujeedooyin kala duwan.In xabagta chloroprene isku qasan 10-15% ee alaabta, si aad u hesho xabagta milmi, noocan oo kale ah koollada waxaa inta badan loo isticmaalaa in gaadiidka, dhismaha, madaniga ah, kabo-samaynta, iwm In khad daabacaadda, waxaa loo isticmaali karaa beddelka rosin, dhimis. daabacaad, sawir-qaadis heersare ah iyo wixii la mid ah.Daboolka dahaarka ah, waxaa loo isticmaali karaa varnish dip gariiradda iyo laminate varnish.
(2) Soo saarista polycarbonate, sida fosgene polycarbonate wakiilka joojinta falcelinta, ku darida qaddarka buug-Kimikada 1-3% ee xabagta.
(3) Loo isticmaalo resin epoxy, wax ka beddelka resin xylene;Sida polyvinyl chloride stabilizer, surfactant, nuugeeyaha UV.
(4) Iyada oo leh sifooyinka antioxidant, waxaa loo isticmaali karaa sidii caag, saabuun, hydrocarbons koloriin leh iyo nitrocelluloose stabilizer.Sidoo kale waa walxo cayriin ah oo ka hortag ah cayayaanka (daaw), acaricide acaride (cayayaanka cayayaanka) iyo wakiilka ilaalinta dhirta, udgoonka, resin synthetic, iyo sidoo kale waxaa loo isticmaali karaa jilciye, dareere, dheeh iyo rinji lagu daro.Waxa kale oo loo isticmaali karaa sida walxaha demulsifier ee goobta saliidda iyo wax lagu daro saliidda baabuurta.