“Methylphenyldichlorosilane; MPDCS; Phenylmethyldichlorosilane; PMDCS ”(CAS # 149-74-6)
Iriburiro ryibanze149-74-6
Ikomatanyirizo hamwe nindangamuntu149-74-6yitwa aside 2,4-dichlorobenzoic (2,4-D), imiti ikoreshwa cyane ikoreshwa mu buhinzi. Uru ruganda rufite akamaro kanini mukurwanya ibyatsi bigari, bikabigira ibiryo byingenzi kubihingwa bitandukanye, ibyatsi, nubusitani.
2,4-D yatangijwe bwa mbere mu myaka ya za 1940 kandi kuva icyo gihe yabaye imwe mu miti ikoreshwa cyane ku isi. Imikorere yacyo ifitanye isano nubushobozi bwayo bwo kwigana imisemburo y’ibimera karemano, ishobora gutera imikurire idahwitse y’ibyatsi bibi kandi amaherezo bikabaviramo gupfa. Ihitamo rifasha abahinzi kubungabunga umusaruro wibihingwa no gucunga neza ibyatsi bibi.
Kwinjiza 2,4-D mubikorwa byubuhinzi bihindura cyane kurwanya kurwanya nyakatsi, guha abahinzi igikoresho cyizewe cyo kongera umusaruro no kugabanya irushanwa ryumutungo. Ariko, gukoresha iyi miti yica ibyatsi ntabwo ari impaka. Kwita ku ngaruka ku bidukikije, ingaruka z’ubuzima, no guteza imbere ubwoko bw’ibyatsi byihanganira ibyatsi byateye ubushakashatsi no gusuzuma buri gihe.
Mu myaka yashize, inganda z’ubuhinzi zakoze ubushakashatsi ku ngamba zuzuye zo kurwanya nyakatsi zihuza ikoreshwa rya 2,4-D n’ubundi buryo bwo kugenzura kugabanya izo mpungenge. Ubu buryo bugamije kugabanya gushingira ku miti yica imiti mu gihe cyo kurwanya nyakatsi.
Muri make, 149-74-6 cyangwa 2,4-dichlorobenzoic aside ni imiti yica ibyatsi mubuhinzi bugezweho. Ishyirwa mu bikorwa ryagize ingaruka zikomeye ku bikorwa byo kurwanya nyakatsi, nubwo byanazamuye ibibazo by'ingenzi bijyanye no kuramba n'umutekano. Mugihe ubushakashatsi bukomeje, 2,4-D irashobora gushyiramo uburinganire hagati yo kurwanya nyakatsi no gucunga ibidukikije mugihe kizaza.