ʻIke laulā

ʻO DEET (diethylmethylbenzamide Pelekane), i hoʻopōkole ʻia ʻo DEET, ʻo ka inoa kemika ʻo diethyltoluamide, he mea hoʻolei pepeke ākea. Loaʻa iā ia ka hopena hoʻolei i nā ʻano pepeke nahu like ʻole ma nā wahi like ʻole a hiki ke pale aku i nā pepeke ʻeha. Nā nalo, nā ʻuʻuku liʻiliʻi, nā nalo ʻeleʻele, nā nalo chiggers, nā nalo dia, nā ʻuku, nā nalo lio, nā makika, nā nalo one, nā nalo, nā nalo paʻa a me nā ʻuku.

Ua hoʻomohala ʻia a ua patent ʻia ʻo DEET e ka US Department of Agriculture i ka wā o ke Kaua Honua II. Ua koho ʻia ka huahana he huahana pale namu no ka hoʻohana ʻana e ka pūʻali koa US i ka makahiki 1946. Ua hoʻopaʻa inoa ʻia me ka US Environmental Protection Agency ma ke ʻano he mea pale pepeke i ka makahiki 1957 a hoʻomaka ʻia e hoʻohana no ka hoʻohana kīwila. Ua hoʻohana mua ʻia ia ma ke ʻano he mea pepehi pepeke ma nā mahiʻai. Ma hope mai, ua noi ke aupuni US no kona hoʻohana ʻana i ka wā o nā kaua, ʻoi aku hoʻi ma Vietnam a me Asia Hikina Hema. Wahi a nā helu helu a ka US Environmental Protection Agency, i kēlā me kēia makahiki Chemicalbook Ma kahi o 40% o nā ʻAmelika e hoʻohana ana i ka mea pale pepeke e loaʻa ana ka DEET, kahi i hoʻohana ʻia e kahi 200 miliona poʻe ma ka honua holoʻokoʻa. I nā makahiki he 40 i hala iho nei, ua hōʻoia nā haʻawina e nā ʻoihana noiʻi he 20,000 ʻoi aku ka palekana a me ka maikaʻi loa o ka pale pepeke ma ka mākeke. Mea pale spectrum ākea. Paipai pū ka World Health Organization i ka hoʻohana ʻana i nā huahana pale e loaʻa ana ka DEET e pale aku i nā pepeke i lawe ʻia e nā vector. Hoʻohui pinepine ʻia me nā pesticides ʻē aʻe, akā hoʻonui ʻia kona ʻawaʻawa ke hui pū ʻia me nā pesticides carbamate.

Nā Waiwai DEET

CAS Helu 134-62-3

ʻO ke ʻano molekole C12H17NO

Kaumaha molekole 191.27

EINECS Helu 205-149-7

Kiko heheʻe -45°C

Ka paila ʻana he 111°C1mmHg

Ka nui o ka paʻa 0.998g/mL ma 20°C (mālamalama ʻia)

Ka nui o ka mahu 6.7 (Chemicalbookvsair)

Kaomi mahu <0.01mmHg (25°C)

ʻIke kuhikuhi refractive n20/D1.523 (lit.)

Wahi lapalapa> 230°F

ʻIke Hoʻokaʻaʻike

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