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2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0) Aworan ti a ṣe afihan
  • 2-3-Diethyl-5-Methylpyrazine(CAS#18138-04-0 ) 1

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

Ohun-ini Kemikali:

Fọọmu Molecular C9H14N2
Molar Mass 150.22
iwuwo 0.949 g/ml ni 25°C (tan.)
Ojuami Boling 95°C (20 mmHg)
Oju filaṣi 176°F
Nọmba JECFA 777
Omi Solubility DIE SOLUBLE
Solubility Chloroform, kẹmika
Vapor Presure 0.515mmHg ni 25°C
Ifarahan afinju
Specific Walẹ 0.950.949
Àwọ̀ Ko Awọ
pKa 2?+-.0.10(Asọtẹlẹ)
Ibi ipamọ Ipo 2-8°C
Atọka Refractive n20/D 1.498(tan.)
Ti ara ati Kemikali Properties Alailowaya si ina omi ofeefee, kofi ati oorun eso. Tiotuka ninu omi ṣugbọn turbid, tiotuka ninu awọn epo ati awọn olomi Organic, miscible ni ethanol ni iwọn otutu yara. Oju otutu 203 °c. Awọn ọja adayeba wa ni kofi, hazelnuts, awọn ọja ọdunkun, ati bẹbẹ lọ.
Lo Fun kofi, ẹran, suwiti, ati bẹbẹ lọ

Alaye ọja

ọja Tags

Awọn aami ewu Xi - Irritant
Awọn koodu ewu 36/37/38 - Irritating si oju, eto atẹgun ati awọ ara.
Apejuwe Abo S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun.
S36 / 37/39 - Wọ aṣọ aabo to dara, awọn ibọwọ ati aabo oju / oju.
UN ID NA 1993 / PGIII
WGK Germany 3
TSCA Bẹẹni
HS koodu 29339900
Kíláàsì ewu 3
Iṣakojọpọ Ẹgbẹ III

 

Ọrọ Iṣaaju

2,3-Diethyl-5-methylpyrazine jẹ agbo-ara Organic, ti a tun mọ ni DEET (N, N-diethyl-3-methylphenylethylamine).

 

Awọn atẹle jẹ diẹ ninu awọn ohun-ini ti 2,3-diethyl-5-methylpyrazine:

 

1. Irisi: DEET jẹ awọ ti ko ni awọ si ina omi ofeefee.

2. Òórùn: Ni o ni kan lata, Organic olfato.

3. Solubility: DEET jẹ tiotuka ninu awọn ọti-lile, awọn ethers ati ọpọlọpọ awọn nkan ti o wa ni erupẹ, ṣugbọn o ni kekere solubility ninu omi.

 

Lilo akọkọ ti 2,3-diethyl-5-methylpyrazine jẹ bi apanirun fun kokoro ati awọn arun ti o ni kokoro. O munadoko lodi si awọn geje ti awọn kokoro oriṣiriṣi bii efon, ticks, ati eṣinṣin, ati bẹbẹ lọ. DEET ni a maa n lo ni iṣelọpọ awọn ọja gẹgẹbi awọn ohun elo kokoro, awọn iṣọn ẹfọn, awọn apanirun kokoro ati awọn sprays ti kokoro.

 

Ọna ti ngbaradi 2,3-diethyl-5-methylpyrazine nigbagbogbo ni a ṣe nipasẹ ifaseyin afikun katalitiki ti benzylamine ati chloroacetic acid, niwaju alkali, lati ṣe ipilẹṣẹ N-benzyl-N-methylacetamide, ati lẹhinna nipasẹ ifungbẹ gbigbẹ lati gba DEET. Ilana igbaradi kan pato le ṣe atunṣe ni ibamu si awọn ipo kan pato ati awọn reagents lenu.

 

Alaye Aabo: 2,3-Diethyl-5-methylpyrazine ni a gba pe ailewu labe awọn ipo gbogbogbo ti lilo. Išọra ni a nilo nigba lilo awọn olugbe kan, gẹgẹbi awọn ọmọde, aboyun ati awọn aboyun, ati awọn eniyan ti o ni nkan ti ara korira si DEET. Ifarahan ti o pọju gigun si DEET le fa awọn ipa buburu gẹgẹbi awọn nkan ti ara korira ati híhún oju, nitorina wẹ ọwọ rẹ ati awọn agbegbe awọ ti o farahan daradara lẹhin lilo. Ti eyikeyi idamu tabi awọn aati ikolu ba waye, dawọ duro lẹsẹkẹsẹ ki o kan si dokita kan.

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