Tantalum Coating by Tantalum Technologies +1-88-TANTALUM / Website: www.tantalum-coating.com

Tantalum Valves - Tantalum Fittings -  Tantalum Fasteners - Tantalum Thermowells
by TANTALINE - www.tantaline.com

Corrosion Resistance of Tantalum in Different Media.

This table shows typical corrosion properties of tantalum in different media. The table is for inspiration only, and cannot be used as design guideline, since data is presented in a very simplified form.

Rating

Excellent: Tantalum / Tantalum Coating is probably suitable
Poor: Tantalum/Tantalum Coating is probably not suitable.
Limited: Tantalum coating is probably not suitable

Media

Formula

Corrosion resistance
acetic acid  C2H4O2  excellent
acetic anhydride  C4H6O3  excellent
acetone  C3H6O  excellent
acetyl chloride  C2H3ClO  excellent
acetylene C2H2  excellent
acetylene chloride excellent
acrolein  C3H4O  excellent
acrylonitrile  C3H3N  excellent
alkanesulfonic acids     excellent
alkyl naphthalene sulfonates     excellent
alkylaryl sulfonic acids     excellent
alkylphenol     excellent
allyl alcohol  C3H6O  excellent
allyl chloride  C3H5Cl  excellent
allyl sulfide     excellent
allylamine  C3H7N  excellent
allylidene diacetate excellent
aluminum acetate excellent
aluminum chlorate     excellent
aluminum chloride  AlCl3  excellent
aluminum diformate     excellent
aluminum ethylate  C6H15alO3  excellent
aluminum fluoride  AlF3  poor
aluminum potassium sulfate  AlKO8S2  excellent
aluminum sulfate  Al2O12S3  excellent
aminobenzenesulfonic acid     excellent
aminopyridines     excellent
ammonium bicarbonate  CH5NO3  excellent
ammonium bromide  BrH4N  excellent
ammonium carbamate  CH6N2O2  excellent
ammonium carbonate  CH8N2O3  excellent
ammonium chloride  ClH4N  excellent
ammonium chloride  ClH4N  excellent
ammonium citrate  excellent
ammonium citrate     excellent
ammonium formate  CH5NO2 excellent
ammonium hydroxide  H5NO  poor
ammonium molybdate     excellent
ammonium oxalate  C2H8N2O4  excellent
ammonium perchlorate  ClH4NO4  excellent
ammonium persulfate  H8N2O8S2  excellent
ammonium phosphate   excellent
ammonium picrate  C6H6N4O7  excellent
ammonium sulfamate  H6N2O3S  excellent
ammonium sulfate  H8N2O4S  excellent
ammonium sulfide  H8N2S  excellent
ammonium sulfite     excellent
ammonium thiocyanate  CH4N2S  excellent
ammonium tungstate    excellent
amyl acetate  C7H14O2  excellent
amyl alcohol  C5H12O  excellent
amyl chloride  C5H11Cl  excellent
amyl cinnamaldehyde     excellent
amyl laureate excellent
amyl mercaptan excellent
amyl nitrate     excellent
amyl valerate  excellent
aniline  C6H7N  excellent
aniline hydrochloride  C6H8ClN  excellent
anisole  C7H8O  limited / poor
anthracene chloride     excellent
anthraquinonedisulfonic acid   excellent
antimony pentachloride  Cl5Sb  excellent
antimony sulfate  O12S3Sb2  excellent
antimony trichloride  Cl3Sb  excellent
aqua regia     excellent
arachidic acid  C20H40O2  excellent
arsenic acid  asH3O4  excellent
arsenic trichloride  asCl3  excellent
arsenic trioxide     excellent
ascorbic acid     excellent
azobenzene     excellent
barium chlorate     excellent
barium chloride  BaCl2  excellent
barium cyanide  C2BaN2  poor
barium nitrate  BaN2O6  excellent
barium peroxide  BaO2  poor
benzaldehyde  C7H6O  excellent
benzene  C6H6  excellent
benzenesulfonic acid     excellent
benzilic acid  C14H12O3  excellent
benzoic acid  C7H6O2  excellent
benzoic anhydride  C14H10O3  excellent
benzonitrile  C7H5N  excellent
benzophenone  C13H10O  excellent
benzotrichloride  C7H5Cl3  excellent
benzotrifluoride  C7H5F3  excellent
benzoyl chloride  C7H5ClO  excellent
benzyl acetate  C9H10O2  excellent
benzyl alcohol  C7H8O  excellent
benzyl benzoate  C14H12O2  excellent
benzyl bromide  C7H7Br  excellent
benzyl chloride  C7H7Cl  excellent
benzyl dichloride     excellent
benzyl phenol     excellent
benzyl salicylate  C14H12O3  excellent
benzylamine  C7H9N  excellent
beryllium chloride  BeCl2  excellent
beryllium sulfate  BeO4S  excellent
boric acid     excellent
bornyl acetate  C12H20O2  excellent
bornyl formate     excellent
boron trichloride   excellent
bromic acid  BrHO3  excellent
bromine  Br2  excellent
bromine trifluoride  BrF3  poor
bromobenzene  C6H5Br  excellent
bromochloropropane     excellent
bromoform  CHBr3  excellent
bromotoluene     excellent
butadiene     excellent
butane  C4H10  excellent
butanediol     excellent
butanol     excellent
butyl acetate  C6H12O2  excellent
butyl benzoate  C11H14O2 excellent
butyl butyrate     excellent
butyl chloride  C4H9Cl  excellent
butyl lactate  C7H14O3  excellent
butyl methacrylate  C8H14O2  excellent
butyl stearate  C22H44O2  excellent
butylphenols     excellent
butyric acid  C4H8O2  excellent
butyric acid  C4H8O2  excellent
butyric anhydride  C8H14O3  excellent
butyrolactone     excellent
butyryl chloride     excellent
cadmium chloride  CdCl2  excellent
cadmium sulfate  CdO4S  excellent
calcium bisulfite     excellent
calcium bromide  Br2Ca  excellent
calcium chlorate  CaCl2O6  excellent
calcium chloride  CaCl2 excellent
calcium chromate     excellent
calcium hydroxide  CaH2O2  excellent
calcium hypochlorite     excellent
calcium nitrate  CaN2O6  excellent
calcium thiocyanate     excellent
camphene  C10H16  excellent
capric acid  C10H20O2  excellent
caproaldehyde  C6H12O  excellent
capsicin     excellent
carbon disulfide  CS2  excellent
carbon fluoride     excellent
carbon monoxide  CO  excellent
carbon tetrabromide  CBr4  excellent
carbon tetrachloride  CCl4  excellent
carbonic acid  CH2O3  excellent
casein     excellent
cellulose acetate     excellent
cellulose acetate butyrate     excellent
cellulose methyl ether     excellent
cellulose nitrate     excellent
cetyl alcohol  C16H34O  excellent
chaulmoogric acid  C18H32O2  excellent
chloric acid     excellent
chlorine  Cl2  excellent
chlorine dioxide  ClO2  excellent
chloroacetic acid  C2H3ClO2  excellent
chloroacetone  C3H5ClO  excellent
chloroacetyl chloride  C2H2Cl2O  excellent
chloroalkyl ethers     excellent
chlorobenzaldehyde     excellent
chlorobenzene  C6H5Cl  excellent
chlorobenzotrifluoride     excellent
chlorodifluoromethane  CHClF2  excellent
chloroethylbenzene     excellent
chloroform  CHCl3  excellent
chlorohydrin     excellent
chloronaphthalene     excellent
chloronitrobenzene     excellent
chlorophenohydroxyacetic acid     excellent
chlorophenol     excellent
chloroprene     excellent
chlorosilanes     excellent
chlorosulfonic acid  ClHO3S  excellent
chlorotoluene sulfonic acid     excellent
chlorotoluidine     excellent
chlorotrifluoroethylene  C2ClF3  excellent
chlorotrifluoromethane  CClF3  excellent
chloroxylenol  C8H9ClO  excellent
chromic acid     excellent
chromic sulfate  Cr2O12S3  excellent
chromium potassium sulfate     excellent
chromyl chloride     excellent
cinnamic alcohol     excellent
cinnamic aldehyde     excellent
citric acid  C6H8O7  excellent
cobaltous linoleate     excellent
codeine sulfate     excellent
codliver oil     excellent
copper acetate  C2H3CuO2  excellent
copper nitrate  CuN2O6  excellent
copper sulfate  CuO4S  excellent
creosote     excellent
crotonaldehyde   excellent
crotonic acid     excellent
cumene  C9H12  excellent
cumene hydroperoxide   excellent
cupric chloride  Cl2Cu  excellent
cyanamide     excellent
cyanoacetic acid  C3H3NO2  excellent
cyanogen  C2N2  excellent
cyanogen chloride  CClN  excellent
cyclohexane  C6H12  excellent
cyclohexanol  C6H12O  excellent
cyclohexene  C6H10  excellent
cyclohexylamine  C6H13N  excellent
cyclopentadiene     excellent
cyclopentane  C5H10  excellent
ddt     excellent
dextrose     excellent
diacetone alcohol  C6H12O2 excellent
diallyl phthalate   excellent
diamyl ether   excellent
dibenzyl  C14H14  excellent
dibutyl ether  C8H18O  excellent
dibutylamine  C8H19N  excellent
dibutylthiourea     excellent
dichloroacetic acid  C2H2Cl2O2  excellent
dichlorobenzene     excellent
dichlorobutane     excellent
dichlorobutene     excellent
dichlorodifluoromethane  CCl2F2  excellent
dichloroethene     excellent
dichloroethylene     excellent
dichlorophenol     excellent
dichloropropene     excellent
dichlorotetrafluoroethane excellent
dieldrin  C12H8Cl6O  excellent
diethanolamine  C4H11NO2  excellent
diethyl ether  C4H10O  excellent
diethyl phthalate  C12H14O4 excellent
diethylamine  C4H11N excellent
diethylene glycol  C4H10O3  excellent
diethylenetriamine  C4H13N3  excellent
difluoroethane     excellent
diglycolic acid butyl ester     excellent
diisobutyl ketone  C9H18O  excellent
diisobutylcarbinol  C9H20O  excellent
dimethyl ether  C2H6O  excellent
dimethylamine  C2H7N  excellent
dimethylhexane     excellent
dimethylhydrazine     excellent
dinitrochlorobenzene     excellent
dioctyl phthalate  C24H38O4  excellent
dioxane     excellent
dipentene  C10H16  excellent
diphenyl  C12H10  excellent
diphenyl oxide     excellent
diphenylene oxide     excellent
diphenylpropane     excellent
dodecylbenzene  C18H30  excellent
epichlorohydrin  C3H5ClO  excellent
ethane  C2H6  excellent
ethyl acetate  C4H8O2 excellent
ethyl acetoacetate  C6H10O3  excellent
ethyl acrylate  C5H8O2  excellent
ethyl alcohol  C2H6O excellent
ethyl benzoate  C9H10O2 excellent
ethyl bromide  C2H5Br  excellent
ethyl butyrate   excellent
ethyl chloride  C2H5Cl excellent
ethyl formate  C3H6O2  excellent
ethyl malonate   excellent
ethyl mercaptan  C2H6S  excellent
ethyl nitrite     excellent
ethyl pelargonite     excellent
ethyl propionate  C5H10O2 excellent
ethyl silicate     excellent
ethyl stearate  C20H40O2 excellent
ethylbenzene  C8H10  excellent
ethylene  C2H4  excellent
ethylene chlorohydrin  C2H5ClO  excellent
ethylene cyanohydrin     excellent
ethylene dibromide  C2H4Br2  excellent
ethylene dichloride  C2H4Cl2  excellent
ethylene glycol  C2H6O2  excellent
ethylene glycol dibutyl ether  C10H22O2  excellent
ethylene glycol monoethyl ether  C4H10O2  excellent
ethylene oxide  C2H4O  excellent
ethylenediamine  C2H8N2  excellent
ethylenediamine hydrochloride   excellent
ethyleneimine  C2H5N  excellent
fats     excellent
ferric chloride  Cl3Fe  excellent
ferric nitrate     excellent
ferric sulfate  Fe2O12S3  excellent
ferrous chloride  Cl2Fe  excellent
ferrous sulfate (up to 40%)  FeO4S  excellent
fluoboric acid     poor
fluorine  F2  poor
fluosilicic acid     poor
formaldehyde  CH2O  excellent
formamide  CH3NO  excellent
formic acid  CH2O2  excellent
furfural  C5H4O2  excellent
furfuryl alcohol  C5H6O2  excellent
gallic acid  C7H6O5  excellent
glutamic acid     excellent
glycerol  C3H8O3  excellent
glycerophosphoric acid     excellent
glycidol  C3H6O2  excellent
glyoxylic acid  C2H2O3  excellent
guanidine nitrate     excellent
heptachlor  C10H5Cl7  excellent
heptaldehyde  C7H14O  excellent
heptane  C7H16  excellent
hexachlorobutadiene     excellent
hexachloroethane  C2Cl6  excellent
hexachloropentadiene     excellent
hexaethyl tetraphosphate  C12H30O13P4  excellent
hexafluoroxylene     excellent
hexamethylenediammonium adipate     excellent
hexamethylenetetramine  C6H12N4  excellent
hexane  C6H14  excellent
hexanetriol     excellent
hexanol     excellent
hexylene glycol  C6H14O2  excellent
hydrazine  H4N2  excellent
hydroabietyl alcohol     excellent
hydrobromic acid  BrH  excellent
hydrochloric acid  ClH  excellent
hydrocyanic acid  CHN  excellent
hydrofluoric acid  FH  poor
hydrogen  H2  excellent
hydrogen chloride  ClH  excellent
hydrogen fluoride  FH  poor
hydrogen peroxide  H2O2  excellent
hydrogen sulfide  H2S  excellent
hydroxyacetic acid     excellent
hydroxycitronellal     excellent
hypochlorous acid  ClHO  excellent
indole  C8H7N  excellent
iodoform  CHI3  excellent
iron potassium sulfate     excellent
isoamyl acetate  C7H14O2  excellent
isoamyl butyrate     excellent
isobornyl acetate     excellent
isobutyl acetate  C6H12O2  excellent
isobutyl chloride  C4H9Cl  excellent
isobutyl glycol     excellent
isobutyl isovalerate  C9H18O2 excellent
isobutyl oxide     excellent
isobutyl phosphate     excellent
isododecane     excellent
isophorone  C9H14O  excellent
isopropyl alcohol  C3H8O  excellent
isovaleric acid  C5H10O2  excellent
lactic acid  C3H6O3  excellent
lactic acid  C3H6O3  excellent
lauric acid  C12H24O2  excellent
lauryl alcohol  C12H26O  excellent
lead linoleate     excellent
lead nitrate  N2O6Pb  excellent
levulinic acid  C5H8O3  excellent
linseed oil     excellent
lithium carbonate CLi2O3  excellent
lithium hypochlorite     excellent
lithium sulfate  Li2O4S  limited / poor
lithopone     excellent
magnesium chloride  Cl2Mg  excellent
malic acid  C4H6O5  excellent
manganese chloride  Cl2Mn  excellent
manganese sulfate  MnO4S  excellent
mercaptans     excellent
mercuric chloride  Cl2Hg  excellent
mercuric cyanide     excellent
mercuric iodide     excellent
mercuric nitrate  HgN2O6  excellent
mercury  Hg  excellent
mesityl oxide  C6H10O  excellent
methallylamine     excellent
methyl alcohol  CH4O  excellent
methyl chloride  CH3Cl excellent
methyl iodide  CH3I  excellent
methylene chloride  CH2Cl2 excellent
methylisobutylcarbinol   excellent
milk     excellent
monochlorobutene     excellent
monoethanolamine     excellent
mononitrotoluene     excellent
morpholine  C4H9NO limited / poor
naphtha     excellent
naphthalene  C10H8  excellent
naphthalene chloride     excellent
naphthalenesulfonic acid     excellent
naphthols     excellent
nitric acid  HNO3  excellent
nitroanilines     excellent
nitrobenzene  C6H5NO2  excellent
nitroethane  C2H5NO2  excellent
nitrofluorobenzene     excellent
nitrogen tetroxide + water     limited / poor
nitroglycerine     limited / poor
nitroisopropylbenzene     excellent
nitromethane  CH3NO2  excellent
nitrophenols     excellent
nitrosulfuric acid     excellent
nitrosyl chloride  ClNO  excellent
nitrotoluene     excellent
nitrous oxide  N2O  excellent
octyl acetate  C10H20O2 excellent
octyl alcohol     excellent
octyl chloride  C8H17Cl excellent
oleic acid  C18H34O2  excellent
oxalic acid  C2H2O4  excellent
pentachloroethane  C2HCl5  excellent
peracetic acid     excellent
persulfuric acid     excellent
phenol-2,4-disulfonic acid     excellent
phenylacetic acid  C8H8O2  excellent
phenylacetic acid  C8H8O2  excellent
phenylacetic acid  C8H8O2  excellent
phosphoric acid (up to 95%) H3O4P  excellent
phosphoric acid (100%) H3O4P  limited / poor
phosphorous oxychloride     excellent
phosphorous pentachloride     excellent
phosphorous trichloride     excellent
picric acid  C6H3N3O7 excellent
potassium bisulfate     excellent
potassium bromide  BrK  excellent
potassium carbonate  CK2O3  poor
potassium chlorate  ClKO3  excellent
potassium chloride  ClK  excellent
potassium cyanide  CKN  excellent
potassium dichromate  Cr2K2O7 excellent
potassium ferricyanide     excellent
potassium hydroxide  HKO  excellent
potassium iodide  IK  excellent
potassium nitrate  KNO3  excellent
potassium persulfate  K2O8S2  excellent
propionic acid  C3H6O2  excellent
pyridine C5H5N  excellent
quinine sulfate  C40H50N4O8S  excellent
quinoline  C9H7N  excellent
silver nitrate  agNO3  excellent
sodium acetate  C2H3NaO2 excellent
sodium aluminate     excellent
sodium benzoate  C7H5NaO2  excellent
sodium bicarbonate  CHNaO3  excellent
sodium bisulfate  HNaO4S  excellent
sodium bisulfite  HNaO3S  excellent
sodium bitartrate     excellent
sodium bromate BrNaO3  excellent
sodium bromide  BrNa  excellent
sodium carbonate  CNa2O3 excellent
sodium chlorate  ClNaO3 excellent
sodium chloride  ClNa  excellent
sodium chromate  CrNa2O4  excellent
sodium citrate     excellent
sodium cyanide  CNNa  excellent
sodium dichromate  Cr2Na2O7 excellent
sodium dithionate     excellent
sodium dodecylbenzenesulfonate     excellent
sodium ferricyanide     excellent
sodium fluoride  FNa  poor
sodium hydroxide  HNaO  poor
sodium hypochlorite  ClNaO  excellent
sodium monophosphate     excellent
sodium nitrate  NNaO3  excellent
sodium nitrite  NNaO2  excellent
sodium perchlorate  ClNaO4  excellent
sodium peroxide  Na2O2  limited / poor
sodium phosphate     excellent
sodium salicylate     excellent
sodium sesquisilicate     excellent
sodium silicate     excellent
sodium sulfate  Na2O4S  excellent
sodium sulfide  Na2S  excellent
sodium sulfite  Na2O3S  excellent
sodium tartrate  C4H4Na2O6  excellent
sodium thiosulfate     excellent
sorbitol  C6H14O6  excellent
sorbose     excellent
stannic ammonium chloride     excellent
stannic chloride  Cl4Sn  excellent
stannous chloride  Cl2Sn  excellent
steam     excellent
stearic acid  C18H36O2  excellent
strontium nitrate  N2O6Sr  excellent
sugar     excellent
sulfur     excellent
sulphur chloride     excellent
sulphur dioxide  O2S  excellent
sulphur trioxide  O3S  poor
sulphuric acid  (up to 85%) H2O4S  excellent
sulphuric acid  (above 85%) H2O4S  poor
sulphurized oils     excellent
sulphurous acid  H2O3S  excellent
sulphuryl chloride     excellent
tannic acid     excellent
tartaric acid     excellent
toluene  C7H8  excellent
toluenesulfonyl chloride    excellent
trichloroethylene  C2HCl3  limited / poor
turpentine     excellent
uranyl nitrate     excellent
uranyl sulfate     excellent
vegetable oils     excellent
xylene     excellent
yeast     excellent
zinc chloride  Cl2Zn  limited / poor
zinc fluorosilicate     limited / poor
zinc sulfate  O4SZn  excellent