Tetrahydrofuran - Materials / Alfa Chemistry

NAVIGATION

Tetrahydrofuran

PRICE INQUIRY

Catalog Number

ACMA00017198

Product Name

Tetrahydrofuran

Category

Polymers

Description

Tetrahydrofuran appears as a clear colorless liquid with an ethereal odor. Less dense than water. Flash point 6°F. Vapors are heavier than air.;Liquid;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.;Colorless liquid with an ether-like odor.;Colorless liquid with an ether-like odor.

IUPAC Name

oxolane

Molecular Weight

72.11g/mol

Molecular Formula

C4H8O;(CH2)3CH₂O;C4H8O;C4H8O

Canonical SMILES

C1CCOC1

InChI

InChI=1S/C4H8O/c1-2-4-5-3-1/h1-4H2

InChI Key

WYURNTSHIVDZCO-UHFFFAOYSA-N

Boiling Point

151 °F at 760 mm Hg (NTP, 1992);65.0 °C;65 °C;66 °C;151°F;151°F

Melting Point

-163.3 °F (NTP, 1992);-108.3 °C;-108.44 °C;-108.3°C;-108.5 °C;-163.3°F;-163°F

Flash Point

6 °F (NTP, 1992);6 °F (closed cup); -4 °F (open cup);-14.5 °C (closed cup);-14.5 °C c.c.;6°F;6°F

Density

0.888 at 68 °F (USCG, 1999);0.8833 g/cu cm at 25 °C;Relative density (water = 1): 0.89;0.89;0.89

Solubility

greater than or equal to 100 mg/mL at 68° F (NTP, 1992);13.87 M;Miscible with alcohols, ketones, esters, hydrocarbons, and ethers.;Very soluble in acetone, benzene, ether, ethanol, and chloroform;30% IN WATER AT 25 °C;Miscible in water at 25 °C;1000.0 mg/mL;Solubility in water: freely soluble;Miscible

Application

Tetrahydrofuran (THF) serves as a versatile industrial solvent renowned for its exceptional properties, facilitating a broad array of applications. Of particular note is DuPont THF, distinguished by its purity of over 99.9% and stabilized with a minor addition of butylated hydroxytoluene (BHT) as an antioxidant. As a cycloaliphatic ether, THF is acclaimed for its efficacy in dissolving high molecular weight polymers like polyvinyl chloride (PVC) and various vinyl copolymers, making it indispensable in producing polymer solutions for automotive upholstery coatings, audio tape coatings, and waterproof barriers. THF is predominantly used in the production of polytetramethylene ether glycol, a crucial component in elastomeric fibers such as spandex, and in polyurethane and polyester elastomers for products like artificial leather and skateboard wheels. Additionally, the solvent supports the synthesis of consumer and industrial chemicals, particularly in agriculture and pharmaceuticals, where its ability to form complexes with inorganic and organic compounds enhances chemical reactions and catalysis. Its applications extend to solvent cleaning and adhesive formulations for plastics and leather. While THF is naturally present in certain foods, its industrial deployment is carefully managed to minimize environmental and human exposure risks.

Color/Form

Colorless, mobile liquid;Water-white liquid;Colorless liquid

Complexity

22.8

Corrosivity

Tetrahydrofuran will attack some forms of plastics, rubber, and coatings.

Covalently-Bonded Unit Count

EC Number

216-898-4;203-726-8;607-472-2

Exact Mass

72.057515g/mol

Formal Charge

Heat of Vaporization

180 BTU/lb= 98.1 cal/g= 4.1X10+5 J/kg

Heavy Atom Count

ICSC Number

0578

Log P

0.46 (LogP);log Kow = 0.46;0.46;0.46 (estimated)

MeSH Entry Terms

tetrahydrofuran

Monoisotopic Mass

72.057515g/mol

NSC Number

57858

Odor

Ether-like odor;FAINT FRUITY ODOR

Other Experimental

CONVERSION FACTOR: 1 PPM = 2.94 MG/CU M; 1 MG/L = 340 PPM;RATIO OF SPECIFIC HEATS OF VAPOR (GAS): (EST) 1.083;Saturated liquid density: 55.230 lb/cu ft; saturated vapor pressure: 2.913 lb/sq in; saturated vapor density: 0.03660 lb/cu ft (all at 75 °F);Liquid heat capacity: 0.401 BTU/lb-F at 70 °F;Ideal gas heat capacity: 0.375 BTU/lb-F at 100 °F;Dielectric constant: 7.4 at 25 °C;Electrical conductivity: 1.5X10-8 mohm/cm at 25 °C;Dipole moment: 1.75 Debyes at 25 °C;Enthalpy of formation: -51.67 kcal/mole (liquid);Enthalpy of sublimation at 298 K: 7.65 kcal/mole;Critical volume: 224 cu cm/mole;Vapor pressure = 0.06 atm at 0 °C, 0.11 atm at 10 °C, 0.173 atm at 20 °C, 0.26 atm at 30 °C;Henry's Law constant = 7.05X10-5 atm-cu m/mole at 25 °C;Hydroxyl radical reaction rate constant = 1.61X10-11 cu cm/molecule-sec at 25 °C;Nitrate radical reaction rate constant = 4.88X10-15 cu cm/molecule sec at 25 °C

Refractive Index

Index of refraction: 1.4050 at 20 °C/D

Rotatable Bond Count

RTECS Number

LU5950000

Stability

Tetrahydrofuran will auto-oxidize in the presence of light & O2 to form resinous products that color water from pink to brown at conc above 100-250 mg/l.;May form, organic peroxides when exposed to air or light but usually inhibited against peroxide formation.;Upon contact with air, THF may decompose into explosive peroxides & carbon monoxide.

UNII

3N8FZZ6PY4

UN Number

2056;2056;2056;2056;2056

Vapor Density

2.5 (NTP, 1992) (Relative to Air);2.5 (Air = 1);Relative vapor density (air = 1): 2.5;2.5

Vapor Pressure

114 mm Hg at 59 °F ; 145 mm Hg at 68° F (NTP, 1992);162.22 mmHg;1.62X10+2 mm Hg at 25 °C;Vapor pressure, kPa at 20 °C: 19.3;132 mmHg;132 mmHg

Viscosity

0.53 cP at 20 °C;0.5 mPa*s at 20 °C

XLogP3

0.5