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trans-cinnamic acid (CAS#140-10-3)

Ngwongwo kemịkalụ:

Usoro ihe omimi C9H8O2
Molar Mass 148.16
Njupụta 1.248
Ebe Na-agbaze 133C (ọkụ)
Ebe Boling 300C (ọkụ)
Ebe mgbari >230°F
Mmiri Solubility 0.4 g/L (20ºC)
Solubility Soluble na ethanol, methanol, petroleum ether, chloroform, mfe soluble na benzene, ether, acetone, glacial acetic acid, carbon disulfide na mmanụ, ubé soluble na mmiri.
Uzuoku nrịbama 1.3hPa (128 Celsius)
Ọdịdị Ọcha ntụ ntụ
Nnukwu ike ndọda 0.91
Agba Ọcha ka ọ fọrọ nke nta ka ọ bụrụ ọcha
Isi Isi adịghị ike
Ogologo ikuku kacha (λ kacha) ['273nm(MeOH)(ọkụ)']
Merck 14,2299
BRN 1905952
pKa 4.44 (na 25 ℃)
PH 3-4 (0.4g/l, H2O, 20℃)
Ọnọdụ Nchekwa 2-8 Celsius C
Mmetụta Na-amịkọrọ mmiri ngwa ngwa
Ntụgharị uche 1.5049 (atụmatụ)
MDL MFCD00004369
Njirimara anụ ahụ na kemịkalụ Àgwà: ọcha monoclinic prism. Enwere isi ísì cinnamon micro.
njupụta 1.248
ebe mgbaze 135 ~ 136 ℃
esi esi 300 ℃
njupụta ikwu 1.2475
soluble na ethanol, methanol, petroleum ether, chloroform, soluble na benzene, ether, acetone, acetic acid, carbon disulfide na mmanụ, insoluble na mmiri.
Jiri Bụ nkwadebe nke esters, ngwa nri, ọgwụ akụrụngwa

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu Xi - mgbakasị ahụ
Koodu ihe egwu 36/37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ.
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S36 - Yiri uwe nchebe kwesịrị ekwesị.
S37/39 - Yiri uwe aka kwesịrị ekwesị na nchebe anya / ihu
WGK Germany 1
RTECS GD785000
TSCA Ee
Koodu HS 29163900
Nsi LD50 ọnụ na oke bekee: 2500 mg / kg LD50 dermal oke bekee> 5000 mg / kg

 

Okwu mmalite

Trans-cinnamic acid bụ ngwakọta organic. Ọ dị n'ụdị kristal ọcha ma ọ bụ ntụ ntụ kristal.

 

Trans-cinnamic acid siri ike n'ime ụlọ ma nwee ike igbari ya na mmanya, ethers na ihe mgbaze acid, yana ntakịrị soluble na mmiri. O nwere isi ísì ụtọ pụrụ iche.

 

Trans-cinnamic acid nwere ọtụtụ ojiji.

 

Enwere ike nweta usoro nkwadebe nke trans-cinnamic acid site na mmeghachi omume nke benzaldehyde na acrylic acid. Ụzọ nkwadebe nke a na-ejikarị gụnyere mmeghachi omume oxidation, mmeghachi omume acid-catalyzed na mmeghachi omume catalytic alkaline.

Dịka ọmụmaatụ, zere ịkpọtụrụ akpụkpọ ahụ na anya ozugbo iji zere iwe na mbufụt. Mgbe ị na-arụ ọrụ, a ga-eji ngwá ọrụ nchebe kwesịrị ekwesị, dị ka uwe ụlọ nyocha, enyo nchebe, wdg. Ekwesịrị ịchekwa trans-cinnamic acid nke ọma iji zere kọntaktị na isi mmalite ọkụ na oxidants iji gbochie ọkụ na ihe mberede mgbawa. Mgbe a na-eji ya, rụọ ọrụ na usoro ziri ezi yana nkọwa ọrụ iji hụ na nchekwa.


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