PVDF tanks by Bailiff Enterprises · Willis, Texas936-228-1520
Sodium Hydroxide (50%) (NaOH, CAS 1310-73-2) is a clear, highly corrosive alkaline solution with a specific gravity of about 1.53 that is made in the chlor-alkali process alongside chlorine. It is used in water and wastewater pH control, chemical manufacturing, pulp and paper, aluminum processing, food processing, soaps and cleaning chemicals. Because 50% NaOH starts to freeze near 54°F (12°C), outdoor sodium hydroxide tanks are often heat traced and insulated. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Sodium Hydroxide Solution Safety Data Sheet (SDS) – Formosa Plastics USA
Polypropylene is the most economical tank material for Sodium Hydroxide (50%), rated Excellent. Nylon and HDPE are also rated Good or better. Avoid PVDF (Kynar®) tanks, PVDF fittings and Viton® gaskets. Rated Fair (contact us before use): Hastelloy hardware.
How Sodium Hydroxide (50%) works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE | $ | |
| Polypropylene | $$ | |
| Nylon | $$$ | |
| PVDF (Kynar®) | $$$$ |
How Sodium Hydroxide (50%) works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Sodium Hydroxide (50%) 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.