tsamba_banner

mankhwala

Guaiacol (CAS#90-05-1)

Chemical Property:

Molecular Formula C7H8O2
Molar Misa 124.14
Kuchulukana 1.129 g/mL pa 25 °C (kuyatsa)
Melting Point 26-29 °C (kuyatsa)
Boling Point 205 °C (kuyatsa)
Pophulikira 180 ° F
Nambala ya JECFA 713
Kusungunuka kwamadzi 17g/L (15 ºC)
Kusungunuka Kusungunuka pang'ono m'madzi ndi benzene. Kusungunuka mu glycerin. Zosakaniza ndi ethanol, ether, chloroform, mafuta, glacial acetic acid.
Kuthamanga kwa Vapor 0.11 mm Hg (25 °C)
Kuchuluka kwa Vapor 4.27 (vs mpweya)
Maonekedwe Madzi
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu
Merck 14,4553
Mtengo wa BRN 508112
pKa 9.98 (pa 25 ℃)
PH 5.4 (10g/l, H2O, 20℃)
Mkhalidwe Wosungira 2-8 ° C
Kukhazikika Khola, koma tcheru mpweya ndi kuwala. Zoyaka. Zosagwirizana ndi ma oxidizing amphamvu.
Zomverera Zosamva mpweya
Refractive Index n20/D 1.543(lit.)
MDL Mtengo wa MFCD00002185
Zakuthupi ndi Zamankhwala Makristalo oyera kapena achikasu kapena opanda utoto mpaka achikasu owoneka bwino amadzimadzi amafuta. Pali fungo lonunkhira lapadera.
Gwiritsani ntchito Pakuti synthesis wa utoto, amagwiritsidwanso ntchito monga kusanthula reagents

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R22 - Zowopsa ngati zitamezedwa
R36/38 - Zokwiyitsa maso ndi khungu.
Kufotokozera Zachitetezo 26 - Mukakumana ndi maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha upangiri wamankhwala.
Ma ID a UN 2810
WGK Germany 1
Mtengo wa RTECS Mtengo wa SL7525000
TSCA Inde
HS kodi 29095010
Zowopsa Zowopsa / Zokhumudwitsa
Kalasi Yowopsa 6.1(b)
Packing Group II
Poizoni LD50 pamlomo makoswe: 725 mg/kg (Taylor)

 

Mawu Oyamba

Guaiacol ndi organic pawiri. Zotsatirazi ndikuwulula za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha guaiacol luff:

 

Ubwino:

- Maonekedwe: Guaiac ndi madzi owonekera ndi fungo lapadera.

- Kusungunuka: Kusungunuka mu zosungunulira zambiri organic, monga ethanol ndi ether.

 

Gwiritsani ntchito:

- Mankhwala ophera tizilombo: Guaiacol nthawi zina amagwiritsidwa ntchito ngati mankhwala ophera tizilombo.

 

Njira:

Guaiacol imatha kuchotsedwa ku nkhuni za guaiac (chomera) kapena kupangidwa ndi methylation ya cresol ndi catechol. Njira zophatikizira zimaphatikizapo kuchita kwa p-cresol ndi chloromethane yopangidwa ndi alkali kapena p-cresol ndi formic acid pansi pa catalysis ya asidi ndi zina zotero.

 

Zambiri Zachitetezo:

- Mpweya wa Guaiacol umakwiyitsa ndipo ukhoza kuwononga maso, khungu, ndi kupuma. Valani zovala zoteteza maso, magolovesi ndi chigoba ngati kuli kofunikira.

- Iyenera kusungidwa kutali ndi moto ndi kutentha kwambiri, ndikusungidwa m'chidebe chopanda mpweya kuti isakhudzidwe ndi okosijeni.

- Mukamagwiritsa ntchito guaiacol pamalo olowera mpweya wabwino ndipo pewani kutulutsa nthunzi yake kwa nthawi yayitali.

- Gwirani ntchito moyenera molingana ndi njira zogwirira ntchito komanso malangizo achitetezo. Mukakhudza khungu kapena ntchito, muzimutsuka mwamsanga ndi madzi ambiri ndikupempha thandizo lachipatala.


  • Zam'mbuyo:
  • Ena:

  • Lembani uthenga wanu apa ndikutumiza kwa ife