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Tetrahydro-2-methylfuran Produkt Beschreibung

2-Methyltetrahydrofuran Struktur
96-47-9
CAS-Nr.
96-47-9
Bezeichnung:
Tetrahydro-2-methylfuran
Englisch Name:
2-Methyltetrahydrofuran
Synonyma:
METHF;2-MeTHF;2-Methyloxolane;Tetrahydrosylvan;TETRAHYDROSILVAN;2-Methylfuranidine;2-Methyltetrahydrofu;METHYLTETRAHYDROFURAN;2-Methyletrahydrofuran;2-METHYLTETRAHYDROFURA
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.
Löslichkeit
150g/l
Aggregatzustand
Liquid
Farbe
Clear colorless
Explosionsgrenze
1.2-5.7%(V)
Wasserlöslichkeit
15 g/100 mL (25 C)
FreezingPoint 
-136℃
BRN 
102448
Dielectric constant
6.97
Stabilität:
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.
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 Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher F,Xi
R-Sätze: 11-19-36/37-2017/11/19
S-Sätze: 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
Toxizität LD50 orally in Rabbit: > 300 - 2000 mg/kg LD50 dermal Rat > 2000 mg/kg
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H313 Kann bei Hautkontakt gesundheitsschädlich sein. Acute toxicity,dermal Category 5 P312
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H318 Verursacht schwere Augenschäden. Schwere Augenschädigung Kategorie 1 Achtung P280, P305+P351+P338, P310
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P240 Behälter und zu befüllende Anlage erden.
P241 Explosionsgeschützte [elektrische/Lüftungs-/ Beleuchtungs-/...] Geräte verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P303+P361+P353 BEI BERÜHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.
P370+P378 Bei Brand: zum Löschen verwenden.

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

R-Sätze Betriebsanweisung:

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

S-Sätze 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:Maßnahmen 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?C) and low melting point (-137?C) 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 may be used as solvent for phosphatidylserine synthesis.
It may be used as an alternative solvent to:
  • DMSO (dimethyl sulfoxide) or MTBE (methyl tertiary butyl ether) in the C-C bond forming reactions catalyzed by lyase enzyme.
  • THF in the reaction between Grignard reagents and carbonyl compounds.
  • Methylene chloride in some biphase reactions.

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.

Allgemeine Beschreibung

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is a biorenewable and thus aligns with "Safer Solvents and Auxiliaries" and "Use of Renewable Feedstocks". Click here for more information.
2-Methyltetrahydrofuran (2-MTHF), a 2-methyl substituted tetrahdrofuran, is a biomass derived solvent. 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 to form secondary chlorides and primary iodides respectively. On long term storage, tetrahydrofuran forms organic peroxides. This process can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT removes the free radicals required for the peroxide formation.

Hazard

Flammable, dangerous fire risk.

läuterung 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 Händler.

Global( 316)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 15421 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com China 1807 55
Jiangsu Qingquan Chemical Co., Ltd.
+86-571-86589381/86589382/86589383
lyy@qqpharm.com sales1@qqpharm.com CHINA 154 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
career henan chemical co
+86-0371-55982848
sales@coreychem.com China 29953 58
NINGBO INNO PHARMCHEM CO., LTD.
13867897135
sales@nbinno.com CHINA 925 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
alice@crovellbio.com China 5942 58

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


  • 2-Methyltetrahydrofuran,For Grignard reaction,anhydrous, stabilized
  • 2-Methyltetrahydrofuran,99+%,Extra Dry,Stabilized
  • 2-Methyltetrahydrofuran,99+%,Extra Dry over Molecular Sieve,Stabilized
  • 2-Methyltetrahydrofuran,99+%,Extra Dry,stabilizer free
  • 2-Methyltetrahydrofuran ,99% [stabilized with BHT]
  • 2-Methyltetrahydrofuran,Tetrahydro-2-methylfuran, Tetrahydrosilvan
  • 2-Methyltetrahydrofu
  • 2-Methyltetrahydrofuran, Stabilized, AcroSeal, Extra Dry over Molecular Sieve, 99+%
  • 2-Methyltetrahydrofuran, stabilized, AcroSeal, Extra Dry, 99+%
  • 2-Methyltetrahydrofuran, stabilized, pure, 99+%
  • 2-Methyltetrahydrofuran ,99%
  • 2-Methyltetrahydrofuran, 99+%, Extra Dry over Molecular Sieve, Stabilized, AcroSeal
  • 2-Methyltetrahydrofuran, 99+%, pure, stabilized
  • 2-Methyltetrahydrofuran, stabilized, 99+% 100GR
  • 2-Methyltetrahydrofuran, stabilized, 99+% 500GR
  • 2-Methylfuranidine
  • 2-Methyloxolane
  • Furan, 2-methyl-tetrahydro-
  • Tetrahydrofuran, 2-methyl-
  • Tetrahydrosylvan
  • 2-Methyltetrahydrofuran, 99%, SuperDry, stabilizer free, water≤20 ppm, J&KSeal
  • 2-Methyltetrahydrofuran, 99%, SpcDry, Water≤50 ppM (by K.F.), SpcSeal
  • 2-Methyltetrahydrofuran anhydrous, >=99%, Inhibitor-free
  • 2-Methyltetrahydrofuran anhydrous, >=99.0%, contains 250 ppm BHT as stabilizer
  • 2-Methyltetrahydrofuran ReagentPlus(R), >=99.5%, contains 150-400 ppm BHT as stabilizer
  • 2-Methyltetrahydrofuran (stabilized with BHT)
  • 2-Methyletrahydrofuran
  • 2-MeTHF
  • oxolan-1-iuM-2-ylMethyl
  • 2-Methyltetrahydrofuran, 99+%, Extra Dry, stabilized, AcroSeal
  • 2-Methyltetrahydrofuran, 99+%, Extra Dry, stabilizer free, AcroSeal
  • 2-Methyltetrahydrofuran, SuperDry, J&KSeal
  • 2-Methyloxolane, 1,4-Epoxypentane
  • MeTHF)2-Methyltetrahydro
  • 2-Methyltetrahydrofuran, 99+%,stabilized
  • 2-METHYLTETRAHYDROFURAN, EXTRA DRY
  • 2-METHYLTETRAHYDROFURAN, EXTRA DRY OVER MOLECULAR SIEVES
  • 2-Methyltetrahydrofuran, stabilizer free, AcroSeal, Extra Dry, 99+%
  • 2-Methyltetrahydrofuran, stabilized
  • 2-MethyltetrahydrofuranStabilizedAcroSealExtra Dry
  • 2-MethyltetrahydrofuranStabilizedAcroSealExtra Dry over Molecular Sieve
  • 2-Methyltetrahydrofuran, stabilizer free, AcroSeal, Extra Dry
  • 2-Methyltetrahydrofuran, 99%, SuperDry, water≤20 ppm, J&KSeal
  • 2-Methyltetrahydrofuran, 99%, SuperDry, with molecular sieves, stabilized with BHT, water≤20 ppm, J&KSeal
  • 2-Methyltetrahydrofuran( 99%, HyDry, with molecular sieves, Water≤50 ppm (by K.F.))
  • 2-Methyltetrahydrofuran(99%, HyDry, Water≤50 ppm (by K.F.))
  • MARKER DNA 100BP (4X250ΜL)
  • PIPES DISODIUM FR BIOPHARMA PRODUCTION
  • PIPES FREE ACID FR BIOPHARMA PRODUCTION
  • 2-Methyltetrahydrofuran, Stabilizer free, Extra Dry
  • 2-Methyltetrahydrofuran, Over Molecular Sieves, Stabilized
  • 2-Methyltetrahydrofuran, stabilized with &ap:150 to 400ppm BHT
  • 2-Methyltetrahydrofuran, Stabilized: For Grignard reaction
  • 2-METHYLTETRAHYDROFURA
  • 2-Methyltetrahydrofuran, 99%, stab. with ca 150-400ppm BHT
  • ALPHA-METHYLTETRAHYDROFURAN
  • METHF
  • METHYLTETRAHYDROFURAN
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