Asidi wa Levulinic/CAS: 123-76-2
Kufotokozera Kwachidule:
Dzina la Mankhwala: Levulinic acid
CAS: 123-76-2
Mtundu:ZA-Y
MF:C5H8O3
MW:116.12
KAYAMBIDWE:
Kufotokozera:
Levulinic acid ili ndi kukoma kokoma komanso kowawa kwa whiskey. Ikhoza kupangidwa ndi ntchito ya HCL yokhazikika kwambiri pa sucrose, glucose, kapena fructose; chifukwa chake, imapezeka mu caramel.
Mafotokozedwe:
| Chinthu | Kufotokozera |
| Malo osungunuka | 30-33 °C (lit.) |
| Malo otentha | 245-246 °C (lit.) |
| Kuchulukana | 1.134 g/mL pa 25 °C (lit.) |
| Kupanikizika kwa nthunzi | 1 mm Hg (102 °C) |
| Chizindikiro Chowunikira | n20/D 1.439(lit.) |
| Kutentha kwa malo osungira. | Sungani pansi pa +30°C. |
| Kusungunuka | 675g/l |
| Fomu | Madzi Akasungunuka |
| Mtundu | Wachikasu wowonekera bwino |
Kagwiritsidwe Ntchito
Levulinic acid ndi chinthu chopangidwa kuchokera ku biomass ndipo zinthu zake, monga ethyl levulinate ndi alkyl levulinate, zingagwiritsidwe ntchito ngati zowonjezera mafuta.
Levulinic acid imagwiritsidwa ntchito popanga calcium levulinate m'mafakitale, monga ma esters mu zosungunulira ndi ma plasticizer, komanso popanga valerolactone. Pamene ntchito yake ikuchulukirachulukira, mwina imapangidwa kuchokera ku zinyalala za cellulosic. Mesitonic acid, homololog ya levulinic acid imapezeka poika mesityl oxide ndi KCN.
Kuchuluka kwa levulinic acid kungapangitse mankhwala ena othandiza. Valeric-g-lactone, yomwe ndi solvent yothandiza kwambiri yomwe imagwiritsidwa ntchito kwambiri, ingapezeke mu zokolola zambiri. Chosakaniza ichi chikhoza kusinthidwa kukhala 1,4-pentandiol, yomwe ikatha madzi imatulutsa 1,3-pentadine (piperylene). Piperylene imadziwika kuti imapanga polymer kukhala rabara ndipo motero ndi gwero la rabara yopangidwa (Ghorpade ndi Hanna 1997).
Levulinic acid ndi njira yoyambira kupanga zinthu zothandiza monga γ-valerolactone, ethyl levulinate, pentanoic acid ndi 2-methyl-tetrahydrofuran. Kutulutsa ndi kuyika ester kwa levulinic acid kumabweretsa mafuta omwe angakhalepo.
Ingagwiritsidwenso ntchito mu:
Kukonzekera kwa catalytic composite kuti ipange 5-hydroxymethylfurfural ndi furfural.
Kupanga fungo lamalonda, fraistone.
Kupanga kwa zotumphukira za pyrrolidone kudzera mu reductive amination.
Kupanga konse kwa mycobacterial arabinogalactan.
Kulongedza
200KG/Drum kapena malinga ndi zomwe makasitomala amafuna.
Sungani ndi kusunga
Nthawi yosungiramo zinthu: Miyezi 24 kuyambira tsiku lopangidwa m'maphukusi oyambirira osatsegulidwa, osungidwa pamalo ozizira komanso ouma, kutali ndi dzuwa, madzi.
Nyumba yosungiramo zinthu zopumira mpweya, Youma pang'ono, Yosiyana ndi ma oxidants, ma acid.
