Learn about formula, units, and factors affecting dielectric constant here. tetrahydrofuran (THF) C 4 H 8 O : 72.106 : 65 -108.4 : 0.8833 : soluble²: 7.52 … : Untersuchung der Wechselwirkung im System N-Methylformamid - Tetrahydrofuran. : Dielectric Constant Against Temperature for 43 Liquids. In the presence of strong acids, THF converts to a linear polymer called poly(tetramethylene ether) glycol (PTMEG), also known as polytetramethylene oxide (PTMO): 1 Solventmp bpD 4 20 n D 20 ε R D µ Acetic acid 17 118 1.049 1.3716 6.15 12.9 1.68 Acetone -95 56 0.788 1.3587 20.7 16.2 2.85 Acetonitrile -44 82 0.782 1.3441 37.5 11.1 3.45 For more data or any further information please search the DDB or contact DDBST. The relative permittivity, or dielectric constant, of a material is its permittivity expressed as a … ; Gritsan L.D. ; Eckert C.A. The value of the dielectric constant at room temperature (25 °C, or 77 °F) is 1.00059 for air, 2.25 for paraffin, 78.2 for water, and about 2,000 for barium titanate (BaTiO 3) when the electric field is applied perpendicularly to the principal axis of the crystal. Solvents are generally classified by the polarity, and considered either polar or non-polar, as indicated by the dielectric constant. Zh.Obshch.Khim. 89 (1993) 3955-3958, Jatkar S.K.K. J.Phys.Chem. ; Singh J.; Ludwig R.; Zeidler M.D. : The Effect of Pressure on the Density and Dielectric Constant of Polar Solvents. J.Chem.Thermodyn. 18 (1986) 221-234, Nikolaichuk A.G.; Podolyanko V.A. ; Deshpande C.M. 74 (1970) 3014-3020. Search the DDB for all data of Tetrahydrofuran, Shkodin A.M.; Podolyanko V.A. Nonetheless, guidelines have been created to make it easier. J.Chem.Soc.Faraday Trans. The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition. Vestn.Khar'k.Univ. ; Surov Yu.N. : Nuclear Magnetic Resonance Relaxation, Permittivity, Viscosity and Ultrasonic Velocity Measurements in Binary Mixtures of Methanol and Tetrahydrofuran. : Physico-chemical properties of binary solvent ethylene glycol-tetrahydrofuran. 37 (1960) 1-10, Schornack L.G. However, as with many properties, the polarity is a continuous scale, and the correct question is not "is it polar or non-polar" but "how polar is it." It is also known as electric permittivity. The highest THF value in the blood was at 1 hr post-application (about 200 mg/kg). 48 (1978) 2764-2770, Gill D.S. Dielectric Constant [-] State Reference; 218.00 10.40000: Liquid: 2: 237.00 9.80000: Liquid: … THF concentrations in adipose tissue and kidneys were 1.3-1.4 times higher than in blood; levels in liver, brain, spleen, and muscle were similar to blood. : Dielectric Constant and Dipole Moment: Ethers, Aldehydes and Chloro COmpounds. Dielectric constant is defined as the insulating material that can store charge when it is placed between two metallic plates. (1974) 32-35, Gee N.; Shinsaka K.; Dodelet J.-P.; Freeman G.R. J.Indian Chem.Soc. The biological half-life in blood was 5 hr. The data represent a small sub list of all available data in the Dortmund Data Bank.