Tetrahydrofuran (THF), CAS 109-99-9, is a five-membered cyclic ether with a molecular weight of 72.11 g/mol, normal boiling point 66.0 °C at 101.3 kPa, flash point −14.5 °C closed cup, and density 0.886 g/cm3 at 20 °C. In PTMEG production, THF is not simply an inert carrier; it is the...
Tetrahydrofuran (THF) Factory Direct: Contract & Liability Comparison vs Trader Supply Tetrahydrofuran (THF, CAS 109-99-9, EC 203-726-8) is a cyclic ether with molecular mass 72.11 g/mol, boiling range 65.5–67.0 °C at 101.3 kPa, density 0.8892 g/cm³ at 20 °C by ASTM D4052, vapor pressure 19.3 kPa at 20 °C, and...
THF Wholesale & Bulk Pricing: Drum, IBC & ISO Tank Economics Tetrahydrofuran (THF, CAS 109-99-9, EC 203-726-8, molar mass 72.11 g/mol) is a cyclic ether with density 0.889 g/cm³ at 20 °C under ASTM D4052-22, vapor pressure 19.3 kPa at 20 °C, boiling point 66 °C, and flash point -14.5...
Buy THF Direct: How to Place a First Order Without Getting Burned Tetrahydrofuran (THF, CAS 109-99-9) is a saturated five-membered cyclic ether with the molecular formula C4H8O, a molar mass of 72.11 g·mol⁻¹, a closed-cup flash point of −14.5 °C, and a normal boiling point of 66 °C at 101.3...
Tetrahydrofuran (THF, CAS 109-99-9) is a Class 3 flammable solvent with a closed-cup flash point of −14 °C, boiling point of 66 °C at 101.325 kPa, lower and upper explosive limits of 1.8 vol% and 11.8 vol%, and a liquid density of 0.889 g/cm³ at 20 °C. The procurement evaluation...
Tetrahydrofuran (THF) is recovered as a distillate from pharmaceutical reaction liquors, polyvinyl chloride solution polymerization reactor washes, polyurethane synthesis batches, and flexographic printing-ink solvent recycling systems. The THF Solvent Recovery Cost Calculator: When Recycling Beats Buying is constructed around a mass-balance boundary that includes stabilizer top-up, waste heel disposal, condenser...
A THF Sample Request: What You Get, How It Ships & What to Test First will normally follow the controlled configuration described below. A working sample of inhibited tetrahydrofuran (CAS 109-99-9) is supplied in an amber glass bottle, typically 250 mL or 500 mL, fitted with a PTFE-lined polypropylene closure...
Tetrahydrofuran (THF, CAS 109-99-9) is a saturated cyclic ether with molecular formula C4H8O and molar mass 72.11 g/mol. At 20 °C, density is 0.889 g/cm³, refractive index is 1.4073, and dynamic viscosity is 0.48 mPa·s. The atmospheric boiling point is 66 °C at 101.3 kPa, the closed-cup flash point is...
The THF Container Loading Calculator: Drums, IBCs & ISO Tanks provides net-mass, outage, and maximum filling-degree calculation for tetrahydrofuran (CAS 109-99-9, UN 2056). Tetrahydrofuran is a cyclic aliphatic ether with molecular mass 72.11 g/mol, density 0.8892 g/cm³ at 20°C, vapour pressure 19.3 kPa at 20°C, and normal boiling point 66°C...
THF Manufacturer vs Trading Company: 9 Checks Before You Wire a Deposit Tetrahydrofuran (THF, CAS 109-99-9, EC 203-726-8) is a saturated cyclic ether with molecular formula C4H8O and molecular weight 72.11 g/mol. It boils at 66 °C at 101.3 kPa and has a closed-cup flash point of −14.5 °C. Under...
Tetrahydrofuran Plant Audit Checklist: 24 Points for a BDO-Dehydrogenation Line Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic ether with molar mass 72.11 g/mol, normal boiling point 66 °C at 101.325 kPa, and closed-cup flash point -14.5 °C. The vapour forms flammable mixtures between 1.8 vol% and 11.8 vol% in air....
Tetrahydrofuran (THF), CAS 109-99-9, is a cyclic ether with a closed-cup flash point of -14 °C, a normal boiling point of 66 °C, and a vapor pressure near 19.3 kPa at 20 °C. It is both a Class 3 flammable liquid under transport regulations and a peroxide-forming solvent that requires...
7 Public Records to Verify a THF Supplier Yourself Tetrahydrofuran (THF, CAS 109-99-9, EC 203-726-8) is a saturated cyclic ether with a molecular weight of 72.11 g/mol, normal boiling point 66 °C, closed-cup flash point -14 °C, and liquid density near 0.889 g/cm³ at 20 °C. The material is supplied...
Tetrahydrofuran (THF, CAS 109-99-9) is a saturated five-membered cyclic ether with a molar mass of 72.11 g/mol, a normal boiling point of 66 °C at 101.3 kPa, a closed-cup flash point of -14.5 °C, and complete miscibility with water and most organic solvents. The release specification for bulk THF is...
Tetrahydrofuran (THF, CAS 109-99-9) is a saturated five-membered cyclic ether with molecular formula C4H8O, molar mass 72.11 g/mol, boiling point 65–66 °C, density 0.889 g/cm³ at 20 °C, vapor pressure 19.3 kPa at 20 °C, and flash point -14 °C. It functions as an aprotic polar solvent in polyvinyl chloride...
Tetrahydrofuran is introduced into process development as a cyclic ether with a normal boiling point of 66 °C at 101.3 kPa, a closed-cup flash point of −14 °C determined by ASTM D93, and a density of 0.889 g/cm³ at 20 °C. The solvent is fully water-miscible, but peroxide accumulation on...
Tetrahydrofuran is assigned UN2056, Class 3, Packing Group II under the IMDG Code, ADR, and 49 CFR. Typical shipments fall under UN packing instruction P001 for drums and the applicable UN IBC instruction for liquids. The liquid density at 20 °C is approximately 0.889 g/cm³; the closed-cup flash point is...
Tetrahydrofuran (THF) moves in commerce under the proper shipping name Tetrahydrofuran, identification number UN 2056, hazard class Class 3, and packing group II. The flash point of inhibited technical-grade THF is normally reported as −14.5 °C to −14.0 °C by ASTM D56 closed-cup testing. The normal boiling point at 101.3...
Tetrahydrofuran (THF) declared under HS code 2932110000 is a saturated five-membered heterocyclic ether with molecular formula C4H8O, CAS Registry Number 109-99-9, and EC Number 203-726-8. The tariff position is governed by Harmonized System heading 29.32, covering heterocyclic compounds with oxygen hetero-atom only, and subheading 2932.11 captures tetrahydrofuran. Classification under General...
THF Suppliers in China: Verified List Criteria & Red Flags Tetrahydrofuran (CAS 109-99-9) is a saturated cyclic ether with molar mass 72.11 g/mol, normal boiling point 66 °C at 101.325 kPa, and closed-cup flash point −14 °C. The substance is classified under Regulation (EC) No 1272/2008 with hazard statements H225,...
Tetrahydrofuran (THF), CAS 109-99-9, is assigned UN 2056, Class 3, Packing Group II. The flash point of the solvent is -14.5 °C under closed-cup conditions, with an initial boiling point of 65–66 °C and a vapour pressure of 19.3 kPa at 20 °C. Because the substance is also classified for...
THF Supplier List: How to Build a 5-Source Qualified Vendor File Tetrahydrofuran (THF, CAS RN 109-99-9, EINECS 203-786-5) is a cyclic aliphatic ether with a normal boiling point of 66 °C at 101.3 kPa, a flash point of −14.2 °C, an auto-ignition temperature of 321 °C, and a lower flammable...
Tetrahydrofuran (THF, CAS 109-99-9) is specified not by a single gas-chromatographic assay but by overlapping quality dimensions that include water, peroxide burden, inhibitor concentration, acidity, non-volatile residue, and metal contamination. A THF Supplier Scorecard: 12 Weighted Criteria You Can Apply Yourself converts these dimensions into a bounded decision tool for...
THF Water Content & Karl Fischer: Why 50 ppm vs 500 ppm Changes Your Reaction Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic ether with a normal boiling point of 66 °C and a density of 0.889 g/mL at 20 °C. Because THF is fully miscible with water and hygroscopic, the...
THF Residual Solvent Limits (ICH Q3C Class 2): What 720 ppm Means for Pharma Buyers Tetrahydrofuran (THF, CAS 109-99-9) is a water-miscible cyclic ether with a boiling point of 66 °C and a vapour pressure of approximately 173 hPa at 20 °C. ICH Q3C(R8) assigns THF to Class 2, the...
THF for Grignard & Organometallic Reactions: Why It Beats Diethyl Ether In organometallic synthesis, tetrahydrofuran (THF, CAS 109-99-9) is selected over diethyl ether (CAS 60-29-7) when the reaction requires a higher dielectric constant, a broader liquid-temperature range, and stronger oxygen-to-metal coordination. THF shows a dielectric constant of 7.58 at 25...
Tetrahydrofuran (THF, CAS 109-99-9, UN 2056) is a cyclic ether with a closed-cup flash point of -14.5 °C, an initial boiling point of 65.0 °C, a vapor pressure of 19.3 kPa at 20 °C, and a density of 0.889 g/cm³ at 20 °C. The lower explosion limit is 1.8 vol%...
Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic aliphatic ether with a normal boiling point of 66 °C, a closed-cup flash point of -14.5 °C, a density of 0.886 g/mL at 20 °C, a vapor pressure of 19.3 kPa at 20 °C, and lower and upper explosion limits of 1.8 vol%...
Tetrahydrofuran (THF), CAS 109-99-9, is a five-membered cyclic aliphatic ether with molecular weight 72.11 g/mol, density 0.889 g/cm³ at 20 °C, normal boiling point 66 °C, and water miscibility that complicates both dehydration and wastewater recovery in continuous process environments. Industrial production routes proceed mainly through acid-catalyzed cyclodehydration of 1,4-butanediol;...
Tetrahydrofuran (THF) Supply Risk Hedge: Dual Sourcing, Safety Stock & Lead Times Tetrahydrofuran (CAS 109-99-9) is a cyclic aliphatic ether with molar mass 72.11 g/mol, normal boiling point 66 °C, and closed-cup flash point -14 °C. Commercial inhibited grades are commonly stabilized with 2,6-di-tert-butyl-4-methylphenol at 100–300 ppm to limit peroxide...
The purity requirements for THF for PTMEG & Spandex are not defined by a single assay value but by a narrow impurity matrix that changes meaning at each downstream step. In a ring-opening polymerisation train, tetrahydrofuran acts as a monomer; water, aldehydes, 2,3-dihydrofuran, and peroxide species compete with propagation or...
Tetrahydrofuran (THF) is assessed in lithium battery electrolyte work as a cyclic ether co-solvent in lithium-sulfur and lithium-metal cells, and as a processing solvent for lithium salt and polymer membrane casting. Its dielectric constant of 7.6 at 25 °C and donor number of approximately 20.0 kcal/mol provide sufficient lithium-ion solvation...
Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic ether with normal boiling point 66 °C at 101.3 kPa, density 0.889 g/cm³ at 20 °C, freezing point -108.5 °C, and closed-cup flash point -14.5 °C. The solvent is fully miscible with water, aprotic, and capable of dissolving many organolithium, Grignard, and complex...
Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic aliphatic ether with a dipole moment of 1.75 D, a dielectric constant of 7.6 at 25 °C, a normal boiling point of 65–66 °C at 101.3 kPa, and a closed-cup flash point of -14.5 °C determined by ASTM D93. Hansen solubility parameters are...
Buying THF in the EU: REACH, CLP Labelling & TARIC 6.5% Duty Tetrahydrofuran (THF, CAS 109-99-9, EC 203-726-8) is a clear, mobile, hygroscopic cyclic ether with a normal boiling point of 65–66 °C, a closed-cup flash point of approximately -14 °C, and a vapour pressure of about 19.3 kPa at...
Tetrahydrofuran (THF; CAS 109-99-9, UN 2056, HS 2932.11) is imported into Southeast Asia as a flammable cyclic ether for use in polyurethane prepolymer dissolution, vinyl resin processing, and reaction media for Grignard and organolithium chemistry. The material has a closed-cup flash point of -14 °C and a normal boiling point...
THF Technical Support: What We Can Help You Solve Before Ordering Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic ether with a molecular weight of 72.11 g/mol, density 0.889 g/mL at 20°C, atmospheric boiling point 65–66°C, and a closed-cup flash point of -14°C. The solvent’s high miscibility with water and its...
A tetrahydrofuran (THF) technical data sheet is not a certificate of analysis. The TDS lists standing release limits that a producer maintains across production lots, while a certificate of analysis reports batch-specific measured results. For a buyer, the TDS review should be read as a risk screen: each printed value...
THF Price Model: BDO Cost Pass-Through & What Drives Your Quote In contract and spot quotations for tetrahydrofuran (THF), the quoted number is not a single market clearing price but a pass-through construct anchored to 1,4-butanediol (BDO) cost, utility recovery, co-product allocation, and specification adders. The underlying chemistry is fixed:...
Tetrahydrofuran (THF) Regulatory Holding and Batch Data in the EU Supply Chain Under Regulation 1907/2006 (REACH), the legal entity holding the THF registration is not automatically the seller of record. In EU-established supply chains, a manufacturer or importer that places THF on the market in quantities at or above 1...
THF Distributor & Agent Programme: Territory Terms Compared Tetrahydrofuran (THF; CAS 109-99-9) has molar mass 72.11 g/mol, density 0.889 g/cm³ at 20 °C, boiling point 66 °C at 101.325 kPa, closed-cup flash point −14.5 °C, and lower/upper flammability limits 2.0%/11.8% by volume. The vapour pressure at 20 °C is approximately...
Tetrahydrofuran (THF; CAS 109-99-9; C4H8O; molecular mass 72.11 g/mol) is a cyclic aliphatic ether with a closed-cup flash point of -14 °C, a boiling range of 65–66 °C at 101.3 kPa, and a vapour pressure of 19.3 kPa at 20 °C. Under CLP (EC) No 1272/2008, the classification applied to...
Who Holds the Compliance Duty? Exporter, Importer & Downstream User for THF Tetrahydrofuran (THF), CAS 109-99-9, EC 203-726-8 and Annex VI Index 603-025-00-0, is classified as Flam. Liq. 2 H225, Acute Tox. 4 H302, Eye Irrit. 2 H319, STOT SE 3 H335 and Carc. 2 H351 under Regulation (EC) No...
Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic aliphatic ether with the molecular formula C4H8O and a molar mass of 72.11 g/mol. Commercial production proceeds predominantly by acid-catalysed dehydration of 1,4-butanediol or by hydrogenation of maleic anhydride to 1,4-butanediol followed by cyclisation. At 20 °C the liquid has a relative density...
The THF Document Package: COA, SDS, TDS, ISO & Dangerous Goods Papers is assembled for each production batch of tetrahydrofuran (CAS 109-99-9, C4H8O). The material is a cyclic aliphatic ether with molar mass 72.11 g/mol, normal boiling point 66 °C at 101.3 kPa, and closed-cup flash point −14 °C. These...
Anhydrous vs Technical THF Grades: Which Grade Does Your Process Actually Need Tetrahydrofuran (THF, CAS 109-99-9) is a saturated cyclic ether with a molar mass of 72.11 g/mol, a normal boiling point of 66 °C, a closed-cup flash point of −14 °C, and a lower explosion limit of 2.0 vol%....
Tetrahydrofuran (THF, CAS 109-99-9) is a water-miscible cyclic ether with a molar mass of 72.11 g/mol and a normal boiling point of 65.0–66.0 °C at 101.3 kPa. Commercial material is commonly stabilised with 100–350 mg/kg of 2,6-di-tert-butyl-4-methylphenol (BHT) to inhibit autoxidation during storage and transport. The analytical control package described...
THF vs DMSO vs NMP: Which Polar Aprotic Solvent Fits Your Reaction Tetrahydrofuran (THF, CAS 109-99-9) is a five-membered cyclic ether used as a polar aprotic medium in organometallic synthesis, pharmaceutical processing, and polymer dissolution. Dimethyl sulfoxide (DMSO, CAS 67-68-5) and N-methyl-2-pyrrolidone (NMP, CAS 872-50-4) serve as the most common...
Where THF Goes: PTMEG, Spandex, TPU, Electrolyte & Pharma Downstream Map Tetrahydrofuran (THF) occupies a technically distinct position in industrial organic chemistry: the same cyclic ether that is polymerised into a polyether diol is also regulated as a residual solvent in pharmaceutical production and evaluated as an aprotic electrolyte component...
Incoterms for THF & Payment Terms: Risk Transfer Compared Tetrahydrofuran (THF, CAS 109-99-9, IUPAC oxolane) is a cyclic ether with a boiling point of 65–66 °C at 101.3 kPa and density of 0.889 g/cm³ at 20 °C. Its closed-cup flash point of -14.5 °C determined under ISO 2719 and classification...
Tetrahydrofuran (THF) as a coating & adhesive solvent: evaporation rate and formulation fit is specified through four measurements: boiling point, vapor pressure, relative evaporation rate, and Hansen solubility parameters. The solvent is a cyclic aliphatic ether with a normal boiling point of 65–66 °C, a vapor pressure of 19.3 kPa...
Before You Order THF: 14 Answers on MOQ, Lead Time & Documents Tetrahydrofuran (THF, CAS 109-99-9, UN 2056) is a water-miscible cyclic ether with a normal boiling point of 65–66 °C at 101.325 kPa and a closed-cup flash point of −14 °C. The primary industrial derivative is polytetramethylene ether glycol...
Industrial tetrahydrofuran (THF) supplied as an inhibited solvent is governed by a specification envelope covering purity, water, peroxide, and inhibitor concentration. The THF Quality Complaint Process: Batch Traceability, Retest & Claim Path applies when a receiving site reports an out-of-specification result after container opening or during bulk unloading. A complaint...
Tetrahydrofuran (THF) is handled as a Class IB flammable liquid under NFPA 30, with a closed-cup flash point of -14 °C, a boiling range of 65.0–66.0 °C at 101.3 kPa, and an autoignition temperature of 321 °C. The compound is a saturated cyclic ether with CAS 109-99-9, EINECS 203-726-8, molar...
Tetrahydrofuran (THF), CAS 109-99-9, is a saturated cyclic ether with molar mass 72.11 g/mol, a normal boiling point of 65–67 °C, and a density of 0.886–0.889 g/cm³ at 20 °C. It is used as a polar aprotic solvent in PVC solution polymerisation, polyurethane coating manufacture, and organometallic reaction chemistry. The...
Tetrahydrofuran (THF) Recovery & Recycling: Distillation Limits, Peroxide Control & Cost Model Recovered tetrahydrofuran (THF, CAS 109-99-9) is returned to reaction solvent service only when final water content, peroxide inventory, and non-volatile residue are verified against a defined specification. THF’s normal boiling point is 66 °C, and its flash point...
Tetrahydrofuran (99.9 wt% minimum) is a cyclic ether with a normal boiling point of 66 °C, a closed-cup flash point near -14.5 °C, and a vapour pressure of approximately 19.3 kPa at 20 °C. Its flammability range in air is reported near 2.0–11.8 vol% and can be determined by ASTM...
Remote evaluation of a THF production asset requires reading capacity not from a single nameplate line item but from a mass-balance-consistent set of equipment datasheets, process flow diagrams, utility logs, quality records, and historian trends. The phrase THF Mill & Plant Scale: How to Read Capacity Without Visiting defines an...
Bio-based 2-MeTHF: When It Actually Pays to Switch from THF Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic ether with a normal boiling point of 66 °C at 101.325 kPa and a density of 0.889 g/mL at 20 °C. The solvent is fully miscible with water and has a closed-cup flash...
THF Anti-Dumping & Trade Remedies: What Buyers Should Watch Tetrahydrofuran (THF, CAS 109-99-9, HS 2932.11.00) enters global commerce as technical-grade solvent, dehydration-grade reaction medium, and high-purity monomer feedstock for poly(tetramethylene ether) glycol. Its handling envelope includes a normal boiling point of 66 °C and a closed-cup flash point of -14.5...
Tetrahydrofuran (THF) Market in 2026: Capacity, Supply & the PTMEG Demand Pull Tetrahydrofuran (THF, CAS 109-99-9) enters the 2026 planning cycle as a bifurcated industrial solvent and monomer feedstock. The capacity debate is not dominated by nameplate solvent distillation alone; it is driven by integrated 1,4-butanediol (BDO) dehydration trains that...
Middle East THF Supply Chains: Where the Next Demand Comes From Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic aliphatic ether with a molar mass of 72.11 g/mol, normal boiling point of 66 °C, melting point of -108.5 °C, density of 0.8892 g/cm³ at 20 °C, closed-cup flash point of -14.5...
Tetrahydrofuran (THF, CAS 109-99-9) is a cyclic aliphatic ether with a normal boiling point of 66 °C, flash point of -14 °C, and vapour pressure of approximately 19.3 kPa at 20 °C. Industrial production proceeds primarily by acid-catalysed cyclodehydration of 1,4-butanediol. Within the sustainable solvent landscape described by Green Solvent...
