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Tetrahydro-2-methylfuran

2-Methyltetrahydrofuran Struktur
96-47-9
CAS-Nr.
96-47-9
Bezeichnung:
Tetrahydro-2-methylfuran
Englisch Name:
2-Methyltetrahydrofuran
Synonyma:
2-MeTHF;METHF;METHYLTETRAHYDROFURAN;Furan, tetrahydro-2-methyl-;2-Methyloxolane;2-Methyltetrahydrofu;TETRAHYDRO-2-METHYLFURAN;2-Methyltetrahydrofuran,For Grignard reaction,anhydrous, stabilized;2 METHYLE Thf;Tetrahydrosylvan
CBNumber:
CB8854728
Summenformel:
C5H10O
Molgewicht:
86.13
MOL-Datei:
96-47-9.mol

Tetrahydro-2-methylfuran Eigenschaften

Schmelzpunkt:
-136 °C
Siedepunkt:
78-80 °C(lit.)
Dichte
0.86 g/mL at 25 °C(lit.)
Dampfdruck
136 hPa (20 °C)
Brechungsindex
n20/D 1.406(lit.)
Flammpunkt:
10.4 °F
storage temp. 
Store below +30°C.
L?slichkeit
150g/l
Aggregatzustand
Liquid
Farbe
Clear colorless
Explosionsgrenze
1.2-5.7%(V)
Wasserl?slichkeit
15 g/100 mL (25 C)
FreezingPoint 
-136℃
BRN 
102448
Dielectric constant
6.97
Stabilit?t:
Stable, but highly flammable. Incompatible with oxidizing agents, strong acids, strong bases. May form explosive peroxides in storage, so often supplied with an inhibitor added.
LogP
1.1 at 20℃
CAS Datenbank
96-47-9(CAS DataBase Reference)
NIST chemische Informationen
Furan, tetrahydro-2-methyl-(96-47-9)
EPA chemische Informationen
Furan, tetrahydro-2-methyl- (96-47-9)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher F,Xi
R-S?tze: 11-19-36/37-2017/11/19
S-S?tze: 16-23-39-33-26
RIDADR  UN 2536 3/PG 2
WGK Germany  2
RTECS-Nr. LU2800000
Selbstentzündungstemperatur 270 °C
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29321900
Toxizit?t LD50 orally in Rabbit: > 300 - 2000 mg/kg LD50 dermal Rat > 2000 mg/kg
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung GHS hazard pictogramssrc="/GHS02.jpg" width="20" height="20" /> P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H318 Verursacht schwere Augensch?den. Schwere Augensch?digung Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P280, P305+P351+P338, P310
Sicherheit
P210 Von Hitze, hei?en Oberfl?chen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P233 Beh?lter dicht verschlossen halten.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P312 BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P303+P361+P353 BEI BERüHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

Tetrahydro-2-methylfuran Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R11:Leichtentzündlich.
R19:Kann explosionsf?hige Peroxide bilden.
R36/37:Reizt die Augen und die Atmungsorgane.

S-S?tze Betriebsanweisung:

S16:Von Zündquellen fernhalten - Nicht rauchen.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S39:Schutzbrille/Gesichtsschutz tragen.
S33:Ma?nahmen gegen elektrostatische Aufladungen treffen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Beschreibung

2-Methyltetrahydrofuran (MeTHF or 2-MTHF) is a bio-based solvent that is recognized as the most favorable of ether solvents. The relatively high boiling point (80℃) and low melting point (-137℃) provide a broad temperature range for a myriad of processing conditions. It is a potential greener solvent alternative for organic synthesis. It shows resistance to reduction by lithium making it a promising candidate as electrolytes in lithium batteries. Its polarity and Lewis base strength is intermediate between tetrahydrofuran (THF) and diethyl ether. The ring opening reaction of 2-MTHF has been studied using acid chloride and iodide.

Chemische Eigenschaften

Colorless liquid; ether-like odor. Solubility in waterincreases with a decrease in temperature. Freelysoluble in most organic solvents.

Verwenden

2-Methyltetrahydrofuran acts as a solvent in organic synthesis. It is considered as a replacement for terahydrofuran due to its higher reaction temperature and easy separation after reaction. It is also useful in the electrolyte formulation for secondary lithium electrodes and as a component in alternative fuels. Further, it is used as a solvent for spectroscopic studies at -1960C. It also acts as a solvent for Grignard reagent in organometallic reactions. In addition to this, it plays an important role as a motor fuel.

Hazard

Flammable, dangerous fire risk.

l?uterung methode

Likely impurities are 2-methylfuran, methyldihydrofurans and hydroquinone (stabiliser, which is removed by distillation under reduced pressures). It is washed with 10% aqueous NaOH, dried, vacuum distilled from CaH2, passed through freshly activated alumina under nitrogen, and refluxed over sodium metal under vacuum. Store it over sodium. [Ling & Kevan J Phys Chem 80 592 1976.] Distil it from sodium under vacuum, and store it with sodium-potassium alloy (this treatment removes water and prevents the formation of peroxides). Alternatively, it can be freed from peroxides by treatment with ferrous sulfate and sodium bisulfate, then solid KOH, followed by drying with, and distilling from, sodium, or type 4A molecular sieves under argon. It may be difficult to remove *benzene if it is present as an impurity (can be readily detected by its ultraviolet absorption in the 249-268nm region). [Ichikawa & Yoshida J Phys Chem 88 3199 1984.] It has also been purifed by percolating through Al2O3 and fractionated collecting fraction b 79.5-80o. After degassing, the material is distilled onto degassed molecular sieves, then distilled onto anthracene and a sodium mirror. The solvent is then distilled from the green solution onto potassium mirror or sodium-potassium alloy, from which it is distilled again. [Mohammad & Kosower J Am Chem Soc 93 2713 1971.] It should be stored in the presence of 0.1% of hydroquinone or 2,6-di-tert-butyl –p-cresol as stabiliser. The R(+)-enantiomer has b 78-80o/atm and []D +27.5o (neat), and the S(-)-enantiomer has b 86o/atm and [] D -27.0o (neat) [Iffland & Davis J Org Chem 42 4150 1977, Gagnaire & Butt Bull Soc Chim Fr 312 1961, Beilstein 17 III/IV 60, 17/1 V 78.] HARMFUL VAPOURS.

Tetrahydro-2-methylfuran Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Tetrahydro-2-methylfuran Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 492)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Jinan Chengyuan Chemical Co. , Ltd.
+86-0531-88274992 +8615552568189
2408152070@qq.com China 10 58
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8807 58
Hebei Mojin Biotechnology Co., Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12834 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652
info@fdachem.com China 20283 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29791 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886
info@dakenam.com China 18751 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21634 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075
jack.li@time-chemicals.com China 1803 55
Jiangsu Qingquan Chemical Co., Ltd.
+86-571-86589381,86589382,86589383
sales1@qqpharm.com CHINA 154 55

96-47-9(Tetrahydro-2-methylfuran)Verwandte Suche:


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  • MARKER DNA 100BP (4X250ΜL)
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