Polytetrahydrofuran - Materials / Alfa Chemistry

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Polytetrahydrofuran

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Catalog Number

ACMA00017154

Product Name

Polytetrahydrofuran

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

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