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Jeneng Produk: |
Gamma valerolactone |
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CAS: |
108-29-2 |
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MF: |
C5H8O2 |
|
MW: |
100.12 |
|
EINECS: |
203-569-5 |
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File Mol: |
108-29-2.mol |
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Titik lebur |
−31 ° C (surem) |
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Titik didih |
207-208 ° C (surem) |
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kapadhetan |
1,05 g / mL ing25 ° C (lit.) |
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kerapatan uap |
3.45 (vs hawa) |
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indeks bias |
n20 / D 1.432 (surem) |
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FEMA |
3103 | GAMMA-VALEROLACTONE |
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Fp |
204,8 ° F |
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temp panyimpenan |
Simpen ing ngisor + 30 ° C. |
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wujud |
Cairan |
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warna |
Cetha tanpa warna |
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PH |
7 (H2O, 20â „ƒ) |
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Kelarutan Banyu |
SALAH |
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Nomer JECFA |
220 |
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BRN |
80420 |
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InChIKey |
GAEKPEKOJKCEMS-UHFFFAOYSA-N |
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Referensi CAS DataBase |
108-29-2 (Referensi CAS DataBase) |
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Referensi Kimia NIST |
2 (3H) -Furanone, dihydro-5-methyl- (108-29-2) |
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Sistem Registrasi Bahan EPA |
2 (3H) -Furanone, dihydro-5-methyl- (108-29-2) |
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Kode Bahaya |
Xi |
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Pernyataan Risiko |
36-36 / 37/38 |
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Pernyataan Keamanan |
39-26-37 / 39 |
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WGK Jerman |
2 |
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RTECS |
LU3580000 |
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TSCA |
Nggih |
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Kode HS |
29322980 |
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Properti Kimia |
Cairan tanpa warna. Ketegangan permukaan 30 dynes / cm (25C), viskositas 2,18 cP (25C), pH (anhidrat): 7. pH (larutan 10% ing banyu sulingan): 4.2. Ora bisa digunakake kanthi pelarut banyu lan pelarut anorganik, resin, lilin, lsp; rada miscible karo zein, beeswax, petrolatum; immiscible karo gliserin anhidrat, lim, kasein, permen karet arab, lan protein kedelai. Bisa dibakar |
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Properti Kimia |
γ-Valerolactone duwe bau sing wangi lan legi. |
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Migunakake |
Mandi pewarna (kopling), cairan rem, minyak pemotong, lan pelarut kanggo perekat, insektisida, lan lacquer. |
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Preparasi |
Kanthi nyuda asam llevulinat banjur di siklik. |
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Profil Keamanan |
Hasil panularan racun sing cukup. Iritasi kulit. Dilaporake data mutasi. Cairan sing bisa dibakar nalika digawe panas utawa murub; bisa reaksi karo bahan oksidasi. Kanggo nglawan kobongan, gunakake banyu, busa, CO2, bahan kimia garing. Nalika digawe panas nganti bosok, kumelun ngetokake asap lan asap iritasi. |
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Metode Pemurnian |
Ngresiki distilasi pecahan -lactoneby [Boorman & Linstead J Chem Soc 577,580 1933]. IR: maks 1790 (CS2), 1775 (CHCl3) cm-1 [Jones et al. Bisa J Chem 3 72007 1959]. Komplek BF3 distil ing 110-111o / 20mm [Reppe et al. JustusLiebigs Ann Chem 596 179 1955]. Ditondoi kanthi konversi menyang-hidroksi-n-valeramida nalika perawatan nganggo NH3, m 51.5-52o (kanthi penguapan alon larutan CHCl3). [Beilstein 17 H 235, 17 I 131, 17 II 288, 17 III / IV4176, 17/9 V 24.] |
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Bahan baku |
Asam aketoxyacetic -> Asam levulinat |
