I-Levulinic acid/CAS:123-76-2
Incazelo emfushane:
Igama lomkhiqizo: i-Levulinic acid
I-CAS: 123-76-2
Uhlobo:ZA-Y
MF:C5H8O3
I-MW:116.12
ISAKHIWO:
Incazelo:
I-Levulinic acid inokunambitheka okuthambile, kwe-whisky. Ingakhiwa ngesenzo se-HCL egxile kakhulu noma kancane ku-sucrose, i-glucose, noma i-fructose; yingakho, kubikwa ukuthi ikhona kuma-caramel.
Imininingwane:
| Into | Imininingwane |
| Indawo yokuncibilika | 30-33 °C (ngokukhanya) |
| Indawo yokubilisa | 245-246 °C (ngokukhanya) |
| Ubuningi | 1.134 g/mL ku-25 °C (ngokukhanya) |
| Umfutho womusi | 1 mm Hg (102 °C) |
| Inkomba Yokubukeza | n20/D 1.439(lit.) |
| Izinga lokushisa lesitoreji. | Gcina ngaphansi kuka-+30°C. |
| Ukuncibilika | 675g/l |
| Ifomu | Uketshezi Ngemva Kokuncibilika |
| Umbala | Okuphuzi okucacile |
Ukusetshenziswa
I-Levulinic acid ingumkhiqizo we-biomass futhi izinto eziphuma kuyo, njenge-ethyl levulinate kanye ne-alkyl levulinate, zingasetshenziswa njengezithasiselo zikaphethiloli.
I-levulinic acid isetshenziselwa i-calcium levulinate emithini yemithi, njengama-ester kuma-solvents nama-plasticizers, kanye nokwenza i-valerolactone. Njengoba ukusetshenziswa kwayo kukhula, cishe izokwenziwa ngemfucuza ye-cellulosic. I-Mesitonic acid, i-homololog ye-levulinic acid itholakala ngokubilisa i-mesityl oxide ene-KCN.
Ukukhiqizwa kwe-hydrogen ye-levulinic acid kungakhiqiza amanye amakhemikhali awusizo. I-Valeric-g-lactone, okuyi-solvent ephumelelayo esetshenziswa kakhulu, ingatholakala ngesivuno esikhulu kakhulu. Le nhlanganisela ingase ihlanganiswe ne-hydrogen ibe yi-1,4-pentandiol, okuthi uma iphelelwa amanzi emzimbeni ikhiqize i-1,3-pentadine (i-piperylene). I-Piperylene yaziwa ngokuyi-polymer ibe yi-rubber mass ngakho-ke ingumthombo werabha yokwenziwa (Ghorpade noHanna 1997).
I-Levulinic acid iyisandulela sokwenziwa kwezinto eziwusizo ezifana ne-γ-valerolactone, i-ethyl levulinate, i-pentanoic acid kanye ne-2-methyl-tetrahydrofuran. Ukwenziwa kwe-levulinic acid kube yi-esterization kanye nokwakheka kwe-esterization kuphumela ku-biofuels ezingaba khona.
Ingasetshenziswa futhi ku:
Ukulungiswa kwe-catalytic composite ukuhlanganisa i-5-hydroxymethylfurfural kanye ne-furfural.
Ukwenziwa kwephunga lezentengiselwano, i-fraistone.
Ukwenziwa kwezinto ezisuselwa ku-pyrrolidone nge-reductive amination.
Ukuhlanganiswa okuphelele kwe-mycobacterial arabinogalactan.
Ukupakisha
200KG/Isigubhu noma ngokwezidingo zamakhasimende.
Gcina futhi ugcine
Isikhathi sokuphila: Izinyanga ezingama-24 kusukela ngosuku lokwenziwa kwento epakishweni lokuqala elingavulwanga, igcinwe endaweni epholile neyomile kude nokukhanya kwelanga okuqondile, amanzi.
Indawo yokugcina izinto enomoya, Ukomisa okuphansi kwezinga lokushisa, Ihlukaniswe nama-oxidants, ama-acid.
