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

Meatotino tau vailaau:

Fuafua mole C6H10O2
Molar Mass 114.14
Malosi 0.979g/mLat 25°C
Lisi Lisi 26-28°C(malamalama)
Manu'a 123-125°C30mm Hg(malamalama)
Mata'imu 226°F
Numera JECFA 1210
Ausa Malo 0.0554mmHg ile 25°C
Ausa Malosi >1 (vs ea)
Fa'aaliga pauta e fa'aputu
Lanu Pa'epa'e i Toeitiiti pa'epa'e
pKa 5.00±0.19(Vavaloa)
Tulaga Teuteu Faamauina i le mago, Temperature Room
Fa'asino Upu n20/D 1.46(malaga)
Meatotino Faaletino ma Vailaau E leai se lanu e o'o ile vai samasama. Fa'asao 123 C (4000Pa). Kesi oona, suamalie suamalie ma suamalie suamalie, sua suamalie ma fafie. O mea faanatura e maua i strawberries.
Fa'aoga Mo le sauniaina o fualaʻau, Hawthorn ma isi meaʻai tofo

Fa'amatalaga Oloa

Faailoga o oloa

Fa'ailoga Mata'utia C – A'a
Tulaga lamatia R34 – Mafua ai mu
R22 – E afaina pe a foloina
R41 – Tulaga lamatia o le faaleagaina mata
Fa'amatalaga Saogalemu S26 – Pe a pa'i i mata, fufulu vave i le tele o vai ma saili fautuaga fa'afoma'i.
S36/37/39 – Fai ofu puipui talafeagai, totigilima ma mata/mata.
S45 – I se fa'alavelave po'o ua e lagona le le lelei, saili vave fautuaga fa'afoma'i (fa'aali le igoa pe a mafai.)
UN ID UN 3261 8/PG 3
WGK Siamani 2
TSCA Ioe
HS Code 29161900
Vasega o Tulaga Lamatia 8
Fa'aputu Vaega III

 

Folasaga

2-Methyl-2-pentenic acid, e taʻua foi o le butenedic acid, o se mea faʻapipiʻi. O loʻo taua i lalo se faʻamatalaga i meatotino, faʻaoga, metotia sauniuni ma faʻamatalaga saogalemu o le 2-methyl-2-pentenoic acid:

 

Tulaga lelei:

- 2-Methyl-2-pentenoic acid o se vai e le lanu samasama e pei o fuala'au manogi.

- 2-Methyl-2-pentenoic acid e solu i le vai ma so'o so'o e pei ole ava malosi ma ethers.

- Ose fa'aputuga mautu e le fa'amumu fa'afuase'i pe pa'u i le vevela ma le mamafa masani.

 

Fa'aaogā:

- 2-Methyl-2-pentenoic acid o loʻo faʻaaogaina muamua i le sauniuniga o polymers maualuga e pei o paʻu faʻapitoa, faʻapipiʻi, ma faʻamaufaʻailoga.

- O se monomer lona lua taua e mafai ona saunia e polymerization o butenic acid copolymers.

 

Metotia:

- 2-Methyl-2-pentenoic acid e mafai ona saunia e ala i le faʻaopoopoga faʻapipiʻiina o le cyclohexene.

- O le Dimethyllithium ma le cyclohexene e faʻaalia ina ia maua ai le 2-methyl-1-cyclohexenylmethyllithium, ona faʻafefeteina lea ma faʻasalaina e maua ai le 2-methyl-2-pentenoic acid.

 

Fa'amatalaga Saogalemu:

- 2-Methyl-2-pentenoic acid ose mea faʻafefe e ono faʻafefe ai le paʻu ma mata, ma o puipuiga talafeagai e pei o le ofuina o totigilima ma mata tioata e manaʻomia aʻo faʻaaogaina.

- E le maluelue i le malamalama ma le maualuga o le vevela, ma e mafai ona tupu faʻafefeteina polymerization, o lea e tatau ona aloese mai le umi o le faʻaalia i le susulu o le la poʻo le teuina i le vevela maualuga.

- I le taimi o le tagofiaina ma le teuina, e tatau ona puipuia mai mea e mu ma mea faʻamaʻi e puipuia ai le lamatiaga o le afi poʻo le pa.

- Pe a tagofia le 2-methyl-2-pentenoic acid, e tatau ona mulimulitaʻia faʻataʻitaʻiga faʻataʻitaʻiga ma taʻiala saogalemu. I se fa'alavelave fa'afuase'i, e tatau ona vave faia ni fa'alavelave fa'afuase'i ma e tatau ona sailia vave fesoasoani fa'apitoa fa'afoma'i.


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