DEET (lus Askiv diethylmethylbenzamide), uas nws lub npe tshuaj yog diethyltoluamide, yog cov tshuaj tua kab dav dav. Phau ntawv tshuaj muaj cov nyhuv tua kab rau ntau yam kab tom hauv ntau qhov chaw thiab tuaj yeem tua cov yoov stinging. , midges, yoov dub, chiggers, yoov mos lwj, yoov, yoov xuab zeb, yoov, yoov ruaj khov thiab kab laum.

cov khoom siv tshuaj lom neeg

Tsis muaj xim rau xim av daj. Muaj ntxhiab tsw qab ntawm txiv qaub. Yuav luag tsis yaj hauv dej, tab sis sib xyaw nrog ethanol, 2-propanol, propylene glycol thiab roj paj rwb. 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 13.3 centimeters Chemicalbook poise. Tus nqi LD50 qhov ncauj ntawm cov nas dawb txiv neej yog li 2000mg / kg; pub nas nrog pub uas muaj 1% DEET rau 200 hnub tsis muaj kev phiv; cov tshuaj undiluted tuaj yeem ua rau khaus cov ntaub so ntswg, tab sis siv cov tshuaj DEET uas tiv thaiv koj lub ntsej muag thiab lub ntsej muag txhua hnub Ntawm caj npab, tsuas yog ua rau khaus me ntsis xwb

Lub Hom Phiaj:

Ua ib yam tshuaj tua kab, DEET yog cov khoom xyaw tseem ceeb hauv ntau yam tshuaj tua yoov tshaj cum uas khov thiab kua. Nws muaj cov teebmeem tshwj xeeb hauv kev tiv thaiv yoov tshaj cum. Tag nrho peb lub isomers muaj cov teebmeem tua yoov tshaj cum, thiab meta-isomer yog qhov muaj zog tshaj plaws. Kev npaj: 70%, 95% kua.

CAS No. 134-62-3

Cov mis mos molecular C12H17NO

Qhov hnyav molecular 191.27

EINECS No. 205-149-7

Qhov kub yaj -45°C

Kub taw tes 111°C1mmHg

Qhov Ceev 0.998g/mL ntawm 20°C (lit.)

Qhov ceev ntawm cov pa 6.7 (Chemicalbookvsair)

Siab ntawm cov pa dej <0.01mmHg (25°C)

Refractive index n20/D1.523 (lit.)

Qhov kub hnyiab > 230°F

Cov Ntaub Ntawv Tiv Tauj