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Tetrahydrofuran CAS# 109-99-9
CAS Number: 109-99-9
Chemical Formula: C4H8O
Synonyms:
1,4-Epoxybutane
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, abbreviated as THF, is a heterocyclic organic compound. It belongs to the ether class and is the complete hydrogenation product of the aromatic compound furan. Tetrahydrofuran is one of the strongest polar ethers. It is used as a medium-polar solvent in chemical reactions and extractions. It is a colorless, volatile liquid at room temperature with an ether-like smell. It is soluble in most organic solvents such as water, ethanol, ether, acetone, and chemicalbook benzene, and is called a "universal solvent." It is partially miscible with water at room temperature, and some illegal reagent dealers use this to make huge profits by adding water to tetrahydrofuran reagents. Since THF has a tendency to form peroxides during storage, industrial products generally add the antioxidant BHT. The moisture content is ≦0.2%. It has the characteristics of low toxicity, 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 | n |
| 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 λ: 275 nm Amax: ≤0.046 λ: 315 μm Amax: ≤0.0044 |
| 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 ≤0.005 at 350nm ≤0.005 at 400nm ≤0.02 at 300nm ≤0.046 at 275nm ≤0.18 at 250nm ≤0.26 at 245nm ≤1.0 at 212nm |
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 LC50 inhal (rat) 21,000 ppm (3 h) PEL (OSHA) 200 ppm (590 mg/m3) TLV-TWA (ACGIH) 200 ppm (590 mg/m3) STEL (ACGIH) 250 ppm (737 mg/m3) |
| 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
