900636

Tetrahydrofuran

≥99.9%, anhydrous, inhibitor-free, ZerO2^®

• Synonym(s): Degassed and low oxygen tetrahydrofuran, THF, Tetrahydrofuran ZerO₂^®, Butylene oxide, Oxolane, Tetramethylene oxide
• Empirical Formula (Hill Notation): C₄H₈O
• CAS Number: 109-99-9
• Molecular Weight: 72.11
• Beilstein/REAXYS Number: 102391
• EC Number: 203-726-8
• MDL number: MFCD00005356
• UNSPSC Code: 12352005
• NACRES: NA.07
• Grade: ZerO₂^®
• Assay: ≥99.9%
• Bp: 65-67 °C (lit.)
• Vapor pressure: 114 mmHg ( 15 °C); 143 mmHg ( 20 °C)

Properties

• Product Name: Tetrahydrofuran, anhydrous, inhibitor-free, ZerO₂^®, ≥99.9%
• grade: ZerO₂^®
• Quality Level: 100
• vapor density: 2.5 (vs air)
• vapor pressure: 114 mmHg ( 15 °C); 143 mmHg ( 20 °C)
• assay: ≥99.9%
• form: liquid
• autoignition temp.: 610 °F
• quality: anhydrous
• expl. lim.: 1.8-11.8 %
• dilution: (for analytical testing)
• impurities: ≤0.002% water; water
• refractive index: n20/D 1.407 (lit.)
• pH: ~7
• bp: 65-67 °C (lit.)
• mp: −108 °C (lit.)
• density: 0.889 g/mL at 25 °C (lit.)
• SMILES string: C1CCOC1
• InChI: 1S/C4H8O/c1-2-4-5-3-1/h1-4H2
• InChI key: WYURNTSHIVDZCO-UHFFFAOYSA-N

Description

Application

ZerO₂ products are rigorously degassed with highly pure inert gas providing solvents and solutions (anhydrous if specified) with very low residual oxygen content.

Other Notes

Greener alternatives are available for many THF applications, 2-Methyltetrahydrofuran (900520)

Legal Information

ZerO₂ is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictograms: GHS02,GHS08,GHS07
• signalword: Danger
• hcodes: H225,H302,H319,H335,H336,H351
• pcodes: P202 - P210 - P233 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• target_organs: Central nervous system, Respiratory system
• supp_hazards: EUH019
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: -6.2 °F - closed cup
• flash_point_c: -21.2 °C - closed cup