dimethylamine). As with other fluorocarbons, Halar will be attacked by
metallic sodiuma nd potassium. Refer to Table 4.20 for the compatibility of
ECTFEwiths elected corrodents and Reference [1] for additional listings.
Coating thickness range from 0.010 to 0.040 in. with at emperature
range from cryogenic to 3208 F(1608 C). In addition to its corrosion resistance,
TABLE 4.18 Continued
Maximum Te mperature
Chemical
8 F
8 C
Perchloric acid, 10%
450
232
Perchloric acid, 70%
450
232
Phenol
a
450
232
Phosphoric acid, 50–80%
450
232
Picric acid
450
232
Potassium bromide, 30%
450
232
Salicylic acid
450
232
Sodium carbonate
450
232
Sodium chloride
450
232
Sodium hydroxide, 10%
450
232
Sodium hydroxide, 50%
450
232
Sodium hydroxide, conc.
450
232
Sodium hypochlorite, 20%
450
232
Sodium hypochlorite, conc.
450
232
Sodium sulfide, to 50%
450
232
Stannic chloride
450
232
Stannouschloride
450
232
Sulfuric acid, 10%
450
232
Sulfuric acid, 50%
450
232
Sulfuric acid, 70%
450
232
Sulfuric acid, 90%
450
232
Sulfuric acid, 98%
450
232
Sulfuric acid, 100%
450
232
Sulfurous acid
450
232
Sulfurous acid, fuming
a
450
232
Thionyl chloride
450
232
Toluene
a
450
232
Trichloroacetic acid
450
232
White liquor
450
232
Zinc chloride
c
450
232
The chemicals listed are in the pures tate or in as aturated solution
unless otherwise indicated. Compatibility is shown to the maximum
allowable temperaturefor which data is available. Incompatibility is
shown by an X. Ablank space indicates that the data is unavailable.
a Material will permeate.
b Material will cause stress cracking.
c Material will be absorbed.
Source:F rom P. A. Schweitzer.2 004. CorrosionR esistanceT ables,
Vo ls. 1–4, 5th ed., New York: Marcel Dekker.
Corrosion of Linings and Coatings
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