Dielectric constant of liquids, gases and solids (Table)

In the table are given the values of the dielectric constant of some solids, liquids and gases for constant electric fields or for small frequencies, when the wavelength is infinitely large. Gases are assumed to be at atmospheric pressure; the temperature, including the values of ε indicated.

ε - dielectric constant

Substance

t (°C)

ε

The dielectric constant of solids and liquids

Diamond

18

16.5

Amyl acetate

18

4.8

Aniline

18

7.3

Apatite

18

8.5

Asphalt

18

2.7

Acetone

20

21.5

Bakelite

18

3-5

Canadian Balsam

18

2.7

Benzene

18

2.3

Bromine

5

3.1

Paper

18

2-2,5

Water

18

80.4

Beeswax

18

2.5-3.0

Getinaks

18

3.5-5.0

Glycerol

15

39.1

Tree

18

2.2-3.7

Titanium dioxide

18

40-80

Rock salt

20

5.6

Quartz Crystal

18

4.5

Fused Silica

18

3.5-4.1

Ivory

18

6.9

Xylene (meta)

18

2.4

Ice

-18

3.2

Castor oil

10.9

4.6

Olive oil

21

3.2

Paraffin oil

20

4.7

Transformer oil

18

2.2-2.5

Marble

18

8.3

Oil, kerosene

21

2.1

Nitrobenzene

18

36.4

Paraffin

20

2.0-2.5

Rutile _ | _ axis

20

86

Rutile ||axis

20

170

Sulfur

18

3,6-4,3

Carbon bisulfide

20

2.6

Silvin

18

4.9

Turpentine

20

2.2

Mica

18

5,7-7,0

Special ceramic materials containing BO and TiO2

18

1000-10000

Methyl alcohol

13.4

35.4

Ethanol

14.7

26.8

Glass mirror

18

6-7

Glass crowns

18

5-9

Flint Glass

18

7-10

Barium titanate

20

1200

Toluene

14.4

2.4

Tourmaline ||axis

18

6.0

Porcelain

18

5,0-6,8

Chloroform

22

5.2

Celluloid

18

4.1

Carbon tetrachloride

18

2.2

Shellac

18

3.1-3.7

Ebonite

18

2.5-2.8

Ethyl Ether

18

4.3

Amber

18

2.7-2.9

The dielectric constant of gases 

Nitrogen

0

1.000606

20

1.000581

Hydrogen

0

1.000264

20

1.000273

Air

0

1.000590

19

1.000576

Helium

0

1.000068

Oxygen

0

1.000524

Methane

0

1.000953

Carbon monoxide

0

1.000690

Carbon dioxide

0

1.000946


Share the link with your friends:

Home   |   About   |   Contact 

infotables.com © 2017 - 2020