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Guaiacol (CAS#90-05-1)

Ngwongwo kemịkalụ:

Usoro ihe omimi C7H8O2
Molar Mass 124.14
Njupụta 1.129 g/mL na 25 Celsius C (ọkụ)
Ebe Na-agbaze 26-29 Celsius C (ọkụ)
Ebe Boling 205 Celsius C (ọkụ ọkụ)
Ebe mgbari 180°F
Nọmba JECFA 713
Mmiri Solubility 17 g/L (15ºC)
Solubility Na-agbaze ntakịrị na mmiri na benzene. Soluble na glycerin. A na-ejikọta ya na ethanol, ether, chloroform, mmanụ, glacial acetic acid.
Uzuoku nrịbama 0.11 mm Hg (25 Celsius C)
Uzuoku Njupụta 4.27 (na ikuku)
Ọdịdị Mmiri mmiri
Agba Kpochapụ agba edo edo na-enweghị agba
Merck 14,4553
BRN 508112
pKa 9.98 (na 25 ℃)
PH 5.4 (10g/l, H2O, 20℃)
Ọnọdụ Nchekwa 2-8 Celsius C
Nkwụsi ike Kwụsie ike, mana ikuku na ọkụ nwere mmetụta. Na-agbanyụ ọkụ. Ekwekọrịtaghị na ndị ọrụ oxidizing siri ike.
Mmetụta Mmetụta ikuku
Ntụgharị uche n20/D 1.543 (ọkụ)
MDL MFCD00002185
Njirimara anụ ahụ na kemịkalụ kristal na-acha ọcha ma ọ bụ na-acha odo odo ma ọ bụ mmiri mmiri na-acha odo odo na-acha odo odo. Enwere isi ísì pụrụ iche.
Jiri N'ihi na njikọ nke esiji, na-eji dị ka analytical reagents

Nkọwa ngwaahịa

Mkpado ngwaahịa

Koodu ihe egwu R22 - na-emerụ ma ọ bụrụ na iloro ya
R36 / 38 - na-akpasu anya na akpụkpọ ahụ.
Nkọwapụta nchekwa 26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
NJ UN 2810
WGK Germany 1
RTECS SL7525000
TSCA Ee
Koodu HS 29095010
Ihe edeturu egwu Na-egbu egbu / na-ewe iwe
Klas Hazard 6.1 (b)
Otu nkwakọ ngwaahịa II
Nsi LD50 n'ọnụ na oke: 725 mg / kg (Taylor)

 

Okwu mmalite

Guaiacol bụ ngwakọta organic. Ihe na-esonụ bụ mmalite nke akụrụngwa, ojiji, ụzọ nkwadebe na ozi nchekwa nke guaiacol luff:

 

Ogo:

- Ọdịdị: Guaiac bụ mmiri na-ekpo ọkụ na-esi ísì ụtọ.

- Solubility: Soluble n'ọtụtụ ihe mgbaze organic, dị ka ethanol na ether.

 

Jiri:

- Ọgwụ nje: A na-eji Guaiacol eme ihe mgbe ụfọdụ dị ka ihe eji eme ihe na pesticides.

 

Usoro:

Enwere ike iwepụta Guaiacol site na osisi guaiac (osisi) ma ọ bụ melite ya site na methylation nke cresol na catechol. Ụzọ nchịkọta gụnyere mmeghachi omume nke p-cresol na chloromethane catalyzed site alkali ma ọ bụ p-cresol na formic acid n'okpuru acid catalysis na na.

 

Ozi nchekwa:

- Guaiacol vapor na-akpasu iwe ma nwee ike inwe mmetụta na-akpasu iwe na anya, akpụkpọ ahụ, na usoro iku ume. Yiri akwa anya nchebe, uwe aka na ihe mkpuchi ma ọ bụrụ na ọ dị mkpa.

- Ekwesịrị ka edobe ya pụọ ​​​​na ọkụ na oke okpomọkụ, na-echekwa ya n'ime akpa ikuku ka ọ ghara ịkpakọrịta na oxidants.

- Mgbe ị na-eji guaiacol na gburugburu ikuku na-ekpo ọkụ ma zere iku ume ya ruo ogologo oge.

- Jikwaa ogige ahụ n'ụzọ ziri ezi dịka usoro ọrụ dị mkpa na ntuziaka njikwa nchekwa siri dị. N'ihe gbasara kọntaktị na akpụkpọ ahụ ma ọ bụ ojiji, kpochaa ozugbo na ọtụtụ mmiri ma chọọ enyemaka ahụike.


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