Gasket Chemical Compatibility Chart

CheA – Minor Effect

B – Moderate Effect

C – Static Only

D – Not Recommended

* Insufficient Data

 

Chemicals

Natural Rubber

Styrene-
Butadiene (SBR)

Butyl IIR

EPDM, EPM

Nitrile NBR

Neoprene

Hypalon

Silicone

Fluoro-
elastomer (Viton)

Acetaldehyde

B

C

A

A

D

C

C

B

D

Acetamide

D

D

A

A

A

B

B

B

B

Acetic Acid, Glacial

B

B

B

A

C

D

C

B

C

Acetic Acid, 30%

B

B

B

A

B

A

B

A

B

Acetic Anhydride

B

B

B

B

C

B

A

C

D

Acetone

C

C

A

A

D

C

B

C

D

Acetophenone

D

D

A

A

D

D

D

D

D

Acetyl Chloride

D

D

D

D

D

D

D

C

A

Acetylene

B

B

A

A

A

B

B

B

A

Acrylonitrile

D

D

D

D

D

D

C

D

C

Adipic Acid

A

A

A

A

A

A

*

A

Alkazene (Dibromoethylbenzene)

D

D

D

D

D

D

D

D

B

Alum-NH3-Cr-K (Aqueous)

A

A

A

A

A

A

A

A

D

Aluminum Acetate (Aqueous)

A

B

A

A

B

B

A

D

D

Aluminum Chloride (Aqueous)

A

A

A

A

A

A

A

B

A

Aluminum Fluoride (Aqueous)

B

A

A

A

A

A

A

B

A

Aluminum Nitrate (Aqueous)

A

A

A

A

A

A

A

B

A

Aluminum Phosphate (Aqueous)

A

A

A

A

A

A

A

A

A

Aluminum Sulfate (Aqueous)

A

A

A

A

A

A

A

A

A

Ammonia Anhydrous

D

D

A

A

B

A

B

C

D

Ammonia Gas (cold)

A

A

A

A

A

A

A

A

D

Ammonia Gas (hot)

D

D

B

B

D

B

B

A

D

Ammonium Carbonate (Aqueous)

A

A

A

*

D

A

*

*

A

Ammonium Chloride (Aqueous)

A

A

A

A

A

A

A

A

Ammonium Hydroxide (conc.)

D

D

A

A

D

A

A

A

B

Ammonium Nitrate (Aqueous)

C

B

A

A

A

A

A

*

A

Ammonium Nitrite (Aqueous)

A

A

A

A

A

A

A

B

A

Ammonium Persulfate (Aqueous)

A

D

A

A

D

A

A

*

A

Ammonium Phosphate (Aqueous)

A

A

A

A

A

A

A

A

A

Ammonium Sulfate (Aqueous)

A

A

A

A

A

A

A

*

B

Amyl Acetate (Banana Oil)

D

D

C

C

D

D

D

D

D

Amyl Alcohol

B

B

A

A

B

B

A

D

B

Amyl Borate

D

D

D

D

A

A

A

*

A

Amyl Chloronapthalene

D

D

D

D

D

D

D

D

A

Amyl Napthalene

D

D

D

D

D

D

D

D

A

Aniline

D

D

A

A

D

D

C

D

C

Aniline Dyes

B

B

B

A

D

B

B

C

B

Aniline Hydrochloride

B

D

B

B

B

D

D

D

B

Animal Fats

D

D

B

B

A

B

B

B

A

Ansul Ether (Anesthetics)

D

D

C

C

C

D

D

D

D

Aqua Regia

D

D

D

C

D

D

A

D

B

Aroclor, 1248

D

D

C

C

C

D

A

B

A

Aroclor, 1254

D

D

D

C

D

D

D

C

A

Aroclor, 1260

A

A

A

A

A

A

A

B

A

Arsenic Acid

B

A

A

A

A

A

A

A

A

Arsenic Trichloride (Aqueous)

D

D

C

C

A

A

*

*

D

Askarel

D

D

D

D

B

D

D

D

A

Asphalt

D

D

D

D

B

B

B

D

A

Banana Oil (Amyl Acetate)

D

D

C

C

D

D

D

D

D

Barium Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Barium Hydroxide (Aqueous)

A

A

A

A

A

A

A

A

A

Barium Sulfate (Aqueous)

A

A

A

A

A

A

A

A

A

Barium Sulfide (Aqueous)

A

B

A

A

A

A

A

A

A

Beer

A

A

A

A

A

A

A

A

A

Beet Sugar Liquors

A

A

A

A

A

B

A

A

A

Benzaldehyde

D

D

A

A

D

D

A

B

D

Benzene

D

D

D

D

D

D

D

D

A

Benzene Sulfonic Acid (Nitrobenzine) (Pet Ether)

D

D

D

C

D

B

A

D

A

Benzine (Ligroin)

D

D

D

D

A

B

C

D

A

Benzoic Acid

D

D

D

C

C

D

D

C

A

Benzoyl Chloride

D

D

D

D

D

D

D

*

B

Benzyl Alcohol

D

D

A

A

D

B

B

B

A

Benzyl Benzoate

D

D

B

B

D

D

D

*

A

Benzyl Chloride

D

D

D

D

D

D

D

D

A

Biphenyl (Diphenyl) (Phenylbenzene)

D

D

D

D

D

D

D

D

A

Blast Furnace Gas

D

D

D

D

D

D

D

A

A

Bleach Solutions

D

D

A

A

D

D

A

B

A

Borax

B

B

A

A

B

A

A

B

A

Bordeaux Mixture

B

B

A

A

B

B

A

B

A

Boric Acid

A

A

A

A

A

A

A

A

A

Brine

A

A

A

A

A

A

A

A

A

Bromine-Anhydrous

D

D

D

D

D

D

D

D

A

Bromine Trifluoride

D

D

D

D

D

D

D

D

D

Bromine Water

D

D

C

B

D

D

A

D

A

Bromobenzene

D

D

D

D

D

D

D

D

A

Bunker Oil

D

D

D

D

A

D

D

B

A

Butadiene

D

D

D

C

D

D

C

D

A

Butane

D

D

D

D

A

A

B

D

A

Butter (Animal Fat)

D

D

B

A

A

B

B

B

A

Butyl Acetate

D

D

C

C

D

D

D

D

D

Butyl Acetyl Ricinoleate

D

D

A

A

C

B

B

*

A

Butyl Acrylate

D

D

D

D

D

D

D

*

D

Butyl Alcohol

A

A

B

B

A

A

A

B

A

Butyl Amine

D

D

C

B

C

D

D

D

D

Butyl Benzoate

C

B

B

B

D

D

D

*

A

Butyl Carbitol

D

D

A

A

D

C

B

D

C

Butyl Cellosolve

D

D

A

A

C

C

B

*

D

Butyl Oleate

D

D

B

B

D

D

D

*

A

Butyl Stearate

D

D

C

C

B

D

D

*

A

Butylene

D

D

D

D

B

C

D

D

A

Butyraldehyde

D

D

B

B

D

C

D

D

D

Calcium Acetate (Aqueous)

A

D

A

A

B

B

B

D

D

Calcium Bisulfite (Aqueous)

D

D

D

D

D

A

A

A

A

Calcium Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Calcium Hydroxide (Aqueous)

A

A

A

A

A

A

A

A

A

Calcium  Hypochlorite (Aqueous)

C

C

A

A

B

C

A

B

A

Calcium Nitrate (Aqueous)

A

A

A

A

A

A

A

B

A

Calcium Sulfide (Aqueous)

B

B

A

A

A

A

A

B

A

Cane Sugar Liquors

A

A

A

A

A

A

A

A

A

Carbamate

D

D

B

B

C

B

B

*

A

Carbitol

B

B

B

B

B

B

B

B

B

Carbolic Acid (Phenol)

D

D

B

B

D

C

D

D

A

Carbon Bisulfide

D

D

D

D

C

D

D

D

A

Carbon Dioxide

B

B

B

B

A

B

B

B

A

Carbonic Acid

A

B

A

A

B

A

A

A

A

Carbon Monoxide

B

B

A

A

A

B

B

A

A

Carbon Tetrachloride

D

D

D

D

C

D

D

D

A

Castor Oil

A

A

B

B

A

A

B

A

A

Cellosolve

D

D

B

B

D

D

D

D

C

Cellosolve Acetate

D

D

B

B

D

D

D

D

D

Cellulube (Fryquel)

D

D

A

A

D

D

D

A

A

ChinaWood Oil (Tung Oil)

D

D

C

C

A

B

C

D

A

Chlorine (Dry)

D

D

D

D

D

C

B

D

A

Chlorine (Wet)

D

D

C

C

D

C

C

D

B

Chlorine Dioxide

D

D

C

C

D

D

C

*

A

Chlorine Trifluoride

D

D

D

D

D

D

D

D

D

Chloroacetic Acid

D

D

B

A

D

D

A

*

D

Chloroacetone

D

D

B

A

D

C

C

D

D

Chlorobenzene

D

D

D

D

D

D

D

D

A

Chlorobromomethane

D

D

B

B

D

D

D

D

A

Chlorobutadiene

D

D

D

D

D

D

D

D

A

Chlorododecane

D

D

D

D

D

D

D

D

A

Chloroform

D

D

D

D

D

D

D

D

A

O-Chloronapthalene

D

D

D

D

D

D

D

D

A

1-Chloro-1-Nitro Ethane

D

D

D

D

D

D

D

D

D

Chlorosulfonic Acid

D

D

D

D

D

D

D

D

D

Chlorotoluene

D

D

D

D

D

D

D

D

A

Chlorox (Sodium Hypochlorite NaOC1)

D

D

B

B

B

A

B

B

A

Chrome Plating Solutions

D

D

B

B

D

D

D

B

A

Chromic Acid

D

D

C

C

D

C

B

C

A

Citric Acid

A

A

A

A

A

A

A

A

A

Coal Tar (Creosote)

D

D

D

D

A

B

D

D

A

Cobalt Chloride (Aqueous)

A

A

A

A

A

A

A

B

A

Cocoanut Oil

D

D

C

C

A

B

C

A

A

Cod Liver Oil

D

D

A

A

A

B

B

B

A

Coke Oven Gas

D

D

D

D

D

D

C

B

A

Copper Acetate (Aqueous)

A

D

A

A

B

B

B

D

D

Copper Chloride (Aqueous)

A

A

A

A

A

B

B

A

A

Copper Cyanide (Aqueous)

A

A

A

A

A

A

A

A

A

Copper Sulfate (Aqueous)

B

B

B

A

A

A

A

A

A

Corn Oil

D

D

C

C

A

C

B

A

A

Cottonseed Oil

D

D

C

B

A

B

B

A

A

Creosote (Coal Tar)

D

D

D

D

A

B

D

D

A

Cresol

D

D

D

D

D

C

D

D

A

Cresylic Acid

D

D

D

D

D

C

D

D

A

Cumene

D

D

D

D

D

D

D

D

A

Cyclohexane

D

D

D

D

A

C

D

D

A

Cyclohexanol

D

D

D

C

C

A

B

D

A

Cyclohexanone

D

D

B

B

D

D

D

D

D

P-Cymene

D

D

D

D

D

D

D

D

A

Decalin

D

D

D

D

D

D

D

D

A

Decane

D

D

D

D

A

D

C

B

A

Denatured Alcohol

A

A

A

A

A

A

A

A

A

Detergent Solutions

B

B

A

A

A

B

B

A

A

Developing Fluids

A

B

B

B

A

A

A

A

A

Diacetone

D

D

A

A

D

D

D

D

D

Diacetone Alcohol

D

D

A

A

D

B

B

B

D

Dibenzyl Ether

D

D

B

B

D

C

D

*

D

Dibenzyl Sebecate

D

D

B

B

D

D

D

C

B

Dibromoethylbenzene (Alkazene)

D

D

D

D

D

D

D

D

B

Dibutyl Amine

D

D

D

C

D

D

D

C

D

Dibutyl Ether

D

D

C

C

D

C

D

D

C

Dibutyl Phthalate

D

D

C

B

D

D

D

B

C

Dibutyl Sebecate

D

D

B

B

D

D

D

B

B

O-Dichlorobenzene

D

D

D

D

D

D

D

D

A

Dichloro-Isopropyl Ether

D

D

D

C

D

D

D

D

C

Dicyclohexylamine

D

D

D

D

C

D

D

D

Diesel Oil

D

D

D

D

A

C

C

D

A

Diethylamine

B

B

B

B

B

B

C

B

D

Diethyl Benzene

D

D

D

D

D

D

D

D

A

Diethyl Ether

D

D

D

D

D

C

C

D

D

Diethylene Glycol

A

A

A

A

A

A

A

B

A

Diethyl Sebecate

D

D

B

B

B

D

B

B

B

Diisobutylene

D

D

D

D

B

D

D

D

A

Diisopropyl Benzene

D

D

D

D

D

D

D

*

A

Diisopropyl Ketone

D

D

A

A

D

D

D

D

D

Diisopropylidene Acetone (Phorone)

D

D

C

C

D

D

D

D

D

Dimethyl Aniline (Xylidine)

C

C

C

B

C

C

D

D

D

Dimethyl Ether (Methyl Ether)

D

D

D

D

A

C

C

A

D

Dimethyl Formamide

D

D

B

B

B

C

D

B

D

Dimethyl Phthalate

D

D

B

B

D

D

D

*

B

Dinitrotoluene

D

D

D

D

D

D

D

D

D

Dioctyl Phtalate

D

D

B

B

C

D

D

C

B

Dioctyl Sebecate

D

D

B

B

D

D

D

C

B

Dioxane

D

D

B

B

D

D

D

D

D

Dioxolane

D

D

C

B

D

D

D

D

D

Dipentene

D

D

D

D

B

D

D

D

A

Diphenyl (Biphenyl) (Phenylbenzene)

D

D

D

D

D

D

D

D

A

Diphenyl Oxides

D

D

D

D

D

D

D

C

A

Dowtherm Oil

D

D

D

D

D

D

D

C

A

Dry Cleaning Fluids

D

D

D

D

C

D

D

D

A

Epichlorohydrin

D

D

B

B

D

D

D

D

D

Ethane

D

D

D

D

A

B

B

D

A

Ethanolamine

B

B

B

B

B

B

C

B

D

Ethyl Acetate

D

D

B

B

D

C

D

B

D

Ethyl Acetoacetate

C

C

B

B

D

C

D

B

D

Ethyl Acrylate

D

D

B

B

D

D

D

B

D

Ethyl Alcohol

A

A

A

A

A

A

A

A

B

Ethyl Benzene

D

D

D

D

D

D

D

D

A

Ethyl Benzoate

A

A

A

A

D

D

D

D

A

Ethyl Cellosolve

D

D

D

D

D

D

D

D

D

Ethyl Cellulose

B

B

B

B

B

B

B

C

D

Ethyl Chloride

D

D

D

C

A

D

D

D

A

Ethyl Chlorocarbonate

D

D

C

B

D

D

D

D

A

Ethy Chloroformate

D

D

C

B

D

D

D

D

D

Ethyl Ether

D

D

C

C

C

C

D

D

D

Ethyl Formate

D

D

B

B

D

B

B

*

A

Ethyl Mercaptan

D

D

D

C

D

C

B

C

B

Ethyl Oxalate

A

A

A

A

D

C

D

D

A

Ethyl Pentachlorobenzene

D

D

D

D

D

D

D

D

A

Ethyl Silicate

B

B

A

A

A

A

B

*

A

Ethylene

C

C

B

B

A

C

*

*

A

Ethylene Chloride

D

D

C

C

D

D

D

D

B

Ethylene Chlorohydrin

B

B

B

B

D

B

B

C

A

Ethylene Diamine

A

B

A

A

A

A

B

A

D

Ethylene Dichloride

D

D

C

C

D

D

D

D

A

Ethylene Glycol

A

A

A

A

A

A

A

A

A

Ethylene Oxide

D

D

C

C

D

D

D

D

D

Ethylene Trichloride

D

D

C

C

D

D

D

D

A

Fatty Acids

D

D

C

C

B

B

B

C

A

Ferric Chloride (Aqueous)

A

A

A

A

A

A

A

B

A

Ferric Nitrate (Aqueous)

A

A

A

A

A

A

A

C

A

Ferric Sulfate (Aqueous)

A

A

A

A

A

A

A

B

A

Fish Oil

D

D

D

D

A

D

*

A

A

Fluorinated Cyclic Ethers

D

D

A

A

*

D

*

*

*

Fluorine (Liquid)

D

D

D

D

D

D

*

D

B

Fluorobenzene

D

D

D

D

D

D

*

D

A

Fluoroboric Acid

A

A

A

A

A

A

A

*

*

Fluorocarbon Oils

B

B

A

A

B

*

*

*

Fluorolube

B

C

A

A

A

B

A

A

B

Fluorosilicic Acid  (Hydrofluosilicic Acid)

B

C

B

B

A

B

A

D

A

Formaldehyde (RT)

B

B

A

A

C

B

A

B

D

Formic Acid

B

A

A

A

B

A

A

B

C

Freon 11

D

D

D

D

B

C

A

D

A

Freon 12

B

A

B

B

A

A

A

D

B

Freon 13

A

A

A

A

A

A

A

D

A

Freon 21

D

D

D

D

D

D

D

D

D

Freon 22

B

A

A

A

D

A

A

D

D

Freon 31

B

B

A

A

D

B

B

*

D

Freon 32

A

A

A

A

A

A

A

*

D

Freon 112

D

C

D

D

B

C

B

D

A

Freon 113

C

B

D

C

A

A

A

D

B

Freon 114

A

A

A

A

A

A

A

D

B

Freon 115

A

A

A

A

A

A

A

*

B

Freon 142b

B

B

A

B

A

A

A

*

D

Freon 152a

A

A

A

A

A

A

C

*

D

Freon 218

A

A

A

A

A

A

A

*

A

Freon C316

A

A

A

A

A

A

A

*

B

Freon C318

A

A

A

A

A

A

A

*

B

Freon 13B1

A

A

A

A

A

A

A

D

A

Freon 114B2

D

C

D

D

B

C

A

D

B

Freon 502

A

A

A

A

B

A

*

*

B

Freon TF

D

C

D

D

A

A

A

D

B

Freon T-WD602

D

C

B

B

B

B

B

D

A

Freon TMC

D

D

C

C

B

C

B

C

A

Freon T-P35

A

A

A

A

A

A

A

A

A

Freon TA

C

C

B

B

A

B

A

C

D

Freon TC

D

C

B

B

A

A

A

D

A

Freon MF

D

D

D

D

A

C

B

D

B

Freon BF

D

D

D

D

B

C

B

D

A

Fuel Oil

D

D

D

D

A

B

B

D

A

Fumaric Acid

C

C

B

B

A

B

B

B

A

Furan, Furfuran

D

D

D

C

D

D

D

*

D

Furfural

D

D

B

B

D

C

C

D

D

Fyrquel (Cellulube)

D

D

A

A

D

D

D

A

A

Gallic Acid

A

B

B

B

B

B

B

*

A

Gasoline

D

D

D

D

B

C

C

D

A

Gelatin

A

A

A

A

A

A

A

A

A

Glauber’s Salt (Aqueous)

B

D

B

B

D

B

B

*

A

Glucose

A

A

A

A

A

A

A

A

A

Glue

B

B

B

A

A

A

A

A

A

Glycerin

A

A

A

A

A

A

A

A

A

Glycols

A

A

A

A

A

A

A

A

A

Green Sulfate Liquor

B

B

A

A

B

B

B

A

A

Halowax Oil

D

D

D

D

D

D

D

D

A

N-Hexaldehyde

D

D

B

A

D

A

C

B

D

Hexane

D

D

D

D

A

B

B

D

A

N-Hexene-1

D

D

D

D

B

B

B

D

A

Hexyl Alcohol

B

B

C

C

A

B

B

B

A

Hydrazine

A

A

A

A

B

B

B

C

D

Hydraulic Oil (Petroleum)

D

D

D

D

A

B

B

C

A

Hydrobromic Acid

A

D

A

A

D

D

A

D

A

Hydrobromic Acid 40%

A

D

A

A

D

B

A

D

A

Hydrochloric Acid (Cold) 37%

B

B

A

A

C

B

A

C

A

Hydrochloric Acid (Hot) 37%

D

D

C

C

D

D

D

D

B

Hydrocyanic Acid

B

B

A

A

B

B

A

C

A

Hydrofluoric Acid (Conc.) Cold

D

D

C

C

D

D

A

D

A

Hydrofluoric Acid (Conc.) Hot

D

D

D

D

D

D

C

D

D

Hydrofluoric Acid-Anhydrous

D

D

C

C

D

D

A

D

D

Hydrofluosilicic Acid (Fluosilicic Acid)

B

C

B

B

A

B

A

D

A

Hydrogen Gas

B

A

A

A

A

A

A

C

A

Hydrogen Peroxide (90%)

D

D

C

B

D

D

A

B

B

Hydrogen Sulfide (Wet) Cold

D

D

A

A

D

B

B

C

D

Hydrogen Sulfide (Wet) Hot

D

D

A

A

D

C

C

C

D

Hydroquinone

B

D

B

B

C

D

D

*

B

Hypochlorous Acid

B

D

B

B

D

D

D

*

A

Iodine Pentafluoride

D

D

D

D

D

D

D

D

D

Iodoform

D

D

D

D

*

D

*

*

C

Isobutyl Alcohol

A

B

A

A

B

A

A

A

A

Isooctane

D

D

D

D

A

B

B

D

A

Isophorone

D

D

C

C

D

D

D

D

D

Isopropyl Acetate

D

D

B

B

D

D

D

D

D

Isopropyl Alcohol

A

B

A

A

B

B

A

A

A

Isopropyl Chloride

D

D

D

D

D

D

D

D

A

Isopropyl Ether

D

D

D

D

B

C

C

D

D

Kerosene

D

D

D

D

A

B

C

D

A

Lacquers

D

D

D

D

D

D

D

D

D

Lacquer Solvents

D

D

D

D

D

D

D

D

D

Lactic Acid (Cold)

A

A

A

A

A

A

A

A

A

Lactic Acid (Hot)

D

D

D

D

D

D

C

B

A

Lard

D

D

B

B

A

B

D

B

A

Lavender Oil

D

D

D

D

B

D

D

D

A

Lead Acetate (Aqueous)

A

D

A

A

B

B

D

D

D

Lead Nitrate (Aqueous)

A

A

A

A

A

A

A

B

A

Lead Sulfamate (Aqueous)

B

B

A

A

B

A

A

B

A

Ligroin (Benzine) (Nitrobenzine)

D

D

D

D

A

B

C

D

A

Lime Bleach

A

B

A

A

A

B

B

B

A

Lime Sulfur

D

D

A

A

D

A

A

A

A

Lindol (Hydraulic Fluid)

D

D

A

A

D

D

D

C

B

Linoleic Acid

D

D

D

D

B

D

D

B

B

Linseed Oil

D

D

C

C

A

B

B

A

A

Liquefied Petroleum Gas

D

D

D

D

A

B

B

C

A

Lubricating Oils (Petroleum)

D

D

D

D

A

B

B

D

A

Lye

B

B

A

A

B

B

A

B

B

Magnesium Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Magnesium Hydroxide (Aqueous)

B

B

A

A

B

A

A

*

A

Magnesium Sulfate (Aqueous)

B

B

A

A

A

A

A

A

A

Maleic Acid

C

C

B

B

D

C

D

*

A

Maleic Anhydride

C

C

B

B

D

C

D

*

D

Malic Acid

C

C

B

B

A

C

B

B

A

Mercury Chloride (Aqueous)

A

A

A

A

A

A

A

*

A

Mercury

A

A

A

A

A

A

A

*

A

Mesityl Oxide

D

D

B

B

D

D

D

D

D

Methane

D

D

D

D

A

B

B

D

A

Methyl Acetate

C

C

A

A

D

B

D

D

D

Methyl Acrylate

D

D

B

B

D

B

D

D

D

Methylacrylic Acid

D

D

B

B

D

B

D

D

D

Methyl Alcohol

A

A

A

A

A

A

A

A

D

Methyl Bromide

D

D

D

D

B

D

D

*

A

Methyl Butyl Ketone (Propyl Acetone)

D

D

A

A

D

D

D

C

D

Methyl Cellosolve

D

D

B

B

C

C

B

D

D

Methyl Chloride

D

D

C

C

D

D

D

D

B

Methyl Cyclopentane

D

D

D

D

D

D

D

D

A

Methylene Chloride

D

D

D

C

D

D

D

D

B

Methyl Ether (Dimethyl Ether)

D

D

D

D

A

C

C

A

D

Methyl Ethyl Ketone

D

D

B

A

D

C

D

D

D

Methyl Formate

D

D

B

B

D

B

B

*

D

Methyl Isobutyl Ketone

D

D

C

B

D

D

D

D

D

Methyl Methacrylate

D

D

D

C

D

D

D

D

D

Methyl Oleate

D

D

B

B

D

D

D

*

B

Methyl Salicylate

C

C

B

B

D

D

D

*

B

Milk

A

A

A

A

A

A

A

A

A

Mineral Oil

D

D

C

C

A

B

B

B

A

Monochlorobenzene

D

D

D

D

D

D

D

D

A

Monomethyl Aniline

D

D

B

B

D

D

D

*

B

Monoethanol Amine

B

B

B

A

D

D

D

B

D

Monomethyl Ether (Methyl Ether)

D

D

D

D

A

C

B

A

D

Monovinyl Acetylene

B

B

B

B

A

B

B

B

A

Mustard Gas

A

B

A

A

*

A

A

A

A

Naphtha

D

D

D

D

B

C

D

D

A

Naphthalene

D

D

D

D

D

D

D

D

A

Naphthalenic Acid

D

D

D

D

B

D

D

D

A

Natural Gas

B

B

D

D

A

A

A

A

A

Neats Foot Oil

D

D

B

B

A

D

D

B

A

Neville Acid

D

D

B

B

D

D

D

D

A

Nickel Acetate (Aqueous)

A

D

A

A

B

B

D

D

D

Nickel Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Nickel Sulfate (Aqueous)

B

B

A

A

A

A

A

A

A

Niter Cake

A

A

A

A

A

A

A

A

A

Nitric Acid (Conc.)

D

D

D

D

D

D

B

D

B

Nitric Acid (Dilute)

D

D

B

B

D

B

A

B

A

Nitric Acid-Red Fuming

D

D

D

D

D

D

D

D

C

Nitrobenzene

D

D

A

A

D

D

D

D

B

Nitrobenzene (Petroleum Ether)

D

D

D

D

A

B

C

D

A

Nitroethane

B

B

B

B

D

C

B

D

D

Nitrogen

A

A

A

A

A

A

A

A

A

Nitrogen Tetroxide

D

D

C

C

D

D

D

D

D

Nitromethane

B

B

B

B

D

B

C

D

D

Octachlorotoluene

D

D

D

D

D

D

D

D

A

Octadecane

D

D

D

D

A

B

B

D

A

N-Octane

D

D

D

D

B

B

B

D

A

Octyl Alcohol

B

B

C

C

B

A

B

B

A

Oleic Acid

D

D

D

D

C

C

C

D

B

Oleum Spirits

D

D

D

D

B

C

B

D

A

Olive Oil

D

D

B

B

A

B

B

C

A

O-Dichlorobenzene

D

D

D

D

D

D

D

D

A

Oxalic Acid

B

B

A

A

B

B

B

B

A

Oxygen-Cold

B

B

A

A

B

A

A

A

A

Oxygen-(200-400°F)

D

D

D

C

D

D

D

B

B

Ozone

D

D

B

A

D

C

A

A

A

Paint Thinner, Duco

D

D

D

D

D

D

D

D

B

Palmitic Acid

B

B

B

B

A

B

C

D

A

Peanut Oil

D

D

C

C

A

C

B

A

A

Perchloric Acid

D

D

B

B

D

B

B

D

A

Perchloroethylene

D

D

D

D

B

D

D

D

A

Petroleum-Below 250°F

D

D

D

D

A

B

B

B

A

Petroleum-Above 250°F

D

D

D

D

D

B

D

D

B

Phenol (Carbolic Acid)

D

*

B

B

D

C

D

D

A

Phenylbenzene (Biphenyl) (Diphenyl)

D

D

D

D

D

D

D

D

A

Phenyl Ethyl Ether

D

D

D

D

D

D

D

D

D

Phenyl Hydrazine

A

B

B

B

D

D

D

*

B

Phorone (Diisopropylidene Acetone)

D

D

C

C

D

D

D

D

D

Phosphoric Acid-20%

B

B

B

A

B

B

A

B

A

Phosphoric Acid-45%

C

C

B

A

D

B

B

C

A

Phosphorus Trichloride

D

D

A

A

D

D

D

*

A

Pickling Solution

D

D

C

C

D

D

B

D

B

Picric Acid

B

B

B

B

B

A

B

D

A

Pinene

D

D

D

D

B

C

C

D

A

Pine Oil

D

D

D

D

D

D

D

D

A

Piperidine

D

D

D

D

D

D

D

D

D

Plating Solution-Chrome

D

D

A

A

*

D

D

D

A

Plating Solution-Others

D

D

A

A

A

D

A

D

A

Polyvinyl Acetate Emulsion

B

D

A

A

*

B

B

*

*

Potassium Acetate (Aqueous)

A

D

A

A

B

B

A

D

D

Potassium Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Potassium Cupro Cyanide (Aqueous)

A

A

A

A

A

A

A

A

A

Potassium Cyanide (Aqueous)

A

A

A

A

A

A

A

A

A

Potassiun Dichromate (Aqueous)

B

B

A

A

A

A

A

A

A

Potassium Hydroxide (Aqueous)

B

B

A

A

B

B

A

C

D

Potassium Nitrate (Aqueous)

A

A

A

A

A

A

A

A

A

Potassium Sulfate (Aqueous)

B

A

A

A

A

A

B

A

A

Producer Gas

D

D

D

D

A

B

B

B

A

Propane

D

D

D

D

A

B

B

D

A

i-Propyl Acetate

D

D

B

B

D

D

D

D

D

n-Propyl Acetate

D

D

B

B

D

D

D

D

D

Propyl Acetone (Methyl Butyl Ketone)

D

D

A

A

D

D

D

C

D

Propyl Alcohol

A

A

A

A

A

A

A

A

A

Propyl Nitrate

D

D

B

B

D

D

D

D

D

Propylene

D

D

D

D

D

D

D

D

A

Propylene Oxide

D

D

B

B

D

D

D

D

D

Pydraul, 10E, 29 ELT

D

D

A

A

D

D

D

D

A

Pydraul, 30E, 50E, 65E, 90E

D

D

A

A

D

D

D

A

A

Pydraul, 115E

D

D

A

A

D

D

D

D

A

Pydraul, 230E, 312C, 540C

D

D

D

D

D

D

D

D

A

Pyranol, Transformer Oil

D

D

D

D

A

B

C

D

A

Pyridine

D

D

B

B

D

D

D

D

D

Pyroligneous Acid

D

D

B

B

D

B

B

*

D

Pyrrole

C

C

D

C

D

D

D

B

D

Radiation

C

C

D

B

C

B

C

C

C

Rapeseed Oil

D

D

A

A

B

B

B

D

A

Red Oil (MIL-H-5606)

D

D

D

D

A

B

B

D

A

RJ-1 (MIL-F-25558 B)

D

D

D

D

A

B

B

D

A

RP-1 (MIL-F-25576 C)

D

D

D

D

A

B

B

D

A

Sal Ammoniac

A

A

A

A

A

A

A

B

A

Salicylic Acid

A

B

A

A

B

A

*

*

A

Salt Water

A

A

A

A

A

B

A

A

A

Sewage

B

B

B

B

A

B

A

B

A

Silicate Esters

D

D

D

D

B

A

A

D

A

Silicone Greases

A

A

A

A

A

A

A

C

A

Silicone Oils

A

A

A

A

A

A

A

C

A

Silver Nitrate

A

A

A

A

B

A

A

A

A

Skydrol 500

D

D

B

A

D

D

D

C

D

Skydrol 7000

D

D

A

A

D

D

D

C

B

Soap Solutions

B

A

A

A

A

B

A

A

A

Soda Ash

A

A

A

A

A

A

A

A

A

Sodium Acetate (Aqueous)

A

D

A

A

B

B

A

D

D

Sodium Bicarbonate (Aqueous) (Baking Soda)

A

A

A

A

A

A

A

A

A

Sodium Bisulfite (Aqueous)

A

B

A

A

A

A

A

A

A

Sodium Borate (Aqueous)

A

A

A

A

A

A

A

A

A

Sodium Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Sodium Cyanide (Aqueous)

A

A

A

A

A

A

A

A

A

Sodium Hydroxide (Aqueous)

A

A

A

A

B

A

A

B

B

Sodium Hypochlorite (Aqueous) (Chlorox)

D

D

B

B

B

A

A

B

A

Sodium Metaphosphate (Aqueous)

A

A

A

A

A

B

B

*

A

Sodium Nitrate (Aqueous)

B

A

A

A

B

B

A

D

A

Sodium Perborate (Aqueous)

B

B

A

A

B

B

B

B

A

Sodium Peroxide (Aqueous)

B

B

A

A

B

B

B

D

B

Sodium Phosphate (Aqueous)

A

A

A

A

A

B

A

D

A

Sodium Silicate (Aqueous)

A

A

A

A

A

A

A

*

A

Sodium Sulfate (Aqueous)

B

B

A

A

A

A

A

A

A

Sodium Thiosulfate (Aqueous)

B

B

A

A

B

A

A

A

A

Soybean Oil

D

D

C

C

A

B

C

A

A

Stannic Chloride (Aqueous)

A

A

A

A

A

B

A

B

A

Stannous Chloride (Aqueous)

A

A

A

A

A

A

A

B

A

Steam Under 300°F

D

D

B

A

D

C

D

C

D

Steam Over 300°F

D

D

D

C

D

D

D

D

D

Stearic Acid

B

B

B

B

B

B

B

B

A

Stoddard Solvent

D

D

D

D

A

B

D

D

A

Styrene

D

D

D

D

D

D

D

D

B

Sucrose Solution

A

A

A

A

A

B

B

A

A

Sulfite Liquors

B

B

B

B

B

B

B

D

A

Sulfur

D

D

A

A

D

A

A

C

A

Sulfur Chloride (Aqueous)

D

D

D

D

C

C

B

C

A

Sulfur Dioxide (Dry)

B

B

B

A

D

D

B

B

B

Sulfur Dioxide (Wet)

D

D

A

A

D

B

A

B

B

Sulfur Dioxide (Liquified Under Pressure)

D

D

B

A

D

D

D

B

B

Sulfur Hexafluoride

D

D

A

A

B

A

B

B

A

Sulfur Trioxide

B

B

B

B

D

D

D

B

A

Sulfuric Acid (Dilute)

C

C

B

B

C

B

A

D

A

Sulfuric Acid (Conc.)

D

D

D

C

D

D

A

D

A

Sulfuric Acid (20% Oleum)

D

D

D

D

D

D

D

D

A

Sulfurous Acid

B

B

B

B

B

B

A

D

C

Tannic Acid

A

B

A

A

A

A

A

B

A

Tar, Bituminous

D

D

C

C

B

C

D

B

A

Tartaric Acid

C

D

B

B

A

B

A

A

A

Terpineol

D

D

C

C

B

D

D

*

A

Tertiary Butyl Alcohol

B

B

B

B

B

B

B

B

A

Tertiary Butyl Catechol

D

B

B

B

D

B

B

*

A

Tertiary Butyl Mercaptan

D

D

D

D

D

D

D

D

A

Tetrabromoethane

D

D

D

D

D

D

D

D

A

Tetrabromomethane

D

D

D

D

D

D

*

D

A

Tetrabutyl Titanate

B

B

B

A

B

B

A

*

A

Tetrachloroethylene

D

D

D

D

D

D

D

D

A

Tetraethyl Lead

D

D

D

D

B

B

D

*

A

Tetrahydrofuran

D

D

C

C

D

D

D

D

D

Tetralin

D

D

D

D

D

D

D

D

B

Thionyl Chloride

D

D

D

C

D

D

D

*

B

Titanium Tetrachloride

D

D

D

D

B

D

D

D

A

Toluene

D

D

D

D

D

D

D

D

B

Toluene Diisocyanate

D

D

B

B

D

D

D

D

D

Transformer Oil

D

D

D

D

A

B

C

B

A

Transmission Fluid Type A

D

D

D

D

A

B

B

B

A

Triacetin

B

B

A

A

B

B

B

*

D

Triaryl Phosphate

D

D

A

A

D

D

D

C

A

Tributoxy Ethyl Phosphate

B

B

A

A

D

D

D

*

A

Tributyl Mercaptan

D

D

D

D

D

D

D

D

A

Tributyl Phosphate

B

D

B

B

D

D

D

D

D

Trichloroacetic Acid

C

B

B

B

B

D

D

*

D

Trichloroethane

D

D

D

D

D

D

D

D

A

Trichloroethylene

D

D

D

D

D

D

D

D

A

Tricresyl Phosphate

D

A

A

D

D

C

D

C

A

Triethanol Amine

B

B

B

A

B

A

B

*

D

Triethyl Aluminum

D

D

C

C

D

D

D

*

B

Triethyl Borane

D

D

C

C

D

D

D

*

A

Trinitrotoluene

D

D

D

D

D

B

B

*

B

Trioctyl Phosphate

D

D

A

A

D

D

D

C

B

Tung Oil (ChinaWood Oil)

D

D

C

C

A

B

C

D

A

Turbine Oil

D

D

D

D

B

D

D

D

A

Turpentine

D

D

D

D

A

D

D

D

A

Unsymmetrical Dimethyl Hydrazine

A

A

A

A

B

B

A

D

D

Varnish

D

D

D

D

B

D

D

D

A

Vegetable Oils

D

D

C

C

A

C

B

B

A

Versilube F-50

A

A

A

A

A

A

A

C

A

Vinegar

B

B

A

A

B

B

A

A

A

Vinyl Chloride

D

D

D

D

D

D

D

*

A

Wagner 21B Brake Fluid

B

A

B

A

C

B

B

C

D

Water

A

A

A

A

A

A

A

A

A

Whiskey, Wines

A

A

A

A

A

A

A

A

A

White Pine Oil

D

D

D

D

B

D

D

D

A

White Oil

D

D

D

D

A

B

D

D

A

Wood Oil

D

D

D

D

A

B

C

D

A

Xylene

D

D

D

D

D

D

D

D

A

Xylidine (Di-methyl Aniline)

C

C

C

B

C

C

D

D

D

Zeolites

A

A

A

A

A

A

A

*

A

Zinc Acetate (Aqueous)

A

D

A

A

B

B

A

D

D

Zinc Chloride (Aqueous)

A

A

A

A

A

A

A

A

A

Zinc Sulfate (Aqueous)

B

B

A

A

A

A

A

A

A