PVDF tanks by Bailiff Enterprises · Willis, Texas936-228-1520
Caustic Potash 45% (potassium hydroxide, KOH, CAS 1310-58-3) is a clear, colorless, strongly alkaline solution with a specific gravity of about 1.45. It is corrosive to skin and eyes and attacks aluminum and zinc. Liquid caustic potash is used for liquid soaps and detergents, potassium fertilizers and chemicals, biodiesel catalysts, alkaline batteries and food processing. It freezes at a lower temperature than caustic soda. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Potassium Hydroxide 30–55% Safety Data Sheet (SDS) – Olin
HDPE is the most economical tank material for Caustic Potash 45%, rated Excellent. Polypropylene is also rated Good or better. Avoid PVDF (Kynar®) tanks, PVDF fittings and aluminum hardware. Rated Fair (contact us before use): nylon tanks.
How Caustic Potash 45% works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE | $ | |
| Polypropylene | $$ | |
| Nylon | $$$ | |
| PVDF (Kynar®) | $$$$ |
How Caustic Potash 45% works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Caustic Potash 45% works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
Storing this chemical in PVDF?
PVDF tanks from 25 to 5,000 gallons with fittings installed. Confirm concentration and temperature with us before you order.
Send the chemical, concentration, temperature and size. We’ll match the tank and fittings and send a quote.