I-Topramezone: Isisombululo esiqakathekileko samakhemikhali wezokulima nezamabubulo
Iindawo ezikulu zokusebenza
Emkhakheni wezokulima, i-topramezone lisisekelo sokulawulwa kwekhula kwesimanjemanje. Isebenza njengesivimbeli esinamandla se-4 - hydroxyphenylpyruvate dioxygenase (HPPD) enzyme eentjalweni. Ngokuvimba i-enzayimu eqakathekileko, iphazamisa indlela ye-carotenoid biosynthesis ekhula, okurholela ekutheni amakari wawo abe mhlophe, ukurhaba kokukhula, begodu ekugcineni, ukufa. Indlela le yenza bona isebenze kuhle khulu malungana nokhula olunengi olutjani kanye namakari amakhulu, okufaka hlangana imihlobo eminengi engajamelana nemithi yokubulala ukhula. Eentjalweni ezifana nommbila, i-topramezone inikela ngokukhetha okuhle khulu, okwenza bona ihlasele ikhula ngesikhathi inciphisa ukulimala kwesitjalo. Ingasetjenziswa ngaphambi kokuvela, ukwenza isithiyo sokuvikela ehlabathini ukukhandela ukumila kwekhula, nofana ngemva kokuvela, ukulwisana ngqo nokhula olukhulako begodu kwehlise ukuncintisana ngeensetjenziswa, ngaleyindlela kukhuphule khulu isivuno nekhwalithi yeentjalo.
Embonini yokwenza amakhemikhali, i-topramezone isebenza njengesiphakathi esiqakathekileko. Isakhiwo sayo esihlukileko samakhemikhali siyenza bona ihlanganyele ekuphenduleni okuhlukahlukeneko ukukhiqiza amanye amakhemikhali aqakathekileko. Ukwenza isibonelo, ama-derivatives we-topramezone angahlanganiswa abe mamolekhyuli ahlangahlangeneko anezinto ezithuthukisiweko zokubulala ukhula nofana eminye imisebenzi ekhethekileko. Amakhompawundi la ahlanganisiweko angathola ukusetjenziswa ingasi emkhakheni wamakhemikhali wezokulima kwaphela kodwana nemikhakheni ehlobene nayo njengokurhubhulula nokuthuthukisa imikhiqizo yokuvikela iintjalo yesizukulwana esitjha.
I-Topramezone nayo ineensetjenziswa ezingaba khona ekuthuthukisweni kweensombululo zokulawula ikhula emabubulweni. Eendaweni ezingatjali njengeendawo zamabubulo, eceleni kweendlela, kanye nemisele yesitimela, inikela ngendlela ephumelelako yokulawula iintjalo ezingafunekiko. Ngokugandelela ukukhula kokhula eendaweni lezi, kusiza ukugcina ubuqotho bomthangalasiseko, kwehlisa ubungozi bokuphepha obuhlobene neentjalo ezikhule khulu, begodu kunciphisa isidingo sokususwa kokhula kanengi ngezandla nofana ngomtjhini, ukonga isikhathi neendleko zabasebenzi.
Kodwana, ngitjho nanyana i-topramezone inikela ngeenzuzo ezinengi, itlhoga ukuphathwa ngokutjheja. Kufanele igcinwe endaweni epholileko, eyomileko kude nokukhanya kwelanga kanye nezinto ezingahambisaniko. Lokha nakusetjenziswa i-topramezone, abasebenzisi kufanele balandele imithetho yokuphepha eqinileko, okufaka hlangana ukugqoka izambatho ezifaneleko zokuvikela, amagilavu, namagogolosi, ngombana kungabangela ukucasuka kwesikhumba namehlo. Ukungezelela, iindlela ezifaneleko zokulahla nanyana ngimuphi umkhiqizo ongasetjenziswako nofana izinto zokupakisha kufanele zilandelelwe, ukukhandela ukusilaphazeka kwebhoduluko.
Iinqophiso
| Ibizo lomkhiqizo | I-Topramezone | |||||||||
| Ifomula yamakhemikhali | C14H13ClN4O3 | |||||||||
| Ubunzima bamamolekhyuli | 320.73 g/mol | |||||||||
| Ukuvela | Okuqinileko okungenambala | |||||||||
| Indawo yokuncibilika | 134.1°C | |||||||||
| Indawo yokubila | 420.2°C | |||||||||
| Ukuminyana | 1.35 | |||||||||
| CAS NO | 210631 - 68 - 8 | |||||||||
| Ikhodi ye-HS | 29339900.9 | |||||||||
| Isibawo | Umuthi wokubulala ikhula elinamakari amakhulu notjani emasimini wommbila | |||||||||
Iphepha lokulawula ikhwalithi
| Ibizo lomkhiqizo | |||||||
| I-AYITHEMU | INANI LOKUHLOLA (%) | ||||||
| Ukuvela | Okuqinileko okungenambala | ||||||
| Okumunyethweko | ≥98% | ||||||
| Umswakamo | ≤0.5% | ||||||
| PH | 3-7 | ||||||
Ngokufingqa
Ekuphetheni, i-topramezone sele ibe yikhemikhali eqakathekileko kwezokulima kwesimanjemanje kanye namabubulo ahlobene nawo. Ikhono layo lokulawula ikhula ngendlela ephumelelako, ukusebenza njengesilinganiso esiqakathekileko ekukhiqizeni amakhemikhali, nokunikela ngeensombululo zokulawulwa kokhula emabubulweni kuveza ukuqakatheka kwayo. Njengombana ithekhnoloji iragela phambili nokutjhuguluka, ukusetjenziswa okungenzeka nomthelela we-topramezone kulindeleke bona kwande khulu, kuqinise ubujamo bayo njengesisombululo samakhemikhali esiqakathekileko.