Diethylmethylbenzamide yog ib qho dav-spectrum tshuaj tua kab uas tawm tsam ntau yam kab tom hauv ntau qhov chaw. Nws tuaj yeem tua cov yoov yoov, midges, yoov dub, chiggers, yoov yoov, hma, gnats, nees yoov, yoov tshaj cum, xuab zeb yoov, gnats, yoov ruaj khov thiab zuam.

Chemical Properties

Colorless rau amber kua. Nws muaj lub teeb citrus tsw. Zoo insoluble hauv dej, tab sis miscible nrog ethanol, 2-propanol, propylene glycol thiab paj rwb noob roj. Cov ntsiab lus meta-isomer ntawm cov khoom lag luam yog 85 txog 95%, d24 yog 0.996 txog 0.998, thiab viscosity ntawm 30 ° C yog 13.Chemicalbook 3 centipoise. Tus nqi ntawm qhov ncauj LD50 ntawm txiv neej nas dawb yog li 2000mg / kg; pub nas nrog pub muaj 1% DEET rau 200 hnub tsis muaj teebmeem dabtsi; Cov tshuaj tsis muaj tshuaj lom tuaj yeem ua rau khaus mucous, tab sis siv cov tshuaj tua kab mob ntawm DEET rau ntawm koj lub ntsej muag thiab ntsej muag txhua hnub Ntawm caj npab, ua rau tsuas yog khaus khaus.

Lub hom phiaj:

Raws li cov tshuaj tua kab, DEET yog cov tshuaj tua kab mob tseem ceeb hauv ntau yam khoom thiab kua tshuaj yoov tshaj cum. Nws muaj qhov tshwj xeeb los tiv thaiv yoov tshaj cum. Tag nrho peb lub isomers muaj cov tshuaj tua yoov tshaj cum, thiab cov meta-isomer yog qhov muaj zog tshaj plaws. Kev npaj: 70%, 95% kua.

Txoj kev tsim khoom:

Tau txais los ntawm cov tshuaj tiv thaiv ntawm m-toluoyl chloride thiab diethylamine. Cov khoom lag luam muaj 5% -15% isomers.

Cov ntaub ntawv tiv tauj

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