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2-Methyl-2-pentenoic acid(CAS#3142-72-1)

Waiwai Kemika:

ʻĀpana Molekala C6H10O2
Molar Mass 114.14
ʻO ka mānoanoa 0.979g/mLat 25°C
Lae hehee 26-28°C(māmā)
Lae Boling 123-125°C30mm Hg(māmā)
Lae Flash 226°F
Helu JECFA 1210
Puʻupuʻu mahu 0.0554mmHg ma 25°C
Ka māhu māhu >1 (vs ea)
Ka nana aku pauda i puʻupuʻu
kalakala Keokeo a Aneane keokeo
pKa 5.00±0.19(Wanamua)
Kūlana Waihona Hoʻopaʻa ʻia i loko o kahi maloʻo, lumi wela
Hōʻike Hōʻike n20/D 1.46(māmā)
Na Waiwai Kino a Kimia ʻAʻole waihoʻoluʻu i ka wai melemele māmā. Ka helu paila 123 C (4000Pa). ʻO ke kinoea ʻawaʻawa, ka ʻono hua ʻono a me ka ʻawaʻawa, ka syrup a me ka ʻono lāʻau. Loaʻa nā huahana kūlohelohe i nā strawberries.
Hoʻohana No ka hoʻomākaukau ʻana i ka strawberry, Hawthorn a me nā mea ʻai ʻē aʻe

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino C – ʻAiʻino
Nā Code Risk R34 - Ke kumu o ke kuni
R22 – Poino ke aleia
R41 – Ka pilikia o ka poino nui i na maka
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S45 – Inā loaʻa ka pōʻino a i ʻole ka maikaʻi ʻole, e ʻimi koke i ka ʻōlelo aʻo kino (e hōʻike i ka lepili inā hiki.)
UN ID UN 3261 8/PG 3
WGK Kelemānia 2
TSCA ʻAe
HS Code 29161900
Papa Hazard 8
Hui Pūʻulu III

 

Hoʻolauna

ʻO 2-Methyl-2-pentenic acid, i ʻike ʻia hoʻi he ʻakika butenedic, he mea hoʻohuihui. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o ka 2-methyl-2-pentenoic acid:

 

ʻAno maikaʻi:

- 2-Methyl-2-pentenoic acid he wai waihoʻoluʻu ʻole a ʻeleʻele melemele me ka ʻala hua.

- Hiki ke hoʻoheheʻe ʻia ka 2-Methyl-2-pentenoic acid i ka wai a me nā mea hoʻoheheʻe kūlohelohe e like me nā ʻona a me nā eter.

- He pūhui paʻa ʻaʻole ia e hoʻā wale a pahū iā ia iho i nā mahana a me nā kaomi maʻamau.

 

E hoʻohana:

- Hoʻohana nui ʻia ka 2-Methyl-2-pentenoic acid i ka hoʻomākaukau ʻana i nā polymers hana kiʻekiʻe e like me nā uhi kūikawā, nā adhesives, a me nā mea hoʻopaʻa.

- He monomer lua koʻikoʻi ia i hiki ke hoʻomākaukau ʻia e ka polymerization o ka butenic acid copolymers.

 

Hanana:

- Hiki ke hoʻomākaukau ʻia ka ʻakika 2-Methyl-2-pentenoic e ka hoʻohui ʻana i ka waikawa-catalyzed o cyclohexene.

- Hoʻopili ʻia ka Dimethyllithium a me ka cyclohexene e loaʻa ai ka 2-methyl-1-cyclohexenylmethyllithium, a laila hydrolyzed a acidified e loaʻa ai ka 2-methyl-2-pentenoic acid.

 

ʻIke palekana:

- ʻO ka 2-Methyl-2-pentenoic acid he mea hoʻonāukiuki i hiki ke hoʻonāukiuki i ka ʻili a me nā maka, a pono e mālama pono e like me ke komo ʻana i nā mīkina lima pale a me nā maka aniani i ka wā e hoʻohana ai.

- ʻAʻole paʻa i ka māmā a me nā wela kiʻekiʻe, a hiki i nā hopena polymerization, no laila e pale ʻia ka lōʻihi o ka ʻike ʻana i ka lā a i ʻole ka waiho ʻana i nā wela kiʻekiʻe.

- I ka wā o ka mālama ʻana a me ka mālama ʻana, pono e mālama ʻia mai nā mea hiki ke ahi a me nā mea hoʻoheheʻe i mea e pale ai i ke ahi a pahū paha.

- I ka lawelawe ʻana i ka 2-methyl-2-pentenoic acid, pono e hahai ʻia nā protocol hoʻokolohua kūpono a me nā alakaʻi hana palekana. Inā loaʻa kahi pōʻino, pono e lawe koke ʻia nā hana pilikia kūpono a pono e ʻimi koke i ke kōkua lapaʻau ʻoihana.


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