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mankhwala

6-Methyl coumarin (CAS#92-48-8)

Chemical Property:

Molecular Formula C10H8O2
Molar Misa 160.17
Kuchulukana 1.0924 (kuyerekeza movutikira)
Melting Point 73-76 °C (kuyatsa)
Boling Point 303 °C/725 mmHg (kuyatsa)
Pophulikira 303°C/725mm
Nambala ya JECFA 1172
Kusungunuka Amasungunuka mu ethanol, ether ndi benzene
Maonekedwe White crystalline ufa
Mtundu Zoyera mpaka pafupifupi zoyera
Mtengo wa BRN 4222
Mkhalidwe Wosungira Osindikizidwa muuma, Kutentha Kwapachipinda
Refractive Index 1.5300 (chiyerekezo)
MDL Mtengo wa MFCD00006875
Zakuthupi ndi Zamankhwala White crystalline olimba. Ili ndi kokonati ngati yokoma. Malo otentha 303 ℃(99.66kPa), malo osungunuka 73~76 ℃, flash point 67.2 ℃. Amasungunuka mu benzene, ethanol yotentha ndi mafuta osasunthika, osasungunuka m'madzi otentha.
Gwiritsani ntchito Amagwiritsidwa ntchito ngati zokometsera

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xn - Zowopsa
Zizindikiro Zowopsa R22 - Zowopsa ngati zitamezedwa
R42/43 - Itha kuyambitsa chidwi pokoka mpweya komanso kukhudzana ndi khungu.
Kufotokozera Zachitetezo S22 - Osapumira fumbi.
S36/37 - Valani zovala zoyenera zodzitchinjiriza ndi magolovesi.
S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.)
WGK Germany 3
Mtengo wa RTECS GN7792000
TSCA Inde
HS kodi 29321900
Poizoni Mtengo wapakamwa wa LD50 mu makoswe udanenedwa kuti ndi 1.68 g / kg (1.43-1.93 g / kg) (Moreno, 1973). The pachimake dermal LD50 mtengo mu akalulu kuposa 5 g/kg (Moreno, 1973).

 

Mawu Oyamba

6-Methylcoumarin ndi organic pawiri. Ndi kristalo wopanda mtundu wolimba wokhala ndi kukoma konunkhira kwa zipatso. Zotsatirazi ndikuyambitsa zina mwazinthu, ntchito, njira zokonzekera ndi chidziwitso chachitetezo cha 6-methylcoumarin:

 

Ubwino:

- Mawonekedwe: Makristali opanda mtundu olimba

- Kusungirako: Ndikoyenera kusungidwa pamalo ozizira, owuma, kutali ndi dzuwa komanso kutentha kwambiri.

 

Gwiritsani ntchito:

 

Njira:

Pali njira zingapo zokonzekera 6-methylcoumarin, ndipo iyi ndi imodzi mwa njira zodziwika bwino zopangira:

Coumarin imakhudzidwa ndi acetic anhydride kupanga ethyl vanillin.

Coumarin acetate imakhudzidwa ndi methanol kupanga 6-methylcoumarin pansi pa zochita za alkali.

 

Zambiri Zachitetezo:

6-Methylcoumarin nthawi zambiri imawonedwa ngati yotetezeka pakagwiritsidwe ntchito bwino

- Pewani kukhudza maso ndi khungu, ndipo muzimutsuka nthawi yomweyo ndi madzi ambiri ngati mwakhudza mosadziwa.

- Pewani kulowetsa fumbi kapena nthunzi ndi kuvala zida zodzitetezera monga masks ndi magolovesi mukamagwira ntchito.

- Osadya ndi kusunga makanda ndi ziweto zomwe zingawafike. Ngati mwamwa mowa mwangozi, pitani kuchipatala mwamsanga.

 


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