itulau_fanua

oloa

sovalericacid(CAS#503-74-2)

Meatotino tau vailaau:

Fuafua mole C5H10O2
Molar Mass 102.13
Malosi 0.925 g/mL ile 20 °C (malamalama)
Lisi Lisi -29 °C (malamalama)
Manu'a 175-177 °C (malamalama)
Mata'imu 159°F
Numera JECFA 259
Suavai Solubility 25 g/L (20 ºC)
Solubility Solu i le 24 vaega o le vai, solu i le ethanol; eteru ma chloroform.
Ausa Malo 0.38 mm Hg (20 °C)
Fa'aaliga Suavai manino
Gravity Fa'apitoa 0.928 (20/20 ℃)
Lanu E manino e leai se lanu i sina samasama
Merck 14,5231
BRN 1098522
pKa 4.77(i le 25℃)
PH 3.92(1 mM solution);3.4(10 mM solution);2.89(100 mM solution);
Tulaga Teuteu Teu i lalo ole +30°C.
Tapulaa Pa 1.5-6.8%(V)
Fa'asino Upu n20/D 1.403(mu.)
MDL MFCD00002726
Meatotino Faaletino ma Vailaau Uiga: vai manino le lanu ma le manogi le lelei.liusuavai -29.3 ℃

mea vevela 176.7 ℃

va'aiga va'aiga 0.9286

fa'asino ole su'esu'e 1.4033

BR> soluble: solu i le vai. Fa'afefiloi ma le ethanol ma le eter.

Fa'aoga Mo le sauniuniga o mea manogi

Fa'amatalaga Oloa

Faailoga o oloa

Tulaga lamatia R34 – Mafua ai mu
R24 – Oona pe a fa'afeso'ota'i ma pa'u
R22 – E afaina pe a foloina
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.)
S38 – I le tulaga e le lava le ea, fa'aaoga mea faigaluega fa'alenava.
S28A -
UN ID UN 3265 8/PG 2
WGK Siamani 1
RTECS NY1400000
FLUKA BRAND F CODES 13
TSCA Ioe
HS Code 2915 60 90
Vasega o Tulaga Lamatia 6.1
Fa'aputu Vaega III
Oona LD50 iv i isumu: 1120±30 mg/kg (Po'o, Wretlind)

 

Folasaga

Isovaleric acid. O lo'o ta'ua i lalo se folasaga i meatotino, fa'aoga, metotia o sauniuniga ma fa'amatalaga saogalemu ole isovaleric acid:

 

Tulaga lelei:

Foliga: Suavai e le lanu pe samasama ma se manogi manogi e pei o le acetic acid.

Malosi: 0.94g/cm³

Solubility: soluble i le vai, e mafai foʻi ona faʻafefiloi ma le ethanol, eter ma isi solvents organic.

 

Fa'aaogā:

Synthesis: Isovaleric acid o se vailaʻau faʻasolosolo taua, lea e masani ona faʻaaogaina i le tele o alamanuia faʻapitoa e pei o le organic synthesis, pharmaceuticals, coatings, paʻu ma palasitika.

 

Metotia:

O le auala sauniuni ole acid isovaleric e aofia ai auala nei:

E ala i le faʻamaʻiina o le faʻamaʻi o le n-butanol, o le faʻamaʻiina o le n-butanol i le isovaleric acid e faʻaaogaina e faʻaaoga ai se faʻamaʻi faʻamaʻi ma le okesene.

O le magnesium butyrate e faia i le tali atu o le magnesium butyl bromide ma le carbon dioxide, ona liua lea i le isovaleric acid e ala i le tali atu i le carbon monoxide.

 

Fa'amatalaga Saogalemu:

O le Isovaleric acid o se mea pala, aloese mai le faʻafesoʻotaʻi ma le paʻu ma mata, ma faʻalogo lelei i le faʻaogaina o totigilima puipui, tioata saogalemu ma lavalava puipui.

Pe a faʻaaogaina le isovaleric acid, e tatau ona aloese mai le faʻaogaina o ana ausa ma e tatau ona faia le taʻaloga i totonu o se siosiomaga lelei.

E maualalo le mea e fa'amumu ai, aloese mai le fa'afeso'ota'i ma le puna afi, ma teu ese mai afi matala ma puna vevela.

I le tulaga ua fa'afuase'i ona a'afia i le isovaleric acid, fufulu vave i le tele o vai ma saili togafitiga faafoma'i.


  • Muamua:
  • Sosoo ai:

  • Tusi lau savali iinei ma lafo mai ia i matou