the material hase xcellenti mpacts trengtha nd abrasionr esistance.
Previously glass-lined vessels can be refurbished using ECTFE.
4.10.18 Fluoroelastomers
Fluoroelastomers (FKM) are fluorine-containing hydrocarbon polymers
with asaturated structure obtainedbypolymerizing fluorinated monomers
sucha sv inylidenefl uoride, hexafluoropropene, and tetrafluoroethylene.
Theya re manufactured undert rade names such as Viton by DuPont,
TechnoflonbyA usimont, and Fluorel by 3M.
TheFKM have been approved by theU.S.Foodand Drug Administration for
useinr epeatedcontact with food products.More detailsare availablei nthe
FederalR egister (Vol.3 3, No.5 ,J anuary 9, 1968), Part 121—Food Additives,
Subpart F—FoodA dditives Resultingf romC ontact with Containers or
Equipmenta nd Food AdditivesO therwise AffectingF ood-Rubber Articles
Intended forRepeatedUse.
TABLE 4.19 Continued
Maximum Te mperature
Chemical
8 F
8 C
Sodium carbonate
300
149
Sodium chloride
300
149
Sodium hydroxide, 10%
230
110
Sodium hydroxide, 50%
230
110
Sodium hypochlorite, 20%
300
149
Sodium hypochlorite, conc.
300
149
Sodium sulfide, to 50%
300
149
Stannic chloride
300
149
Stannouschloride
300
149
Sulfuric acid, 10%
300
149
Sulfuric acid, 50%
300
149
Sulfuric acid, 70%
300
149
Sulfuric acid. 90%
300
149
Sulfuric acid, 98%
300
149
Sulfuric acid, 100%
300
149
Sulfuric acid, fuming
120
49
Sulfurous acid
210
99
Thionyl chloride
210
99
Toluene
250
121
Trichloroacetic acid
210
99
Zinc chloride
300
149
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.
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
142
CAT8247—CHAPTER 4—17/10/2006—14:35—SRIDHAR—XML MODEL B–pp. 69–174
Previously glass-lined vessels can be refurbished using ECTFE.
4.10.18 Fluoroelastomers
Fluoroelastomers (FKM) are fluorine-containing hydrocarbon polymers
with asaturated structure obtainedbypolymerizing fluorinated monomers
sucha sv inylidenefl uoride, hexafluoropropene, and tetrafluoroethylene.
Theya re manufactured undert rade names such as Viton by DuPont,
TechnoflonbyA usimont, and Fluorel by 3M.
TheFKM have been approved by theU.S.Foodand Drug Administration for
useinr epeatedcontact with food products.More detailsare availablei nthe
FederalR egister (Vol.3 3, No.5 ,J anuary 9, 1968), Part 121—Food Additives,
Subpart F—FoodA dditives Resultingf romC ontact with Containers or
Equipmenta nd Food AdditivesO therwise AffectingF ood-Rubber Articles
Intended forRepeatedUse.
TABLE 4.19 Continued
Maximum Te mperature
Chemical
8 F
8 C
Sodium carbonate
300
149
Sodium chloride
300
149
Sodium hydroxide, 10%
230
110
Sodium hydroxide, 50%
230
110
Sodium hypochlorite, 20%
300
149
Sodium hypochlorite, conc.
300
149
Sodium sulfide, to 50%
300
149
Stannic chloride
300
149
Stannouschloride
300
149
Sulfuric acid, 10%
300
149
Sulfuric acid, 50%
300
149
Sulfuric acid, 70%
300
149
Sulfuric acid. 90%
300
149
Sulfuric acid, 98%
300
149
Sulfuric acid, 100%
300
149
Sulfuric acid, fuming
120
49
Sulfurous acid
210
99
Thionyl chloride
210
99
Toluene
250
121
Trichloroacetic acid
210
99
Zinc chloride
300
149
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.
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
142
CAT8247—CHAPTER 4—17/10/2006—14:35—SRIDHAR—XML MODEL B–pp. 69–174