TABLE 6.24 Continued
Maximum Te mperature
Chemical
8 F
8 C
Sodium hypochlorite, conc.
140
60
Sodium sulfide, to 50%
140
60
Stannic chloride
140
60
Stannousc hloride1 40
60
Sulfuric acid, 10%
140
60
Sulfuric acid, 50%
140
60
Sulfuric acid, 70%
80
27
Sulfuric acid, 90%
XX
Sulfuric acid, 98%
XX
Sulfuric acid, 100%
XX
Sulfuric acid, fuming
XX
Sulfurous acid
140
60
Thionyl chloride
XX
Toluene
XX
Trichloroacetic acid
80
27
Zinc chloride
140
60
The chemicals listed are in the pure state or in saturated solution unless otherwise indicated.
Compatibilty is shown to the maximum allowable temperaturef or which data is available.
Incompatibility is shown by an X.
Source:F romP .A. Schweitzer.2 004. Corrosion Resistance Ta bles,V ols. 1–4, 5th ed., New York:
Marcel Dekker.
TABLE 6.25
Vapor Permeation PTFE
Permeation(g100 in.
2 /24 h/mil) at
Gases
738 F(238 C)
868 F(308 C)
Carbon dioxide
0.66
Helium
0.22
Hydrogen chloride, anhy.
! 0.01
Nitrogen
0.11
Acetophenone
0.56
Benzene
0.36
0.80
Carbon tetrachloride
0.06
Ethyl alcohol
0.13
Hydrochloric acid, 20%
! 0.01
Piperdine
0.07
Sodium hydroxide, 50%
5 ! 10
K 5
Sulfuric acid, 98%
1.8! 10
K 5
Sheet Linings
375
CAT8247—CHAPTER 6—6/10/2006—12:31—SRIDHAR—XML MODEL B–pp. 287–402