(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Imveliso:(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
CAS #: 94050-90-5
Ifomula yemolekyuli: C9H10O4
Ifomula yoLwakhiwo:
Ukusetyenziswa: Isetyenziselwa ukuhlanganiswa kwe-aryloxy phenoxy-propionates herbicide.
Iinkcukacha :
| Into | Umgangatho |
| Imbonakalo | Ukuqina kwekristale emhlophe |
| Uvavanyo lwekhemikhali | ≥99.0% |
| Ukucoceka kwamehlo | ≥99.0% |
| Indawo yokunyibilika | 143-147℃ |
| Ukufuma | ≤0.5% |
Usetyenziso oluthile
Izibulali zinambuzane; Isetyenziswa njengendawo ephakathi yepuma, ukusebenza kakuhle okuphezulu kweGaicao, ijingwensha, ijingquizalofop, ialkyne ester kunye nezinye izitshabalalisi.
Indlela yokuvelisa
1. I-P-chlorobenzoyl chloride yalungiswa ngokusabela kwe-p-chlorobenzoyl chloride kunye ne-anisole, ilandelwa yi-hydrolysis kunye ne-demethylation.
2. Ukusabela kwe-p-chlorobenzoyl chloride kunye nephenol: nyibilikisa i-9.4g (0.1mol) ye-phenol kwi-4ml ye-10% yesisombululo se-sodium hydroxide, yongeza i-14ml (0.110mol) ye-p-chlorobenzoyl chloride dropwise kwi-40 ~ 45 ℃. 30min, kwaye usabele kwiqondo lobushushu elifanayo kwi-1H. Ukuphola kwiqondo lobushushu begumbi, hluza kwaye wome ukufumana i-22.3g yephenyl p-Chlorobenzoate. Isivuno ngama-96%, kwaye indawo yokunyibilika yi-99 ~ 101 ℃.
Ukuvuza unyango olungxamisekileyo
Amanyathelo okukhusela, izixhobo zokukhusela kunye neenkqubo zokulahla ngokukhawuleza kubaqhubi:
Kucetyiswa ukuba abasebenzi bonyango olungxamisekileyo banxibe izixhobo zokuphefumla umoya, iimpahla ezichasene ne-static kunye neeglavu ezixhathisa i-oyile yerabha.
Musa ukubamba okanye unqamleze ukuchitheka.
Zonke izixhobo ezisetyenziswa ngexesha lokusebenza ziya kumiselwa phantsi.
Sika umthombo wokuvuza kangangoko. Susa yonke imithombo yokutshisa.
Indawo yesilumkiso iya kumiselwa ngokwendawo echatshazelwa kukuhamba kolwelo, umphunga okanye ukusasazwa kothuli, kwaye abasebenzi abangabalulekanga baya kukhutshelwa kwindawo yokhuseleko ukusuka kumoya onqumlayo kunye nophezulu.
Amanyathelo okukhusela okusingqongileyo: ziqulathe ukuvuza ukuphepha ukungcoliseka kwendalo. Thintela ukuvuza ekungeneni kwimijelo ephantsi komhlaba ehambisa amanzi amdaka, kumanzi angaphezulu naphantsi komhlaba.
Ukugcinwa kunye neendlela zokususa iikhemikhali ezivuzayo kunye nezixhobo zokulahla ezisetyenzisiweyo:
Ukuvuza okuncinci: qokelela ulwelo oluvuzayo kwisikhongozeli esivalekayo kangangoko unako. Funxa ngesanti, i-carbon activated okanye ezinye izinto ezingasebenziyo kwaye udlulisele kwindawo ekhuselekileyo. Musa ukugungxula kumjelo ophantsi komhlaba ohambisa amanzi amdaka.
Ukuvuza okukhulu: Yakha idike okanye umbe umngxuma wokwamkela. Vala umbhobho wokukhupha amanzi. Igwebu lisetyenziselwa ukuvala umoya wokuphuma kwamanzi. Ukutshintshela kwimoto yetanki okanye umqokeleli okhethekileyo ngempompo engagqabhukiyo, isetyenziswe ngokutsha okanye ithuthelwe kwindawo yokucoca inkunkuma ukuze ilahlwe.
Izixhobo zokuzikhusela:
Ukukhuselwa kokuphefumula: xa ukugxininiswa emoyeni kudlula umgangatho, nxiba imaski yegesi yokucoca (isiqingatha semaski). Xa uhlangula okanye uphuma kwindawo engxamisekileyo, kufuneka unxibe izixhobo zokuphefumla umoya.
Ukukhuselwa kwesandla: nxiba iiglavu ezixhathisa i-oyile yerabha.
Ukukhuselwa kwamehlo: nxiba amehlo okhuseleko lwekhemikhali.
Ukhuseleko lolusu kunye nomzimba: nxiba iimpahla zokusebenza ezichasene netyhefu.
