Asiidh Levulinic/CAS:123-76-2
Sharaxaad Gaaban:
Magaca Badeecada: Levulinic acid
CAS: 123-76-2
Nooca: ZA-Y
MF:C5H8O3
MW: 116.12
QAAB-DHISMEEDKA:
Sharaxaad:
Levulinic acid waxay leedahay dhadhan whiskey ah oo macaan. Waxaa lagu samayn karaa ficilka HCL ee ku badan ama ka yar sucrose, glucose, ama fructose; sidaas darteed, waxaa lagu soo waramayaa inay ku jirto karamel.
Faahfaahinta:
| Shay | Faahfaahinta |
| Barta dhalaalaysa | 30-33 °C (iftiin) |
| Barta karkarinta | 245-246 °C (iftiin) |
| Cufnaanta | 1.134 g/mL heerkul ah 25 °C (iftiin) |
| Cadaadiska uumiga | 1 mm Hg (102 °C) |
| Tusmada Refractive | n20/D 1.439 (iftiin) |
| Heerkulka kaydinta. | Ku kaydi meel ka hooseysa +30°C. |
| Milmida | 675g/l |
| Foomka | Dareere ka dib dhalaalid |
| Midab | Jaalle cad |
Isticmaalka
Levulinic acid waa badeeco biomass ah, waxyaabaha laga soo saaro, sida ethyl levulinate iyo alkyl levulinate, waxaa loo isticmaali karaa sidii walxo shidaal lagu daro.
Asiidhka levulinic waxaa loo isticmaalaa kalsiyum levulinate daawooyinka, sida esters-ka dareeraha iyo balaastikada, iyo sameynta valerolactone. Marka isticmaalkeedu sii bato, waxaa laga yaabaa in laga sameeyo qashinka cellulosic. Asiidhka Mesitonic, oo ah isku-dhafan oo ah asiidhka levulinic waxaa laga helaa iyadoo lagu daro oksaydhka mesitil oo leh KCN.
Haydarojiinta aashitada levulinic waxay soo saari kartaa kiimikooyin kale oo waxtar leh. Valeric-g-lactone, oo ah dareere wax ku ool ah oo leh isticmaal ballaaran, waxaa lagu heli karaa wax soo saar aad u sarreeya. Isku-darkaan waxaa lagu hagajin karaa 1,4-pentandiol, kaas oo marka uu fuuq-baxo soo saara 1,3-pentadine (piperylene). Piperylene waxaa loo yaqaanaa inuu polymer ka dhigo cuf caag ah sidaas darteedna waa isha caagga macmal ah (Ghorpade iyo Hanna 1997).
Levulinic acid waa hordhac u ah isku-darka waxyaabaha muhiimka ah sida γ-valerolactone, ethyl levulinate, pentanoic acid iyo 2-methyl-tetrahydrofuran. Kala-soocidda iyo esterification-ka levulinic acid waxay keenaysaa shidaal biofuel oo suurtagal ah.
Waxaa sidoo kale loo isticmaali karaa:
Diyaarinta isku-darka katalytic-ga si loo sameeyo 5-hydroxymethylfurfural iyo furfural.
Isku-darka udgoon ganacsi, fraistone.
Isku-darka pyrrolidone derivatives iyada oo loo marayo reductive amination.
Isku-darka guud ee arabinogalactan-ka mycobacterial.
Baakad
200KG/Durbaan ama sida looga baahan yahay macaamiisha.
Hayso oo kaydi
Muddada shelf-ka: 24 bilood laga bilaabo taariikhda la sameeyay ee baakadaha asalka ah ee aan la furin lagu kaydiyay meel qabow oo qalalan oo ka fog iftiinka qorraxda tooska ah, biyaha.
Bakhaar hawo leh, Qallajin heerkul hooseeya, Ka soocan oksaydhiyeyaasha, asiidhyada.
