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Chemical Compatibility: FFKM (Perfluoroelastomer)
Potassium Chloride to Potassium Fluoride
Chemical compatibility ratings for elastomers and engineering materials exposed to various chemicals — resistance grades from A (excellent) to D (not recommended), plus X (insufficient data)
| material | chemical | parker compound code | rating | rating code | temp max C (degC) | temp max F (degF) | temp min C (degC) | temp min F (degF) |
|---|---|---|---|---|---|---|---|---|
| FFKM (Perfluoroelastomer) | Potassium Chloride | N0674-70 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Chromates | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Citrate | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Cupro Cyanide | N0674-70 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Cyanate | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Cyanide | N0674-70 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Dichromate | N0674-70 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Diphosphate | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Ferricyanide | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
| FFKM (Perfluoroelastomer) | Potassium Fluoride | E0540-80 | A-Excellent | A | 320 | 608 | -26 | -15 |
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