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mankhwala

4-Dimethyl-5-Acetyl Thiazole (CAS#38205-60-6)

Chemical Property:

Molecular Formula C7H9NOS
Molar Misa 155.22
Kuchulukana 1.15 g/mL pa 25 °C (kuyatsa)
Boling Point 228-230 °C (kuyatsa)
Pophulikira 220 ° F
Nambala ya JECFA 1055
Kuthamanga kwa Vapor 0.0712mmHg pa 25°C
Maonekedwe madzi oyera
Specific Gravity 1.15
Mtundu Wachikasu wopepuka mpaka Brown
Mtengo wa BRN 120560
pKa 1.97±0.10 (Zonenedweratu)
Mkhalidwe Wosungira 2-8 ° C
Refractive Index n20/D 1.543(lit.)
Gwiritsani ntchito Amagwiritsidwa ntchito ngati fungo lapakati

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
R43 - Itha kuyambitsa chidwi pakukhudzana ndi khungu
R22 - Zowopsa ngati zitamezedwa
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S37/39 - Valani magolovesi oyenera komanso chitetezo chamaso / kumaso
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
WGK Germany 3
HS kodi 29349990

 

Mawu Oyamba

2,4-Dimethyl-5-acetylthiazole ndi organic pawiri. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha gululi:

 

Ubwino:

- Maonekedwe: 2,4-Dimethyl-5-acetylthiazole ndi kristalo wopanda mtundu wachikasu kapena ufa wolimba.

- Kusungunuka: Imasungunuka mu zosungunulira zambiri monga ethanol, etha ndi acetone, komanso kusungunuka pang'ono m'madzi.

 

Gwiritsani ntchito:

- Mankhwala ophera tizirombo: 2,4-dimethyl-5-acetylthiazole ndi mankhwala ophera tizirombo osiyanasiyana omwe amagwiritsidwa ntchito pothana ndi tizirombo monga leaf roller moth ndi cabbage worm.

 

Njira:

- 2,4-Dimethyl-5-acetylthiazole nthawi zambiri imakonzedwa pochita 2,4-dimethylthiazole ndi acylating agent monga acetyl chloride. Zimene ikuchitika mu zosungunulira yoyenera, usavutike mtima ndi kusonkhezera kwa nthawi, ndiyeno kuyeretsedwa ndi crystallization kapena suction kusefera.

 

Zambiri Zachitetezo:

- Valani zida zodzitetezera zoyenera monga magolovu a labu ndi magalasi odzitchinjiriza panthawi yamakampani.

- Pewani kukhudza khungu ndi kupuma fumbi, utsi, kapena mpweya wochokera pagulu.

- Mukamasunga, sungani m'chidebe chotchinga mpweya, kutali ndi moto ndi ma oxidants.

- Mukamagwiritsa ntchito, ndikofunikira kutsatira njira zoyendetsera chitetezo ndikutengera njira zoyenera zothandizira nthawi yomweyo pangozi. Ngati mwakoka mpweya mwangozi kapena mwangozi, pitani kuchipatala mwamsanga.


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