TETRAHYDROFURAN
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Tetrahydrofuran is a colorless volatile cycloaliphatic ether made from 1.4-butanediol by dehydration. It is chemically neutral, highly polar and miscible with water. Tetrahydrofuran has excellent solvency for many organic substances and is a moderately polar, nonprotonic solvent. The chemical formula of cyclic ether is (CH2)4O.
Names and Identifiers
| Name | Tetrahydrofuran |
| Synonyms | THF oxolane Furanidine Tetrahydrofuran Diethylene oxide Furan, tetrahydro- Butane, alpha,delta-oxide Cyclotetramethylene oxide Sodium tri-sec-butylborohydride 1,2,3,4-tetrahydro-9H-fluoren-9-one TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER |
| CAS | 109-99-9 |
| EINECS | 203-726-8 |
| InChI | InChI=1/C13H12O/c14-13-11-7-3-1-5-9(11)10-6-2-4-8-12(10)13/h1,3,5,7H,2,4,6,8H2 |
| InChIKey | WYURNTSHIVDZCO-UHFFFAOYSA-N |
109-99-9 – Physico-chemical Properties
| Molecular Formula | C4H8O |
| Molar Mass | 72.11 |
| Density | 0.887 g/mL at 20 °C |
| Melting Point | -108°C |
| Boling Point | 66 °C |
| Flash Point | 6 °F (-14 ℃) |
| Water Solubility | miscible |
| Solubility | water: soluble |
| Vapor Presure | <0.01 mm Hg ( 25 °C) |
| Vapor Density | 2.5 (vs air) |
| Appearance | Liquid |
| Specific Gravity | 0.89 |
| Color | <10(APHA) |
| Odor | Ethereal, detectable at 2 to 50 ppm |
| Exposure Limit | TLV-TWA 200 ppm (590 mg/m3) (ACGIH,MSHA, and OSHA); STEL 250 ppm(ACGIH); IDLH 20,000 ppm (NIOSH). |
| Maximum wavelength(λmax) | [‘λ: 245 nm Amax: ≤0.26’, , ‘λ: 275 nm Amax: ≤0.046’, , ‘λ: 315 μm Amax: ≤0.0044’] |
| Merck | 14,9211 |
| BRN | 102391 |
| PH | 7-8 (200g/l, H2O, 20℃) |
| Storage Condition | Store at +5°C to +30°C. |
| 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. |
| Sensitive | Air Sensitive & Hygroscopic |
| Explosive Limit | 1.5-12.4%(V) |
| Refractive Index | n20/D 1.465 |
| Physical and Chemical Properties | Characteristics of colorless transparent liquid, ether odor. boiling point 67 ℃ freezing point -108 ℃ relative density 0.985 refractive index 1.4050 flash point -17 ℃ solubility, ketone, benzene, Ester, ether, hydrocarbon miscible. |
| Use | Used as solvent, raw material of organic synthesis |
109-99-9 – Risk and Safety
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R36/37 – Irritating to eyes and respiratory system. R19 – May form explosive peroxides R11 – Highly Flammable R40 – Limited evidence of a carcinogenic effect |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S33 – Take precautionary measures against static discharges. S29 – Do not empty into drains. S16 – Keep away from sources of ignition. S46 – If swallowed, seek medical advice immediately and show this container or label. S37 – Wear suitable gloves. S13 – Keep away from food, drink and animal foodstuffs. |
| UN IDs | UN 2924 3/PG 2 |
| WGK Germany | 1 |
| RTECS | MD0916000 |
| FLUKA BRAND F CODES | 3-10-23 |
| TSCA | Yes |
| HS Code | 29321100 |
| Hazard Class | 3 |
| Packing Group | II |
| 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) |
TETRAHYDROFURAN (THF): TECHNICAL DATA SHEET
| Category | Specifications |
|---|---|
| Chemical Name | Tetrahydrofuran |
| CAS No. | 109-99-9 |
| Molecular Formula | C₄H₈O |
| Appearance | Colorless liquid |
| Odor | Ether-like |
| Boiling Point | 66°C |
| Flash Point | -14°C (closed cup) |
| Density (20°C) | 0.89 g/cm³ |
| Vapor Pressure (20°C) | 19.3 kPa |
Key Properties
| Property | Performance Data |
|---|---|
| Solubility | Miscible with water/organic solvents |
| Refractive Index | 1.407 (20°C) |
| Autoignition Temp | 321°C |
| Purity | ≥99.9% (GC) |
Applications
| Industry | Primary Uses |
|---|---|
| Chemical Synthesis | Grignard reactions, polymerization |
| Pharmaceuticals | Solvent for APIs |
| Adhesives | PVC/urethane systems |
| Electronics | Lithium battery electrolytes |
Safety & Handling
| Parameter | Requirements |
|---|---|
| GHS Classification | H225, H302, H319, H335 |
| PPE | Gloves, goggles, explosion-proof ventilation |
| Storage | Nitrogen blanket, <30°C |
References:
- Merck Index (16th Ed.)
- OSHA Standard 1910.1000
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