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2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) Chithunzi Chowonetsedwa
  • 2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) 1

2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0)

Chemical Property:

Molecular Formula Chithunzi cha C9H14N2
Molar Misa 150.22
Kuchulukana 0.949 g/mL pa 25 °C (kuyatsa)
Boling Point 95 °C (20 mmHg)
Pophulikira 176°F
Nambala ya JECFA 777
Kusungunuka kwamadzi ZOsungunuka pang'ono
Kusungunuka Chloroform, Methanol
Kuthamanga kwa Vapor 0.515mmHg pa 25°C
Maonekedwe mwaukhondo
Specific Gravity 0.950.949
Mtundu Chotsani Colorless
pKa 2?+-.0.10 (Zonenedweratu)
Mkhalidwe Wosungira 2-8 ° C
Refractive Index n20/D 1.498(lit.)
Zakuthupi ndi Zamankhwala Zamadzimadzi zachikasu zowala, khofi ndi fungo la zipatso. Kusungunuka m'madzi koma turbid, sungunuka mu mafuta ndi organic solvents, miscible mu Mowa firiji. Malo otentha 203 °c. Zinthu zachilengedwe zimapezeka mu khofi, hazelnuts, zinthu za mbatata, etc.
Gwiritsani ntchito Kwa khofi, nyama, maswiti, etc

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xi - Zosangalatsa
Zizindikiro Zowopsa 36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
Ma ID a UN NA 1993 / PGIII
WGK Germany 3
TSCA Inde
HS kodi 29339900
Kalasi Yowopsa 3
Packing Group III

 

Mawu Oyamba

2,3-Diethyl-5-methylpyrazine ndi mankhwala achilengedwe, omwe amadziwikanso kuti DEET (N,N-diethyl-3-methylphenylethylamine).

 

Zotsatirazi ndi zina mwazinthu za 2,3-diethyl-5-methylpyrazine:

 

1. Maonekedwe: DEET ndi madzi achikasu opepuka opanda mtundu.

2. Fungo: Limakhala ndi fungo lonunkhira bwino.

3. Kusungunuka: DEET imasungunuka mu mowa, ethers ndi zosungunulira zambiri za organic, koma imakhala ndi kusungunuka kochepa m'madzi.

 

Kugwiritsiridwa ntchito kwakukulu kwa 2,3-diethyl-5-methylpyrazine kumakhala ngati mankhwala oletsa tizilombo ndi tizilombo toyambitsa matenda. Ndiwothandiza polimbana ndi kulumidwa ndi tizilombo tosiyanasiyana monga udzudzu, nkhupakupa, ntchentche, ndi zina zotero. DEET imagwiritsidwa ntchito popanga mankhwala monga tizilombo toyambitsa matenda, tizilombo toyambitsa matenda, tizilombo toyambitsa matenda komanso tizilombo toyambitsa matenda.

 

Njira kukonzekera 2,3-diethyl-5-methylpyrazine kawirikawiri ikuchitika ndi chothandizira Kuwonjezera anachita benzylamine ndi chloroacetic acid, pamaso pa zamchere, kupanga N-benzyl-N-methylacetamide, ndiyeno mwa madzi m'thupi anachita kupeza. DEET. Kukonzekera kwachindunji kungasinthidwe malinga ndi momwe zinthu zilili komanso ma reagents.

 

Chidziwitso cha Chitetezo: 2,3-Diethyl-5-methylpyrazine imatengedwa kuti ndi yotetezeka kwambiri pakagwiritsidwe ntchito. Chenjezo likufunika mukamagwiritsa ntchito anthu ena, monga ana, amayi apakati ndi oyamwitsa, komanso anthu omwe ali ndi vuto la DEET. Kuwonetsedwa kwanthawi yayitali kwa DEET kumatha kuyambitsa zovuta monga kukwiya kwapakhungu komanso kuyabwa m'maso, motero sambani m'manja ndi malo omwe ali pakhungu musanagwiritse ntchito. Ngati kusapeza kulikonse kapena zovuta zichitika, siyani kugwiritsa ntchito nthawi yomweyo ndipo funsani dokotala.

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