Tetrahydrofuran
• CAS Number: 109-99-9
• Chemical Formula: C4H8O
• Synonyms:
▪ Butylene oxide
▪ Cyclotetramethylene oxide
• Appearance: Colorless liquid
• HS Code: 29321100
• MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Tetrahydrofuran CAS# 109-99-9
Tetrahydrofuran, commonly abbreviated as THF, is a heterocyclic organic compound classified as an ether. It is the fully hydrogenated derivative of the aromatic compound furan. As one of the most strongly polar ethers, THF serves as a medium-polar solvent in chemical reactions and extraction processes. At room temperature, it appears as a colorless, volatile liquid with an ether-like odor. Soluble in water, ethanol, ether, acetone, benzene, and most other organic solvents, it is dubbed a "universal solvent." While partially miscible with water at ambient temperatures, some unregulated reagent suppliers exploit this property to adulterate THF with water for illicit profits. THF tends to form peroxides during storage, so industrial-grade products typically contain the antioxidant BHT as a stabilizer. Its moisture content is specified to be ≤0.2%, and it exhibits characteristics of low toxicity, a low boiling point, and good fluidity.
Parameters
Melting point | -108°C |
Boiling point | 66 °C |
density | 0.887 g/mL at 20 °C |
vapor density | 2.5 (vs air) |
vapor pressure | <0.01 mm Hg ( 25 °C) |
refractive index | n20/D 1.465 |
Fp | >230 °F |
storage temp. | Store at +5°C to +30°C. |
solubility | water: soluble |
form | Liquid |
Specific Gravity | 0.89 |
color | <10(APHA) |
Relative polarity | 0.207 |
PH | 7-8 (200g/l, H2O, 20℃) |
Odor | Ethereal, detectable at 2 to 50 ppm |
PH Range | 7 |
explosive limit | 1.5-12.4%(V) |
Water Solubility | miscible |
FreezingPoint | -108℃ |
Sensitive | Air Sensitive & Hygroscopic |
λmax | λ: 245 nm Amax: ≤0.26 |
Merck | 14,9211 |
BRN | 102391 |
Henry's Law Constant | 1.54 (static headspace-GC, Welke et al., 1998) |
Exposure limits | TLV-TWA 200 ppm (590 mg/m3) (ACGIH, MSHA, and OSHA); STEL 250 ppm (ACGIH); IDLH 20,000 ppm (NIOSH). |
Dielectric constant | 7.5800000000000001 |
Dielectric constant | 11.6（-70℃） |
Stability: | Stable. Incompatible with halogens, strong oxidizing agents, strong reducing agents, strong bases, oxygen. May generate explosive peroxides in storage if in contact with air. Highly flammable. Store at room temperature under nitrogen. Hazardous polymerisation may occur. Light sensitive. May contain 2,6-di-tertbutyl-4-methylphenol (BHT) as a s |
InChIKey | WYURNTSHIVDZCO-UHFFFAOYSA-N |
LogP | 0.45 at 25℃ |
Surface tension | 27.31mN/m at 293.15K |
CAS DataBase Reference | 109-99-9(CAS DataBase Reference) |
NIST Chemistry Reference | Furan, tetrahydro-(109-99-9) |
IARC | 2B (Vol. 119) 2019 |
EPA Substance Registry System | Tetrahydrofuran (109-99-9) |
Absorption | ≤0.0044 at 315nm |
Safety Information
Hazard Codes | Xi,F,Xn |
Risk Statements | 36/37/38-36/37-19-11-40 |
Safety Statements | 26-36-33-29-16-46-37-13 |
RIDADR | UN 2924 3/PG 2 |
OEB | A |
OEL | TWA: 200 ppm (590 mg/m3), STEL: 250 ppm (735 mg/m3) |
WGK Germany | 1 |
RTECS | MD0916000 |
F | 3-10-23 |
Autoignition Temperature | 610 °F |
TSCA | Yes |
HazardClass | 3 |
PackingGroup | II |
HS Code | 29321100 |
Hazardous Substances Data | 109-99-9(Hazardous Substances Data) |
Toxicity | LD50 oral (rat) 2880 mg/kg |
IDLA | 2,000 ppm [10% LEL] |
Product Application of Tetrahydrofuran CAS# 109-99-9
Used as solvent, raw material for organic synthesis
Factory and Equipment Show
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
