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huahana

ʻAka Isobutyric(CAS#79-31-2)

Waiwai Kemika:

ʻĀpana Molekala C4H8O2
Molar Mass 88.11
ʻO ka mānoanoa 0.95 g/mL ma 25 °C (kukui.)
Lae hehee -47 °C (kukui.)
Lae Boling 153-154 °C (kukui)
Lae Flash 132°F
Helu JECFA 253
Hiki i ka wai 210 g/L (20 ºC)
Ka hoʻoheheʻe 618g/l
Puʻupuʻu mahu 1.5 mm Hg (20 °C)
Ka māhu māhu 3.04 (me ka lewa)
Ka nana aku Waiwai
kalakala ʻAʻole kala ʻole
ʻO Merck 14,5155
BRN 635770
pKa 4.84(ma 20 ℃)
PH 3.96(1 mM solution);3.44(10 mM solution);2.93(100 mM solution);
Kūlana Waihona E mālama ʻia ma lalo o +30 ° C.
Pale Pahū 1.6-7.3%(V)
Hōʻike Hōʻike n20/D 1.393(māmā)
Na Waiwai Kino a Kimia ʻO ka wai ʻaila kala ʻole me ka ʻala ʻala ikaika.
helu hehee -47 ℃
wahi hoʻolapalapa 154.5 ℃
pili pili 0.949
helu hoʻopaʻapaʻa 1.3930
kiko uila 76.67
Hiki ke hoʻoheheʻe ʻia me ka wai, hiki ke hoʻoheheʻe ʻia i ka ethanol, ether, etc.
Hoʻohana Hoʻohana nui ʻia i ka synthesis o nā huahana isobutyric acid ester, e like me methyl, Propyl isobutyrate, isoamyl Ester, benzyl ester, a me nā mea ʻē aʻe, hiki ke hoʻohana ʻia e like me nā mea ʻala ʻai, hoʻohana pū ʻia i ka lāʻau lapaʻau.

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino Xn – Poino
Nā Code Risk 21/22 – He pōʻino i ka pili ʻana me ka ʻili a inā ale ʻia.
Ka wehewehe palekana S23 – Mai hanu i ka mahu.
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S24/25 – Hōʻalo i ka pili ʻana me ka ʻili a me nā maka.
UN ID UN 2529 3/PG 3
WGK Kelemānia 1
RTECS NQ4375000
NUI FLUKA BRAND F 13
TSCA ʻAe
HS Code 29156000
Papa Hazard 3
Hui Pūʻulu III
Kaʻawaʻawa LD50 ma ka waha i ka Lapeti: 266 mg/kg LD50 dermal Rabbit 475 mg/kg

 

Hoʻolauna

ʻO ka waikawa isobutyric, i ʻike ʻia ʻo 2-methylpropionic acid, he mea hoʻohuihui. Eia ka wehewehe kikoʻī i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o ka isobutyric acid:

 

ʻAno maikaʻi:

Ke ʻano: ʻO ka wai kala ʻole me kahi ʻala ʻala kūikawā.

Māmā: 0.985 g/cm³.

Solubility: Hiki ke hoʻoheheʻe ʻia i ka wai a me nā mea hoʻoheheʻe organik he nui.

 

E hoʻohana:

Nā mea hoʻoheheʻe: Ma muli o kona hiki ke hoʻoheheʻe maikaʻi ʻia, hoʻohana nui ʻia ka isobutyric acid ma ke ʻano he mea hoʻoheheʻe, ʻoi aku hoʻi i nā pena, pena, a me nā mea hoʻomaʻemaʻe.

 

Hanana:

Loaʻa ke ʻano hana maʻamau o ka hoʻomākaukau ʻana i ka waika isobutyric ma o ka hoʻohemo ʻana o ka butene. Hoʻopili ʻia kēia kaʻina hana e kahi catalyst a hana ʻia i nā wela kiʻekiʻe a me nā kaomi.

 

ʻIke palekana:

ʻO ka waika isobutyric he mea hoʻomāinoino i hiki ke hoʻonāukiuki a me ka pōʻino i ka wā e hoʻopili ai me ka ʻili a me nā maka, a pono e hoʻohana ʻia nā mea kūpono i ka wā e hoʻohana ai.

Hiki i ka hoʻolaha lōʻihi ke kumu i ka maloʻo, ka pohā, a me nā hopena maʻi.

I ka mālama ʻana a me ka mālama ʻana i ka waika isobutyric, pono e mālama ʻia mai nā lapalapa ākea a me nā wela kiʻekiʻe e pale ai i nā pōʻino ahi a pahū.


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