(R) – (+) – 2 – (4-Hydroxyphenoxy) I-Propionic Acid (HPPA)
Impahla: (R) – (+) – 2 – (4-Hydroxyphenoxy) I-Propionic Acid (HPA)
Inombolo ye-CAS: 94050-90-5
Ifomula yeMolekyuli: C9H10O4
Ifomula yoLwakhiwo:
Ukusetyenziswa: Isetyenziswa ekuhlanganiseni i-aryloxy phenoxy-propionates herbicide.
Iinkcukacha:
| Into | Umgangatho |
| Inkangeleko | I-crystalline solid emhlophe |
| Uvavanyo lwekhemikhali | ≥99.0% |
| Ubumsulwa bokubona | ≥99.0% |
| Indawo yokunyibilika | 143-147℃ |
| Ukufuma | ≤0.5% |
Isicelo esithile
Izibulali-zinambuzane eziphakathi; Isetyenziswa njengesixhobo esiphakathi se-puma, i-Gaicao esebenza kakuhle, i-jingwensha, i-jingquizalofop, i-alkyne ester kunye nezinye izibulali-zinambuzane
Indlela yemveliso
1. I-P-chlorobenzoyl chloride yalungiswa ngempendulo ye-p-chlorobenzoyl chloride ene-anisole, ilandelwa yi-hydrolysis kunye ne-demethylation.
2. Isiphumo se-p-chlorobenzoyl chloride kunye ne-phenol: nyibilikisa i-9.4g (0.1mol) ye-phenol kwi-4ml yesisombululo se-10% ye-sodium hydroxide, yongeza i-14ml (0.110mol) ye-p-chlorobenzoyl chloride ngokuwa kwi-40 ~ 45 ℃, yongeze kwimizuzu engama-30, kwaye uphendule kubushushu obufanayo kwi-1H. Pholisa kubushushu begumbi, hluza kwaye womise ukuze ufumane i-22.3g ye-phenyl p-Chlorobenzoate. Isivuno yi-96%, kwaye iqondo lokunyibilika yi-99 ~ 101 ℃.
Unyango olungxamisekileyo lokuvuza
Amanyathelo okukhusela, izixhobo zokukhusela kunye neenkqubo zokulahla izinto ezingxamisekileyo kubasebenzi:
Kucetyiswa ukuba abasebenzi bonyango olungxamisekileyo banxibe izixhobo zokuphefumla umoya, iimpahla ezingashukumiyo kunye neeglavu ezingashukumiyo zerabha.
Musa ukuyichukumisa okanye ukuyinqumla ichithekele.
Zonke izixhobo ezisetyenzisiweyo ngexesha lokusebenza mazibekwe phantsi komhlaba.
Nciphisa umthombo wokuvuza kangangoko unako. Susa yonke imithombo yokutsha.
Indawo yesilumkiso mayimiselwe ngokwendawo echaphazelekileyo kukuhamba kolwelo, umphunga okanye ukusasazeka kothuli, kwaye abasebenzi abangafanelekanga baya kuthunyelwa kwindawo yokhuseleko besuka kumoya ovuthuzayo naphezulu.
Amanyathelo okukhusela okusingqongileyo: athintela ukuvuza ukuze kuthintelwe ungcoliseko lokusingqongileyo. Athintele ukuvuza ukuba kungangeni kwimijelo yamanzi amdaka, amanzi angaphezulu komhlaba kunye namanzi angaphantsi komhlaba.
Iindlela zokugcina nokususa iikhemikhali ezivuzayo kunye nezinto zokulahla ezisetyenzisiweyo:
Ukuvuza okuncinci: qokelela ulwelo oluvuzayo kwisikhongozeli esivalekayo kangangoko kunokwenzeka. Funxa ngesanti, i-activated carbon okanye ezinye izinto ezingasebenziyo uze uzifake kwindawo ekhuselekileyo. Musa ukuhlambulula umjelo wamanzi amdaka.
Ukuvuza okukhulu: yakha idike okanye umbe umngxuma wokwamkela. Vala umbhobho wokukhupha amanzi. Igwebu lisetyenziselwa ukugquma ukufuma. Dlulisa kwinqwelo yetanki okanye kwisiqokeleli esikhethekileyo esinepompo engaqhumiyo, ukuphinda uyisebenzise okanye uthuthe uye kwindawo yokucoca inkunkuma ukuze ilahlwe.
Izixhobo zokuzikhusela zomntu:
Ukhuseleko lokuphefumla: xa uxinzelelo emoyeni ludlula umgangatho oqhelekileyo, nxiba imaski yegesi yokucoca (isiqingatha semaski). Xa uhlangula okanye uphuma kwindawo engxamisekileyo, kufuneka unxibe isixhobo sokuphefumla umoya.
Ukukhusela izandla: nxiba iiglavu ezimelana neoyile yerabha.
Ukukhusela amehlo: nxiba amehlo okukhusela amachiza.
Ukhuseleko lolusu nomzimba: Nxiba iimpahla zokusebenza ezithintela ukungena kwetyhefu.
