Monument Chemical Tetrahydrofuran (THF)

Monument Chemical Tetrahydrofuran (THF) is a clear, colorless liquid with an ether‐like odor. The principal end uses of THF include PTMEG, pharmaceutical solvent, adhesives, PVC cement and magnetic tape. Due to its' tendency to form peroxides during storage, THF is inhibited with BHT.

Chemical Name: Tetrahydrofuran

CAS Number: 109-99-9

Synonyms: 1,4-Epoxy-Butane, 1,4-Epoxybutane, Butane a,D-Oxide, Butylene Oxide, Cyclotetramethylene, Cyclotetramethylene Oxide, Diethylene Oxide, Furanidine, Oxacyclopentane, Oxolane, Tetrahydrofuraan, Tetrahydrofurane, Tetrahydrofuranne, Tetramethylene Oxide, THF

Safety Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Name
Base Chemicals Functions
CAS No.
109-99-9
EC No.
203-726-8

Applications & Uses

Base Chemicals End Uses
End Use Applications
  • PTMEG.
  • Pharmaceutical solvent.
  • Adhesives.
  • PVC cement.

Properties

Physical Form
Empirical Formula
C4H8O
Appearance
Colorless
Typical Properties
ValueUnitsTest Method / Conditions
Molecular Weight72.11g/mol
Freezing Point-108°C
Flash Point (Closed Cup)-20°C
Autoignition Temperature230°C
Boiling Point (760mmHg)66°C
Density (20°C)0.89kg/L
Evaporation Rate (nBuAc = 1)8
Vapor Pressure (20°C)193hPa
Solubility (In Water, 20°C)Complete
Refractive Index (20°C)1.407
Lower Flammability in Air1.5v/v%
Viscosity (20°C)0.516cP
Upper Flammability (In Air)12.4v/v%

Safety & Health

Health & Safety Information
  • Under current U.S. OSHA's Hazardous Communication program THF is classified as a flammable liquid, can cause eye and respiratory irritation. Keep the material away from heat  sources, hot surfaces, open flames, and sparks. Use only in a well‐ventilated area.
  • Observe good industrial hygiene practices and use  appropriate Personal Protective Equipment.

Storage & Handling

Storage & Handling

THF should be stored only in tightly closed, properly vented containers away from heat, sparks, open flame or strong oxidizing agents. Use only nonsparking tools.  Containers should be  grounded before beginning transfer. Electrical equipment should conform to national electric code. Handle empty containers carefully. Flammable combustible residue remains after  emptying. 

General industry practice is to store THF in carbon steel vessels. Storage in properly lined steel or stainless steel to avoid slight discoloration from mild steel is recommended. Avoid  contact with air when  storing for long periods of time. This product may  absorb water if exposed to air.

Provided proper storage and handling precautions are taken, THF manufactured and delivered by Monument Chemical is stable for at least 12 months from the date of manufacture. THF that is subsequently repackaged, handled and/or delivered by third parties may have a different shelf life and may require third party shelf life studies. Product past the retest date  should be evaluated to confirm that all specifications  are within their limits before use.