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4-Bromocrotonic Acid (CAS # 13991-36-1)

Waiwai Kemika:

ʻĀpana Molekala C4H5BrO2
Molar Mass 164.99
ʻO ka mānoanoa 1.718
Lae hehee 74 °C
Lae Boling 288 ℃
Lae Flash 128 ℃
Ka hoʻoheheʻe Chloroform (Sparingly), Methanol (Liʻiliʻi)
Puʻupuʻu mahu 0.000626mmHg ma 25°C
Ka nana aku Paʻa
kala kala Mele Melemele a Pale Beige
pKa 4.13±0.10(Wanamua)
Kūlana Waihona Ka lewa ʻole, 2-8°C

Huahana Huahana

Huahana Huahana

Pilikia a palekana

Nā Code Risk 34 - Ke kumu o ke kuni
Ka wehewehe palekana 36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
UN ID 3261
HS Code 29161900
Papa Hazard 8
Hui Pūʻulu III

4-Bromocrotonic Acid (CAS # 13991-36-1) hoʻolauna

ʻO ka 4-bromocoumaric acid he mea hoʻohuihui. Eia kahi hoʻolauna pōkole i kāna mau waiwai, hoʻohana, hana hana, a me ka ʻike palekana:

ʻano:
-Ke ʻano: 4-bromocoumaric acid he keʻokeʻo a ʻeleʻele melemele crystalline paʻa.
-Solubility: Hiki iā ia ke hoʻoheheʻe i nā solvents e like me ka wai, ethanol, a me ka ether.
-Stability: Paʻa paʻa i ka mahana lumi, akā hiki ke decompose i ka wā i wela ai.

Ke kumu:
-Ke noiʻi kemika: Hoʻohana ʻia ʻo ia ma ke ʻano he catalyst no nā hopena synthesis organik.
-Ka mahiʻai: 4-bromocoumaric acid kekahi mau noi i nā mea hoʻoponopono ulu.

ʻano hana hana:
ʻO ke ala maʻamau ka loaʻa ʻana ma ka hoʻopili ʻana i ka waika crotonic me ka ferrous bromide. Pono e hoʻokō ʻia ka hopena i loko o kahi solvent kūpono a ma kahi mahana kūpono.

ʻIke palekana:
-4-bromocoumaric acid he mea kemika a pono e hoʻohana me ka akahele.
-I ka wā o ka hana, pono e ʻaʻahu ʻia nā lako pale pilikino e like me nā mīkina lima laboratory, nā maka aniani, a me nā ʻaʻahu hale hana.
-E hōʻalo i ka hoʻopili pololei ʻana me ka ʻili, nā maka, a me ka ʻōpū hanu.
-I ka mālama ʻana, pono e mālama ʻia ka waikawa 4-bromocoumaric i loko o kahi pahu i hoʻopaʻa ʻia a waiho ʻia ma kahi maloʻo maloʻo, kahi mamao mai nā kumu ahi a me nā mea hiki ke ahi.


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