5.154		SECTION 5
TABLE 5.26 Thermal Conductivity of Various Solids
All values of thermal conductivity,	k , are in millijoules cm		1	1	1	. To convert to mW · m		1	1	m, divide
				· s	· K				· K
values by 10. For values in millicalories, divide by 4.184.
	Substance					t, C	k
Asphalt					20		7.447
Basalt						20	21.76
Bauxite					600		5.56
Boiler scale					66		13.1
Brick, common					20		6.3
Blotting paper					20		0.628
Cardboard					20		2.1
Cement, Portland					90		2.97
Chalk						20	9.2
Chemical elements,	see	Table 4.1
Coal						0	1.69
Concrete					20		9.2
Cork, sp. grav.	0.2					30	0.54
Cork meal					100		0.556
Cotton, sp. grav.	0.081					0	0.569
Diatomaceous earth					20		0.54
Ebonite						0	1.58
Eiderdown					20		0.046
Feathers (with air)					9		0.238
Feldspar						20	23.4
Felt (dark gray)						40	0.623
Fire brick						20	4.6
Flannel						60	0.148
Flint						20	10.0
Glass, crown					12.5		6.82
flint						12.5	5.98
Jena						22	9.50
quartz						0	13.89
						100	19.12
soda						20	7.1
						100	7.5
Granite						20	34.2
Graphite, sp. grav.	1.58					50	441.4
Graphite powder, sp. grav.		0.7				40	11.92
Gypsum						0	13.0
Horse hair, sp. grav.	0.172					20	0.510
Ice							23.8
Leather, cowhide					84		1.76
Linen						20	0.879
Magnesia brick					20		11.3
						1130	30.1
Marble, white							32.6
Mica						41	3.60
Naphthalene					0		3.77
Paper						20	1.3
Paraffin						0	2.88
Plaster of Paris					20		2.93
Porcelain					95		10.38
Quartz, parallel to axis					0		136.0
						100	90.0