Phenyltriethoxysilane; I-PTES (CAS#780-69-8)
Intshayelelo: Ushwankathelo
Ikhompawundi echongiweyo ngenombolo ye-CAS 780-69-8 ibizwa ngokuba yi-2,4-dichlorobenzoic acid (2,4-D). Ngenxa yokusebenza kwayo njengeyeza lokutshabalalisa ukhula, le khemikhali ifumene ukuqondwa ngokubanzi kwicandelo lezolimo. Iluncedo kakhulu ekulawuleni ukhula olunamagqabi abanzi kwizityalo ezahlukeneyo, nto leyo iyenza ibe kukutya okusisiseko kwiinkqubo zolimo zanamhlanje.
I-2.4-D yaqala ukwenziwa ngoo-1940 kwaye ukususela ngoko iye yaba yenye yezona zinto zixhaphakileyo zokutshabalalisa ukhula ehlabathini. Indlela yayo yokwenza ibandakanya ukulinganisa iihomoni zezityalo zendalo, ezibangela ukuba ukhula olujoliswe kuyo lukhule ngokungalawulekiyo, lukhokelela ekufeni kwalo. Oku kukhetha kwenza amafama agcine izivuno zezityalo kwaye alawule ngokufanelekileyo inani lokhula.
Ukwaziswa kwe-2,4-D kwindlela yokusebenza kwezolimo kuphucule kakhulu isivuno kunye nokusebenza kakuhle kwezolimo. Nangona kunjalo, ukusetyenziswa kwayo akunakuphikiswa. Iinkxalabo malunga nefuthe layo lokusingqongileyo kunye nobungozi bempilo obunokubakho kuye kwakhokelela kuphando olubanzi kunye nokuhlaziywa kokulawula. Abaphandi baphanda iziphumo ze-2,4-D kwizinto ezingajoliswanga kwizinto eziphilayo, ezibandakanya izinambuzane ezixhamlayo kunye nezinto eziphilayo zasemanzini, kunye nobudlelwane obunokubakho kunye nemiba yempilo yabantu.
Ukujongana nezi nkxalabo, ii-arhente ezilawulayo ziye zaqulunqa izikhokelo zokusetyenziswa ngokukhuselekileyo kwe-2,4-D ukuqinisekisa ukuba zinokusetyenziswa ngokufanelekileyo ngelixa zinciphisa ingozi. Ukongeza, ukuqhubela phambili kobugcisa bokuqulunqa kukhokelele ekuphuhlisweni kweendlela zokusetyenziswa ezijoliswe ngakumbi, ngakumbi ukunciphisa indawo yokusingqongileyo yalo mchiza wokutshabalalisa ukhula.
Isishwankathelo, i-780-69-8 okanye i-2,4-D idlala indima ebalulekileyo kwezolimo zanamhlanje, ukubonelela ngokutshabalalisa ukhula olusebenzayo kunye nokuphakamisa imiba ebalulekileyo yokhuseleko nokuzinza. Ngophuhliso oluqhubekayo lwemimandla yezolimo, uphando oluqhubekayo kunye nezenzo zolawulo oluthembekileyo zibalulekile ekulinganiseni iinzuzo kunye nobungozi obunokubakho bolu hlobo lokutshabalalisa ukhula.