To provide maximum corrosion resistance at wo component phenolic/
epoxy novolac coating can be used. The phenolic coating provides resistance
to high concentrations of acids, particularly to sulfuric acida te levated
temperatures, Refer to Table1 0.13 for the compatibility of phenolic with
selected corrodents.
TABLE 10.13
Compatibility of Phenolic with Selected Corrodents
Maximum Te mperature
Chemical
8 F
8 C
Acetic acid, 10%
212
100
Acetic acid, glacial
70
21
Acetic anhydride7 02 1
Acetone
XX
Aluminum sulfate
300
149
Ammonium carbonate
90
32
Ammonium chloride, to sat.
80
27
Ammonium hydroxide, 25%
XX
Ammonium nitrate
160
71
Ammonium sulfate
300
149
Aniline
XX
Benzene
160
71
Butyl acetate
XX
Calcium chloride
300
149
Calcium hypochlorite
XX
Carbonic acid
200
93
Chromic acid
XX
Citric acid, conc.
160
71
Copper sulfate
300
149
Hydrobromic acid, to 50%
200
93
Hydrochloric acid, to 38%
300
149
Hydrofluoric acid
XX
Lactic acid, 25%
160
71
Methyl isobutyl ketone
160
71
Muriatic acid
300
149
Nitric acid
XX
Phenol
XX
Phosphoric acid, 50–80%
212
100
Sodium chloride
300
149
Sodium hydroxide
XX
Sodium hypochlorite
XX
Sulfuric acid, 10%
250
121
Sulfuric acid, 50%
250
121
Sulfuric acid, 70%
200
93
Sulfuric acid, 90%
70
21
Sulfuric acid, 98%
XX
Sulfurous acid
80
27
The chemicals listed are in the pure state or in as aturated solution unless
otherwise indicated. Compatibility is shown to the maximum allowable
temperaturethat data is available for.Incompatibilityi sshown by an X.
Coatings for Concrete
531
CAT8247—CHAPTER 10—6/10/2006—12:52—SRIDHAR—XML MODEL B–pp. 515–532