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2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) Umfanekiso okhoyo
  • 2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) 1

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

Ipropati yeMichiza:

Ifomula yeemolekyuli C9H14N2
IMisa yeMolar 150.22
Ukuxinana 0.949 g/mL ku-25 °C (lit.)
Indawo yeBoling 95 °C (20 mmHg)
Indawo yokuflasha 176°F
Inombolo yeJECFA 777
Ukunyibilika kwamanzi IYANYIBISA KAKHULU
Ukunyibilika I-Chloroform, iMethanol
Uxinzelelo loMphunga 0.515mmHg ku-25°C
Imbonakalo icocekile
Ubunzima obuthile 0.950.949
Umbala Ecacileyo engenaMbala
pKa 2?+-.0.10(Kuxelwe kwangaphambili)
Imeko yoGcino 2-8°C
Refractive Index n20/D 1.498(lit.)
IiPropati zoMzimba kunye nezeMichiza Ulwelo olungenambala ukuya ekukhanyeni olutyheli, ikofu kunye nevumba leziqhamo. Inyibilika emanzini kodwa i-turbid, i-soluble kwi-oyile kunye nezinyibilikisi eziphilayo, ezixutywayo kwi-ethanol kwiqondo lokushisa. Indawo yokubila yi-203 °c. Iimveliso zendalo zifumaneka kwikhofi, i-hazelnuts, iimveliso zetapile, njl.
Sebenzisa Kuba ikofu, inyama, iilekese, njl

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xi – Irritant
Iikhowudi zoMngcipheko 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula kunye nolusu.
Inkcazelo yoKhuseleko S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso.
Izazisi ze-UN NA 1993 / PGIII
WGK eJamani 3
I-TSCA Ewe
Ikhowudi ye-HS 29339900
IKlasi yeeNgozi 3
Iqela lokuPakisha III

 

Intshayelelo

I-2,3-Diethyl-5-methylpyrazine i-organic compound, eyaziwa ngokuba yi-DEET (N, N-diethyl-3-methylphenylethylamine).

 

Ezi zilandelayo zezinye zeempawu ze-2,3-diethyl-5-methylpyrazine:

 

1. Imbonakalo: I-DEET lulwelo olungenambala ukuya koluthubi olukhanyayo.

2. Ivumba: Ineziqholo eziqholiweyo.

3. I-Solubility: I-DEET i-soluble kwi-alcohols, i-ethers kunye ne-solvents ezininzi zezinto eziphilayo, kodwa ine-solubility ephantsi emanzini.

 

Ukusetyenziswa okuphambili kwe-2,3-diethyl-5-methylpyrazine ifana ne-repellent yezifo zezinambuzane kunye nezinambuzane. Isebenza ngokuchasene nokulunywa zizinambuzane ezahlukeneyo ezifana neengcongconi, amakhalane, kunye neempukane, njl. njl

 

Indlela yokulungiselela i-2,3-diethyl-5-methylpyrazine idla ngokuqhutywa yi-catalytic reaction reaction ye-benzylamine kunye ne-chloroacetic acid, phambi kwe-alkali, ukuvelisa i-N-benzyl-N-methylacetamide, kwaye emva koko nge-dehydration reaction ukuze ufumane. DEET. Inkqubo ethile yokulungiselela inokulungelelaniswa ngokwemiqathango ethile kunye nee-reagents zokuphendula.

 

Ulwazi loKhuseleko: I-2,3-Diethyl-5-methylpyrazine ithathwa njengento ekhuselekileyo phantsi kweemeko eziqhelekileyo zokusetyenziswa. Isilumkiso siyafuneka xa kusetyenziswa abantu abathile, njengabantwana, abafazi abakhulelweyo nabancancisayo, kunye nabantu abane-allergies kwi-DEET. Ukuvezwa ngokugqithisileyo ixesha elide kwi-DEET kunokubangela iziphumo ezibi ezifana nokwaliwa lusu kunye nokucaphuka kwamehlo, ke hlamba izandla zakho kunye neendawo eziveziweyo zolusu emva kokusetyenziswa. Ukuba kukho nakuphi na ukungahambi kakuhle okanye ukusabela okubi, yeka ukusebenzisa ngokukhawuleza kwaye udibane nodokotela.

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