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Methyltetrahydrofuran

2-Methyltetrahydrofuran

HCID 7301
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Grundinformationen

CAS
25265-68-3
Standard-SMILES
CC1CCCO1
InChIKey
JWUJQDFVADABEY-UHFFFAOYSA-N
Summenformel
C5H10O
Durchschnittliche Molmasse
86,13 g/mol
Monoisotopische Masse
86,07316494

Überblick

Methyltetrahydrofuran appears as a colorless liquid with an ether-like odor. Less dense than water. Vapors heavier than air. Used to make other chemicals and as a solvent.

Namen und Bezeichner

Bevorzugter Name
2-Methyltetrahydrofuran
IUPAC
2-methyloxolane
Lokaler Name
Methyltetrahydrofuran
Englischer Name
methyltetrahydrofuran
Summenformel
C5H10O
Molmasse
86.13

Namen und Synonyme

2-METHYLTETRAHYDROFURAN96-47-92-MethyloxolaneTetrahydrosylvanTetrahydro-2-methylfuranFuran, tetrahydro-2-methyl-MTHFDTXSID9030258FCD0VD8ALFNSC-2115DTXCID7010258RefChem:88394
Weitere Namen anzeigen
DIMETHYLTETRAHYDROFURANTetrahydromethylfuran2-methyl-furamethyltetrahydrofuran
202-507-4MethyltetrahydrofuranFuran, 2-methyl-tetrahydro-25265-68-32-MeTHFFuran, tetrahydromethyl-MFCD000053672-methyl tetrahydrofuran

Datenbank-Bezeichner

CAS
25265-68-3、96-47-9
PubChem CID
7301
DTXSID
DTXSID9030258
ChEMBL
CHEMBL1580503
UNII
FCD0VD8ALF
EC Number
202-507-4、246-769-8
Nikkaji
J49.588C

Eigenschaften

Berechnete StruktureigenschaftenWird ergänzt

XLogP
1
Polarare Oberfläche (TPSA)
9,2 Ų
H-Brücken-Donoren
0
H-Brücken-Akzeptoren
1
Frei drehbare Bindungen
0
Schwere Atome
6
Formalladung
0
Komplexität
43,2

Experimentelle und physikochemische Eigenschaften

Chemical ClassesFlammable agents - 3rd degree
SolventsSolvents -> Ethers (<C12)
Density0.853 @ 20°C
Boiling Point80 °C @760 [mm Hg]
Vapor Pressure97.3 [mmHg]
Physical Description · 3 Einträge

Methyltetrahydrofuran appears as a colorless liquid with an ether-like odor. Less dense than water. Vapors heavier than air. Used to make other chemicals and as a solvent.

Liquid

Clear, colorless to yellow liquid with a mildly irritating odor of ether; [NTP: CSWG]

Physikochemische Eigenschaften

Siedepunkt
77 · 77-78 °C
EPA chemische Informationen
Furan, tetrahydromethyl- (25265-68-3)

Sicherheit und Regulatorisches

Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.

GHS-Klassifizierung

GHS Classification · 6 Einträge

Danger

H225 (85.6%): Highly Flammable liquid and vapor [Danger Flammable liquids]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 439 reports by companies from 22 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

Gefahrenhinweise

Regulatory Information · 5 Einträge

Chemical: Furan, tetrahydro-2-methyl-

Furan, tetrahydro-2-methyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Furan, tetrahydro-2-methyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 28-02-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13699

Furan, tetrahydro-2-methyl-: HSNO Approval: HSR001202 Approved with controls

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelFlammable Liquid
Fire Hazards · 2 Einträge

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Health Hazards · 2 Einträge

Chemie und Industrie

Verwendung und Herstellung

Uses · 2 Einträge

Used as a specialty solvent and as a reactant in chemical manufacture, as a solvent for organometallic reagents, and for electrolytic solutions in lithium batteries; Also recently being used in gasoline alternative P-series fuels (blends of ethanol, methyltetrahydrofurans, and pentanes); [NTP: CSWG]

Battery Manufacturing [Category: Industry]

U.S. Production2023: 1,000,000 - <8,500,000 lb
Industry UsesFuel
General Manufacturing Information · 2 Einträge

Pharmaceutical and Medicine Manufacturing

Furan, tetrahydro-2-methyl-: ACTIVE

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Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

· Inhalation or contact with material may irritate or burn skin and eyes.

Hazards SummaryStabilized with 0.025% BHT (CAS# 128-37-0); An eye irritant; [Sigma-Aldrich MSDS] See Tetrahydrofuran.
DOT ID and Guide2536 127
Reactive GroupEthers
Reactivity AlertsHighly Flammable
Reactivity ProfileMETHYLTETRAHYDROFURAN reacts violently with oxidants, causing fire and explosion hazards [Handling Chemicals Safely 1980. p. 891].
DOT Hazard Classification · 4 Einträge

Methyltetrahydrofuran

UN2536

Class 3 Flammable and combustible liquid (49 eCFR § 173.120)

PG II: the degree of danger presented by the material is medium

Air and Water ReactionsHighly flammable. Partially soluble in water. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick 1979. p.151-154, 164].
Peroxide Forming Chemical · 6 Einträge

2-Methyltetrahydrofuran

B*: Compounds that form peroxides on concentration (distillation/evaporation)

5 samples had 0-100 ppm peroxide; age &gt;1-10+ yrs

Kelly

Unstabilized MeTHF may quickly form peroxides. See Millapore Sigma Sheet linked for more information.

https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma-Aldrich/General_Information/1/greener-solvents-br-ms.PDF

Sicherheit und Schutzausrüstung

Fire FightingExcerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Accidental Release Measures · 2 Einträge

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

First Aid · 2 Einträge

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

General First Aid:

Exposure Control and Personal Protection· Wear positive pressure self-contained breathing apparatus (SCBA).
Nonfire Spill ResponseExcerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Isolation and Evacuation · 2 Einträge

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

Immediate precautionary measure

Protective Action Criteria (PAC) · 3 Einträge

4.0 [ppm]

44 [ppm]

270 [ppm]

Personal Protective Equipment (PPE)Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Emergency Response Planning GuidelinesCAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.

Toxikologische Informationen

Adverse EffectsNeurotoxin - Acute solvent syndrome
Toxicity DataLC50 (rat) = 6,000 ppm/4hr