Potassium Acetate 50% (CH3COOK, CAS 127-08-2) solution is a clear, mildly alkaline liquid (pH about 10 to 11) with a specific gravity of about 1.27 to 1.30. It is a low-corrosion, chloride-free deicer for airport runways and bridges, a low-temperature heat transfer fluid, and a food preservative (E261). Do not store potassium acetate deicers in galvanized, zinc or brass systems. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Polypropylene is the most economical tank material for Potassium Acetate 50%, rated Excellent. PVDF (Kynar®) and HDPE are also rated Good or better. Avoid Viton® gaskets. Rated Fair (contact us before use): Buna-N gaskets and 316 stainless steel hardware.
How Potassium Acetate 50% works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Potassium Acetate 50% works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Potassium Acetate 50% works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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