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huahana

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

Waiwai Kemika:

ʻĀpana Molekala C9H8O2
Molar Mass 148.16
ʻO ka mānoanoa 1.248
Lae hehee 133 °C (māmā)
Lae Boling 300°C(māmā)
Lae Flash >230°F
Hiki i ka wai 0.4 g/L (20 ºC)
Ka hoʻoheheʻe Hiki ke hoʻoheheʻe ʻia i loko o ka ethanol, methanol, petroleum ether, chloroform, hiki ke hoʻoheheʻe ʻia i ka benzene, etera, acetone, glacial acetic acid, carbon disulfide a me nā aila, hiki ke hoʻoheheʻe iki ʻia i ka wai.
Puʻupuʻu mahu 1.3 hPa (128 °C)
Ka nana aku Pauda keʻokeʻo
Kaumaha Kūikawā 0.91
kalakala Keokeo a aneane keokeo
ʻala ʻAla ʻino
Ka lōʻihi hawewe (λmax) ['273nm(MeOH)(lit.)']
ʻO Merck 14,2299
BRN 1905952
pKa 4.44(ma 25 ℃)
PH 3-4 (0.4g/l, H2O, 20 ℃)
Kūlana Waihona 2-8°C
Pilikino Hoʻopaʻa maʻalahi i ka makū
Hōʻike Hōʻike 1.5049 (manaʻo)
MDL MFCD00004369
Na Waiwai Kino a Kimia ʻAno: prism monoclinic keʻokeʻo. Aia kahi ʻala micro cinnamon.
mānoanoa 1.248
helu hehee 135~136 ℃
wahi hoʻolapalapa 300 ℃
mānoanoa pili 1.2475
hiki ke hoʻoheheʻe ʻia i ka ethanol, methanol, petroleum ether, chloroform, hiki ke hoʻoheheʻe ʻia i loko o benzene, etera, acetone, acetic acid, carbon disulfide a me ka ʻaila, hiki ʻole ke hoʻoheheʻe ʻia i ka wai.
Hoʻohana ʻO ka hoʻomākaukauʻana i nā esters, nā meaʻala, nā lāʻau lapaʻau

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino Xi – Hoʻohaunaele
Nā Code Risk 36/37/38 – Hoʻonanea i nā maka, ʻōnaehana hanu a me ka ʻili.
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S36 – E komo i nā lole pale kūpono.
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
WGK Kelemānia 1
RTECS GD7850000
TSCA ʻAe
HS Code 29163900
Kaʻawaʻawa LD50 ma ka waha i ka Lapeti: 2500 mg/kg LD50 dermal Rabbit > 5000 mg/kg

 

Hoʻolauna

ʻO ka waikawa trans-cinnamic he mea hoʻohuihui. Aia ma ke ʻano o nā keʻokeʻo keʻokeʻo a i ʻole nā ​​pauka crystalline.

 

Paʻa ka ʻakika Trans-cinnamic ma ka lumi wela a hiki ke hoʻoheheʻe ʻia i loko o nā ʻawaʻawa, nā etera a me nā mea hoʻoheheʻe waika, a hiki ke hoʻoheheʻe ʻia i ka wai. He ʻala ʻala kūikawā kona.

 

He ʻokoʻa ka hoʻohana ʻana i ka waika trans-cinnamic.

 

Hiki ke loaʻa ke ʻano hoʻomākaukau o ka waikawa trans-cinnamic ma ka hopena o ka benzaldehyde a me ka waikawa acrylic. ʻO nā ʻano hana hoʻomākaukau maʻamau e pili ana i ka hopena oxidation, acid-catalyzed reaction a me alkaline catalytic reaction.

No ka laʻana, e pale i ka hoʻopili pololei ʻana me ka ʻili a me nā maka e pale aku i ka huhū a me ka mumū. I ka wā e hana ai, pono e hoʻohana ʻia nā mea pale kūpono, e like me nā mīkina lima laboratory, nā aniani pale, a me nā mea ʻē aʻe. I ka hoʻohana ʻana, e hana e like me ke kaʻina hana kūpono a me nā kikoʻī hana e hōʻoia i ka palekana.


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