Technical Information

DuPont Tefzel ™

®

fluoropolymer resin

Chemical Use Temperature Guide

Chemical Resistance Guide

Tefzel® … Tough for Abrasive Service

Table 1 lists over 450 chemicals whose corrosive characteristics create problems which can often be solved by specifying Tefzel® fluoropolymer. The maximum use temperature for each chemical service listed is suggested as a guide only.

Tefzel® fluoropolymer resin is a proven performer in the chemical and petrochemical processing industries. It has gained notable recognition for its unique properties and design versatility which are helping to solve some of the industry’s toughest materials problems in process equipment and components.

Not all chemicals listed have been tested in a DuPont laboratory. This guide is based on selective laboratory tests of representative chemicals; field applications and experience; and engineering judgments as to the suitability of Tefzel® in these chemical environments.

Like DuPont’s family of Teflon® fluoropolymer resins, Tefzel® provides excellent resistance to attack by chemicals and solvents which can cause rapid deterioration of other plastics and all but the most costly metal alloys.

Table 1 lists chemicals and the “upper suggested use temperatures” for organic and inorganic chemicals and plating solutions. The temperature ratings, especially for inorganic chemicals, apply to aqueous and nonaqueous systems. It is recommended that tests be conducted under actual or simulated use conditions wherever possible to determine suitability of Tefzel® or any other material for a specific application. It is also suggested that the equipment fabricator be consulted for in-use service recommendations.

Tefzel® is inert to strong mineral acids, inorganic bases, halogens and metal salt solutions. Even carboxylic acids, anhydrides, aromatic and aliphatic hydrocarbons, alcohols, aldehydes, ketones, ethers, esters, chlorocarbons and classic polymer solvents have little effect on Tefzel®. Very strong oxidizing acids near their boiling points, such as nitric at high concentration, will however affect Tefzel® in varying degrees. So will strong organic bases such as amines and sulfonic acids. In addition to its chemical resistance, Tefzel® has excellent mechanical strength, stiffness and abrasion resistance. This may be an important consideration for process applications where abrasive slurries often accelerate wear and degradation of alternative materials. Tefzel® can also be reinforced with glass fibers to increase the flexural modulus to 950,000 psi/6,550 MPa.

Representative Compatibility Data The data presented in Table 2 show the effects of various representative chemicals on the properties of Tefzel® as tested in DuPont laboratories.

Tefzel® has a broad continuous use temperature range from –150° to 300°F (–100° to 150°C). Specific temperature ratings vary with equipment design, thus it is important to consult with component manufacturers for in-use service recommendations.

The DuPont Oval Logo, DuPont™, The miracles of science™, and Tefzel® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.

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Table 1 Chemical Compatibility Data on DuPont™ Tefzel® (Based on Tests of Representative Materials and Engineering Judgment)

Chemical

A Acetaldehyde Acetamide Acetic Acid (50%) Acetic Acid (Glacial) Acetic Anhydride Acetone Acetone (50% H2O) Acetonitrile Acetophenone Acetylchloride Acetylene Acetylene Tetrabromide Acetylene Tetrachloride Acrylonitrile Adipic Acid Air Allyl Alcohol Allyl Chloride Aluminum Ammonium Sulfate Aluminum Chloride Aluminum Fluoride Aluminum Hydroxide Aluminum Nitrate Aluminum Oxychloride Aluminum Potassium Sulfate Amino Acids (H2O) Ammonia (Anhydrous) Ammonia (Aqueous 30%) Ammonium Bifluoride Ammonium Bromide (50%) Ammonium Carbonate Ammonium Chloride Ammonium Dichromate Ammonium Fluoride Ammonium Hydroxide Ammonium Nitrate (Conc.) Ammonium Perchlorate Ammonium Persulfate Ammonium Phosphate Ammonium Sulfate Ammonium Sulfide Ammonium Thiocyanate Amyl Acetate Amyl Alcohol Amyl Chloride Aniline Aniline Hydrochloride (10%) Anthraquinone Anthraquinone-Sulfonic Acid Antimony Trichloride Aqua Regia Arsenic Acid

B Barium Carbonate Barium Chloride Barium Hydroxide

Maximum Use Temperature °F °C 200 250 250 230 300 150 150 150 300 150 250 300 300 150 275 300 212 212 300 300 300 300 300 300 300 212 300 230 300 275 300 300 275 300 300 230 275 150 300 300 300 300 250 300 300 230 150 275 275 212 212 300

95 120 120 110 150 65 65 65 150 65 120 150 150 65 135 150 100 100 150 150 150 150 150 150 150 100 150 110 150 135 150 150 135 150 150 110 135 65 150 150 150 150 120 150 150 110 65 135 135 100 100 150

300 300 300

150 150 150

Chemical Barium Sulfate Barium Sulfide Battery Acid Benzaldehyde Benzene Benzene Sulfonic Acid Benzoic Acid Benzoyl Chloride Benzyl Alcohol Benzyl Chloride Bismuth Carbonate Black Liquor Bleach (12.5% Cl2) Borax Boric Acid Brine Bromic Acid Bromine (Dry) Bromine Water (10%) mono-Bromobenzene Bromoform m-Bromotoluene Butadiene Butane Butanediol Butyl Acetate Butyl Acrylate n-Butyl Alcohol sec-Butyl Alcohol tert-Butyl Alcohol n-Butylamine sec-Butylamine tert-Butylamine di-n-Butyl Amine tri-n-Butyl Amine Butylene Butyl Bromide Butyl Chloride n-Butyl Mercaptan Butyl Phenol Butyl Phthalate Butyraldehyde Butyric Acid

C Calcium Bisulfate Calcium Bisulfide Calcium Carbonate Calcium Chlorate Calcium Chloride Calcium Hydroxide Calcium Hypochlorite Calcium Nitrate Calcium Oxide Calcium Sulfate Calcium Sulfide Caprylic Acid

Maximum Use Temperature °F °C 300 300 250 212 212 212 275 150 300 300 300 300 212 300 300 300 250 150 230 212 212 212 250 300 275 230 230 300 300 300 120 120 120 230 230 300 300 300 300 230 150 212 250

150 150 120 100 100 100 135 65 150 150 150 150 100 150 150 150 120 65 110 100 100 100 120 150 135 110 110 150 150 150 50 50 50 110 110 150 150 150 150 110 65 100 120

300 300 300 300 300 300 300 300 275 300 250 212

150 150 150 150 150 150 150 150 135 150 120 100

(continued)

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Table 1 (continued) Chemical Compatibility Data on DuPont™ Tefzel® (Based on Tests of Representative Materials and Engineering Judgment)

Chemical Carbon Dioxide (Dry) Carbon Dioxide (Wet) Carbon Disulfide Carbon Monoxide Carbon Tetrachloride Carbonic Acid Castor Oil Caustic Potash (10 and 50%) Caustic Soda (10 and 50%) Cellosolve® Chloral Hydrate Chlorinated Brine Chlorinated Phenol Chlorine (Dry) Chlorine (Wet) Chlorine Dioxide Chloroacetic Acid (50% H2O) Chlorobenzene Chlorobenzyl Chloride Chloroform Chlorohydrin (Liquid) Chlorosulphonic Acid Chromic Acid (50%) Chromic Chloride Chromyl Chloride Clorox Bleach Solution (5-1/2% Cl2) Coal Gas Copper Chloride Copper Cyanide Copper Fluoride Copper Nitrate Copper Sulfate Cresol Cresylic Acid Crotonaldehyde Crude Oil Cyclohexane Cyclohexanol Cyclohexanone

D DDT Decalin Decane Dextrin Diacetone Alcohol 1,2-Dibromopropane Dibutyl Phthalate Dichloroacetic Acid o-Dichlorobenzene Dichloroethylene Dichloropropionic Acid Diesel Fuels Diethyl Benzene Diethyl Cellosolve Diethyl Ether Diethylamine Diethylene Triamine

Maximum Use Temperature °F °C 300 300 150 300 150 300 300 212 212 300 212 250 212 212 250 250 230 212 150 212 150 75 150 212 212 212 212 300 300 300 300 300 275 275 212 300 300 250 300

150 150 65 150 65 150 150 100 100 150 100 120 100 100 120 120 110 100 65 100 65 25 65 100 100 100 100 150 150 150 150 150 135 135 100 150 150 120 150

212 250 300 300 212 200 150 150 150 150 150 300 275 300 212 230 212

100 120 150 150 100 95 65 65 65 65 65 150 135 150 100 110 100

Chemical Diglycolic Acid Diisobutyl Ketone Diisobutylene Dimethyl Formamide Dimethyl Phthalate Dimethyl Sulfate Dimethyl Sulfoxide Dimethylamine Dimethylaniline Dioctyl Phthalate p-Dioxane Diphenyl Ether Divinyl Benzene

212 230 275 250 212 150 212 120 275 150 150 175 175

100 110 135 120 100 65 100 50 135 65 65 80 80

Ethyl Acetate Ethyl Acrylate Ethyl Alcohol Ethyl Chloride Ethyl Chloroacetate Ethyl Cyanoacetate Ethylacetoacetate Ethylamine Ethylene Bromide Ethylene Chloride Ethylene Chlorohydrin Ethylene Diamine Ethylene Glycol Ethylene Oxide

150 150 212 300 300 212 212 150 100 300 300 150 120 300 230

65 65 100 150 150 100 100 65 40 150 150 65 50 150 110

Fatty Acids Ferric Chloride (50% in H2O) Ferric Hydroxide Ferric Nitrate Ferric Sulfate Ferrous Chloride Ferrous Hydroxide Ferrous Nitrate Ferrous Sulfate Fluorine (Gaseous) Fluoroboric Acid Fluosilicic Acid Formaldehyde (37% in H2O) Formic Acid FREON® 11 FREON® 12 FREON® 22 Fuel Oil Fumaric Acid Furane Furfural

300 300 300 300 300 300 300 300 300 100 275 275 230 275 230 230 230 300 200 150 212

150 150 150 150 150 150 150 150 150 40 135 135 110 135 110 110 110 150 95 65 100

212 300 300 300 300 300

100 150 150 150 150 150

E Epichlorhydrin

F

G Gallic Acid Gas—Manufactured Gas—Natural Gasoline—Leaded Gasoline—Sour Gasoline—Unleaded

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Maximum Use Temperature °F °C

Table 1 (continued) Chemical Compatibility Data on DuPont™ Tefzel® (Based on Tests of Representative Materials and Engineering Judgment)

Chemical Glycerol Glycol Glycolic Acid

Maximum Use Temperature °F °C 300 275 250

150 135 120

Hexane Hydrazine Hydrazine Dihydrochloride Hydriodic Acid Hydrobromic Acid (50%) Hydrochloric Acid (20%) Hydrochloric Acid (Conc.) Hydrochloric Acid (Gas) Hydrocyanic Acid Hydrofluoric Acid (35%) Hydrofluoric Acid (70%) Hydrofluoric Acid (100%) Hydrofluorosilicic Acid Hydrogen Hydrogen Cyanide Hydrogen Peroxide (30%) Hydrogen Peroxide (90%) Hydrogen Phosphide Hydrogen Sulfide (Dry) Hydrogen Sulfide (Wet) Hydroquinone Hypochlorous Acid

300 300 100 125 300 300 300 300 300 300 275 250 230 300 300 300 250 150 150 300 300 250 300

150 150 40 50 150 150 150 150 150 150 135 120 110 150 150 150 120 65 65 150 150 120 150

Inert Gases Iodine (Dry) Iodine (Wet) Iodoform Isobutyl Alcohol Isopropylamine

300 230 230 230 275 120

150 110 110 110 135 50

J

Jet Fuel—JP4 Jet Fuel—JP5

230 230

110 110

L

Lactic Acid Lard Oil Lauric Acid Lauryl Chloride Lauryl Sulfate Lead Acetate Linoleic Acid Linseed Oil Lithium Bromide (Saturated) Lithium Hydroxide Lubricating Oil

250 300 250 275 250 300 275 300 250 300 300

120 150 120 135 120 150 135 150 120 150 150

300 300 300 300 300 275 200 275 275

150 150 150 150 150 135 95 135 135

H Heptane

I

M Magnesium Carbonate Magnesium Chloride Magnesium Hydroxide Magnesium Nitrate Magnesium Sulfate Maleic Acid Maleic Anhydride Malic Acid Mercuric Chloride

Chemical Mercuric Cyanide Mercuric Nitrate Mercury Methacrylic Acid Methane Methane Sulfonic Acid (50%) Methyl Alcohol n-Methylaniline Methyl Benzoate Methyl Bromide Methyl Cellosolve® Methyl Chloride Methyl Chloroform Methyl Chloromethyl Ether Methyl Cyanoacetate Methyl Ethyl Ketone Methyl Isobutyl Ketone Methyl Methacrylate Methyl Salicylate Methyl Sulfuric Acid Methyl Trichlorosilane Methylene Bromide Methylene Chloride Methylene Iodide Mineral Oil Monochlorobenzene Monoethanolamine Morpholine

N Naphtha Naphthalene Nickel Chloride Nickel Nitrate Nickel Sulfate Nicotine Nicotinic Acid Nitric Acid (50%) Nitric Acid (Conc. 70%) Nitric Acid—Sulfuric Acid (50/50) Nitrobenzene Nitrogen Dioxide Nitrogen Gas Nitromethane Nitrous Acid

O Octane Octene Oleic Acid Oleum Oxalic Acid Oxygen Ozone (