ʻAkika Levulinic/CAS:123-76-2
Wehewehe Pōkole:
Inoa Huahana: Levulinic acid
CAS: 123-76-2
ʻAno:ZA-Y
MF:C5H8O3
MW:116.12
ʻANO:
Wehewehena:
He ʻono whiskey ka waikawa Levulinic. Hiki ke hana ʻia ma o ka hana o ka HCL i hoʻopaʻa ʻia a emi iki paha ma ka sucrose, glucose, a i ʻole fructose; no laila, ua hōʻike ʻia kona ʻike ʻia ʻana i loko o nā caramels.
Kikoʻī:
| Mea | Nā kikoʻī |
| Kiko heheʻe | 30-33 °C (mālamalama ʻia) |
| Kikowaena paila | 245-246 °C (mālamalama ʻia) |
| Ka nui o ka paʻa | 1.134 g/mL ma 25 °C (lit.) |
| Kaomi mahu | 1 mm Hg (102 °C) |
| ʻIneki Refractive | n20/D 1.439(lit.) |
| Mahana mālama. | E mālama ma lalo o +30°C. |
| Ka hiki ke hoʻoheheʻe ʻia | 675g/l |
| Palapala | Wai ma hope o ka heheʻe ʻana |
| Waihoʻoluʻu | Melemele moakāka |
Hoʻohana
He huahana biomass ka waikawa Levulinic a me kāna mau mea i loaʻa, e like me ka ethyl levulinate a me ka alkyl levulinate, hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻohui wahie.
Hoʻohana ʻia ka waikawa levulinic no ka calcium levulinate i nā lāʻau lapaʻau, e like me nā esters i nā solvents a me nā plasticizers, a no ka hana ʻana i ka valerolactone. I ka hoʻonui ʻia ʻana o kona hoʻohana ʻana, e hana ʻia paha ia mai nā ʻōpala cellulosic. Loaʻa ka waikawa Mesitonic, kahi homolog o ka waikawa levulinic ma ka hoʻolapalapa ʻana i ka mesityl oxide me KCN.
Hiki i ka hydrogenation o ka waikawa levulinic ke hana i nā kemika pono ʻē aʻe. ʻO Valeric-g-lactone, he mea hoʻoheheʻe kūpono me nā hoʻohana nui, hiki ke loaʻa i nā hua kiʻekiʻe loa. Hiki ke hydrogenated kēia hui i 1,4-pentandiol, kahi ma hope o ka dehydration e hua mai ai i ka 1,3-pentadine (piperylene). Ua ʻike ʻia ʻo Piperylene e polymerize i kahi nui rubbery a no laila he kumu ia o ka rubber synthetic (Ghorpade lāua ʻo Hanna 1997).
ʻO ka waikawa Levulinic kahi mea mua no ka hana ʻana o nā mea waena pono e like me γ-valerolactone, ethyl levulinate, pentanoic acid a me 2-methyl-tetrahydrofuran. ʻO ka Derivatization a me ka esterification o ka waikawa levulinic e hopena i nā biofuels hiki.
Hiki ke hoʻohana ʻia i loko o:
ʻO ka hoʻomākaukau ʻana o ka hui catalytic e synthesize i ka 5-hydroxymethylfurfural a me ka furfural.
Ka hana ʻana o kahi ʻala kalepa, ʻo fraistone.
ʻO ka hoʻohui ʻana o nā derivatives pyrrolidone ma o ka amination reductive.
ʻO ka hoʻohui holoʻokoʻa o ka mycobacterial arabinogalactan.
Ka hoʻopili ʻana
200KG/Drum a i ʻole e like me nā koi a ka mea kūʻai aku.
Mālama a me ka mālama ʻana
Ola papa: 24 mahina mai ka lā i hana ʻia ai i loko o ka pahu i wehe ʻole ʻia mua i mālama ʻia i kahi maloʻo a me kahi anuanu, mai ka lā pololei, ka wai.
Hale kūʻai ea, hoʻomaloʻo wela haʻahaʻa, hoʻokaʻawale ʻia mai nā mea hoʻomake a me nā waikawa.
