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Use these charts to check chemical compatability with your swivel joint metal and seal materials.

A . B . C . D . E . F . G . H . I . J . K . L . M . N . O . P . R . S . T . U . V . W . X . Z

A = Recommended
C = Moderate to Sever
B = Minor to Moderate Effect
* = Insufficient Data
U = Unsatisfactory
Blank = No Data
 AluminumBronzeDuctile IronCarbon Steel316 StainlessBunaViton™Teflon™EPTNeopreneNitrileEPDMFluorosiliconeDelrinRyton
Naphtha     C  UUCUB  
Naphtha (Aliphatic)ABBABAAAU AU  A
Naphtha (Aromatic)ABBABBAAU BU  A
Naphtha (V.M. & P.)ABBABBAAU BU  A
Naphthalene     U  UUUUA* 
Naphthenic Acid     B  UUBUA  
Natural Gas     A  UAAUC  
Neatsfoot Oil****AAAABUABA A
Neon     A  AAAAA  
Neville Acid     U  BUUBB  
Nickel Acetate     B  ABBAU  
Nickel Ammonium SulfateUUUU*AAAA AA  *
Nickel ChlorideUUUUBAAAABAAA *
Nickel Salts     A  ABAAA  
Nickel SulfateUBUUAAAAAAAAA**
Niter Cake     A  AAAAA  
Nitric Acid 30%UUUUAUAAU UU  U
Nitric Acid 50%UUUUAUBAU UU  U
Nitric Acid 70%UUUUAUBAU UU  U
Nitric Acid 100%AUUUAUBAU UU  U
Nitric Acid (1) 3 Molar     U  BUUBC  
Nitric Acid Concentrated     U  UUUUU  
Nitric Acid Dilute     U  BAUBB  
Nitric Acid (1)
Red Fuming (RFNA)
     U  UUUUU  
Nitro Acid (1)
Inhibited Red Fuming (IRFNA)
     U  UUUUU  
Nitro FluorobenzeneCUBBBBUAC BC  A
NitrobenzeneBBBABUBAUUUUUBA
Nitrobenzine     *  CU*CA  
NitrocumeneCUBBBBUAC BC  A
NitroethaneAAAAAU*ABCUBU A
Nitrogen     A  AAAAA  
Nitrogen Tetroxide (N2O4) (1)     U  UUUUU  
Nitromethane     U  BCUBU* 
NitropropaneAAAAAUUABUUBU A
Nitric Acid Aq. 0.1%             U 
Nitric Acid Aq. 10%BUUUAUAAU UU UA
NonenesAAAAAAAAU AU  A