Methyl 4-chloroacetoacetate
Ethyl-4-chIoroaoetoacetate
Ingoa: Methyl 4-chloroacetoacetate
Tau CAS: 32807-28-6
Tātai rāpoi: C5H7ClO3
Tātai Hanganga: Te ahua: Te wai marama kore tae
Pure:
≥98%.
Waehere HS: 29189900.9
Taumata morearea: 8+6.1
Ira Whakarewa: 16-18°C Ira Kohua: 80°C 5mm Hg(marama) Kiato: 1.305g/mL i te 25°C
(1IT)
Rererere
taupū: N20/D 1.456(marama).
Wairewa wai: 71g/L (20°C) Nga tikanga rokiroki: i raro iho i te 15°C (totoka)
Whakamahinga: whakamahia hei takawaenga mo nga rongoa me nga pesticides
Taapiri: 200KG / oko
Ngā āhuatanga
Ka mura engari kare e mura, he kakara phenol alkyl motuhake.Wairewa i roto i te waipiro, hākawa, pāhare, kakara me ētahi atu whakarewa organic, pērā i te waihā, acetone, butyl acetate, penehīni, toluene, wairewa i roto i te wairewa alkali kaha.Na nga ahuatanga noa o nga matū phenolic, i te whakapiri ki te marama, te wera, te whakapiri ki te hau, ka hohonu haere te tae.
I roto i te hanga ahumahi, p-tert-butylphenol te nuinga whakamahia i roto i te hanga o te hinu wairewa phenolic resin, te waituhi tā, te mura mura, me ētahi atu Kei te whakamahia hoki PTBP rite te polyvinyl pūhaumāota stabilizer, surfactant, me UV absorber.I roto i te mara o nga rauemi whakapā kai, p-tert-butyl phenol te nuinga o te wa e whakamahia ana i roto i te hanga o te polycarbonate resins, a ka taea hoki te whakamahi i roto i te whakahiato o nga taapiri mo nga taonga whakapiri kai.
1. Haumarutanga o PTBP
Ko te PTBP karekau he paitini ira me te mate pukupuku, me te paitini waha o te kiore me te LD50> 2000 mg/kg no te paitini iti.He iti te riri ki te kiri rapeti.Ko te uara NOAEL o te 60 mg/kg·bw/ra i kitea i roto i etahi kiore he rerekee, he uaua ranei te manawa me te heke iho o te albumin plasma i roto i te 42-ra-a-waha tukurua.I tenei wa, no nga estrogens phenolic exogenous te PTBP, a ko te uara NOAEL o te paitini whakawhānau kiore he 200 mg/kg·bw/ra, e tohu ana i etahi paitini whakawhānau.No reira, he raruraru kei te PTBP me te tika kia arohia.
2. Te tono PTBP i roto i nga rauemi whakapiri kai
Ko te PTBP he rawa matū karekau i te waatea, kei te ngaro ranei i roto i nga taonga whakapiri kai.Ka taea te whakamahi hei hanga polymer, hei taapiri ranei.
I roto i nga polymers, ka whakamahia te nuinga hei kaiwhakataki monomer me te kaihoko hiri mutunga.Hei tauira, i roto i te whakakikorua i te waerau, te formaldehyde, te phenol, te p-tert-butylphenol polymers me te polymers o te formaldehyde, te phenol, te p-tert-butylphenol me te n-butanol polymers me te p-tert-butylphenol hei monomer me te timatanga.Poly4,4 '-isopropyl diphenyl carbonate plastics hiritia ki te p-tert-butylphenol i roto i nga polymers kirihou.
Hei taapiri, ka taea te whakamahi hei whakaiti i te ihirangi o te mutunga-hydroxyl i roto i nga paninga me te whakapai ake i te pumau o nga hua.I roto i te kirihou ka taea te whakamahi hei antioxidant, penei mo nga taputapu whakapiri kai kirihou PS me nga hua, hei aukati i te hua ki te whakaputa, ki te whakamahi ranei i te waiariki waiariki, te tere tauhohenga photooxidation, te whakaroa i te paheketanga, te kowhai kowhai, te whakaroa i te mahi. ora o te hua.
He taonga antioxidant te P-tert-butylphenol, ka taea te whakamahi hei whakapumau mo te rapa, te hopi, te hauwai maota me te muka kena.Uv absorbent, pesticide, rapa, peita me etahi atu matū anti kapiti.Hei tauira, whakamahia mo te polycarbon resin, tert-butyl phenolic resin, epoxy resin, polyvinyl chloride, styrene stabilizer.I tua atu, ko reira ano te rauemi mata o te ngarara ngarara ho'oraa, pesticide me te acaricide, kakara me te kaihoko tiaki tipu.Ka taea hoki te whakamahi hei whakangawari, hei whakarewa, hei taapiri o nga tae me nga peita, te antioxidant o te hinu whakahinuhinu, te hinu whakahinu me te taapiri o te wahie waka.
Ētahi atu tono:
(1) Mo te kapia phenolic wairewa hinu, ka taea te whiwhi i te hua me te formaldehyde condensation mo nga momo kaupapa.I roto i te chloroprene adhesive i konatunatua 10-15% o te hua, ki te whiwhi kapia wairewa, tenei ahua o te whakapiri te nuinga whakamahia i roto i te waka, hanga, civil, hu-hanga, me ētahi atu I roto i te waituhi tā, ka taea te whakamahi mo te rosin whakarerekētanga, offset te ta, te whakaahua whakaahua matatau me etahi atu.I roto i te varnish marara, ka taea te whakamahi i roto i te porowhita toua varnish me te laminate Varnish.
(2) Mo te hanga polycarbonate, hei kaihoko whakamutu tauhohenga polycarbonate phosgene, me te taapiri i te pukapuka matū o te 1-3% o te kapia.
(3) Whakamahia mo te epoxy resin, xylene resin whakarereke;Ka rite ki te polyvinyl chloride stabilizer, surfactant, UV absorber.
(4) Ki te āhuatanga antioxidant, ka taea te whakamahi hei rapa, hopi, waiwaro maota me te nitrocelluloose stabilizer.He rauemi mata ano hoki mo te patu pepeke (rongoa), acaricide acaride (pesticide) me te kaihoko tiaki tipu, te kakara, te kapia waihanga, ka taea hoki te whakamahi hei whakamarumaru, whakarewa, tae me te taapiri peita.Ka taea hoki te whakamahi hei whakauru mo te demulsifier mo te mara hinu me te taapiri mo te hinu waka.