English name: Tetrahydrofuran
Chinese alias: oxolane; oxolane; anhydrous tetrahydrofuran; tetrahydrooxalocene; tetramethylene oxide; 1,4-epoxybutane;
CAS RN: 109-99-9
EINECS Number: 203-726-8
Molecular formula: C₁₃H₁₂O
Molecular weight: 184.2338

Physical and chemical properties:

Properties: Colorless transparent liquid with ether odor.
Boiling point: 67°C
Freezing point: -108°C
Relative density: 0.985
Refractive index: 1.4050
Flash point: -17°C
Solubility: Miscible with water, alcohol, ketone, benzene, ester, ether, hydrocarbon.

Uses: Used as solvent, raw material for organic synthesis.

Production process: Tetrahydrofuran is prepared by the technologically advanced maleic anhydride hydrogenation method. This technology is a patented technology jointly developed by the Institute of Physical Chemistry of Peking University and the Academy of Petrochemical Engineering. It has advanced technology, stable process, and an annual production capacity of 3,200 tons. Using first-class DCS control, the THF produced has high purity, good quality, and reaches the international first-class standard. In addition to being sold well in China, the products are also exported to Southeast Asia and other countries.

Quality Index:

Indicator name Unit Indicator
Superior product First-class product Qualified product
Purity ≥ % 99.90 99.70 99.50
Chroma≤ No. 5 7 10
Moisture≤ppm 100 300 500