(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPA)
Chigadzirwa: (R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPA)
Nhamba yeCAS: 94050-90-5
Fomura yeMorekuru: C9H10O4
Fomura Yekuvaka:
Mashandisirwo: Inoshandiswa mukugadzirwa kwemishonga yekuuraya utachiona ye aryloxy phenoxy-propionates.
Magadzirirwo:
| Chinhu | Zvakajairika |
| Chitarisiko | Chena kristalo yakasimba |
| Kuyedzwa kwemakemikari | ≥99.0% |
| Kuchena kwemaziso | ≥99.0% |
| Nzvimbo yekunyunguduka | 143-147℃ |
| Hunyoro | ≤0.5% |
Kushandiswa kwakananga
Mishonga yekuuraya zvipembenene; Inoshandiswa semushonga wepakati wepuma, Gaicao inoshanda zvakanyanya, jingwensha, jingquizalofop, alkyne ester nemimwe mishonga yekuuraya zvipembenene.
Nzira yekugadzira
1. P-chlorobenzoyl chloride yakagadzirwa nekuita kwep-chlorobenzoyl chloride neanisole, zvichiteverwa nehydrolysis uye demethylation.
2. Kuita kwep-chlorobenzoyl chloride nephenol: nyungudutsa 9.4g (0.1mol) yephenol mu4ml ye10% sodium hydroxide solution, wedzera 14ml (0.110mol) yep-chlorobenzoyl chloride dropwise pa40 ~ 45 ℃, wedzera mukati memaminitsi makumi matatu, uye gadzirisa patembiricha imwechete kwe1H. Tonhorera kusvika patembiricha yemukamuri, sefa woomesa kuti uwane 22.3g yephenyl p-Chlorobenzoate. Goho iri 96%, uye poindi yekunyunguduka iri 99 ~ 101 ℃.
Kurapwa kwekukurumidzira kwekubuda kwemvura
Matanho ekudzivirira, michina yekudzivirira uye nzira dzekurasa zvinhu nekukurumidza kune vanoshanda:
Zvinokurudzirwa kuti vashandi vekurapa panguva yekukurumidzira vapfeke midziyo yekufema mweya, mbatya dzinodzivirira kupisa uye magirovhosi anodzivirira mafuta erabha.
Musabata kana kuyambuka mvura inodururwa.
Midziyo yese inoshandiswa panguva yekushanda inofanira kunge yakamiswa pasi.
Bvisa panobva mvura inobuda zvakanyanya sezvinobvira. Bvisa zvese zvinobatidza moto.
Nzvimbo yekuyambira inofanira kusarudzwa zvichienderana nenzvimbo yakakanganiswa nekuyerera kwemvura, utsi kana guruva, uye vashandi vasina basa vanofanira kutamiswa kuenda kunzvimbo yakachengeteka kubva kumhepo nemhepo iri kukwira.
Matanho ekudzivirira nharaunda: kudzivirira kudonha kwemvura kuti isasvibiswe. Kudzivirira kudonha kwemvura kuti isapinde mumapombi emvura, pamusoro pemvura uye pasi pevhu.
Nzira dzekuchengetedza nekubvisa makemikari akabuda nemvura nezvinhu zvinoraswa zvinoshandiswa:
Kudonhedza kudiki: unganidza mvura inodonhedza mumudziyo unovharika kusvika pazvinogoneka. Nywa nejecha, kabhoni yakakangwa kana zvimwe zvinhu zvisina simba wozviendesa kunzvimbo yakachengeteka. Usasundire mumvura yetsvina.
Kubuda kwemvura kwakakura: gadzira gomba remvura kana kuchera gomba rekugamuchira. Vhara pombi yekudhonza mvura. Furo rinoshandiswa kufukidza kupwa kwemvura. Tumira kumota yetangi kana muunganidzi wezvinhu zvine pombi isingaputike, dzokorora kana kutakurwa kuenda kunzvimbo yekurasira marara kuti araswe.
Zvishandiso zvekudzivirira munhu:
Dziviriro yekufema: kana huwandu hwemhepo hwapfuura mwero wenguva dzose, pfeka chifukidzo chegasi chinosefa (hafu yechifukidzo). Paunenge uchinunura kana kubuda munjodzi, unofanira kupfeka mudziyo wekufema mweya.
Dziviriro yemaoko: pfeka magirovhosi anodzivirira mafuta erabha.
Dziviriro yemaziso: pfeka maziso ekudzivirira kuchengetedzwa nemakemikari.
Dziviriro yeganda nemuviri: pfeka mbatya dzebasa dzinodzivirira chepfu.
