PVDF tanks by Bailiff Enterprises · Willis, Texas936-228-1520
Sulfur Dioxide (SO2, CAS 7446-09-5) is a colorless, toxic gas with a sharp, choking odor that boils at 14°F (-10°C) and is shipped as a liquid under pressure. Dissolved in water it forms sulfurous acid. SO2 is used for dechlorination, wine and food preservation, pulp bleaching, metal ore processing and sulfite manufacture. Anhydrous SO2 requires pressure vessels, while dilute sulfurous acid can be held in vented tanks. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Sulfur Dioxide Safety Data Sheet (SDS) – INEOS Calabrian
Polypropylene is the most economical tank material for Sulfur Dioxide, rated Excellent. PVDF (Kynar®) is also rated Good or better. Avoid HDPE tanks, HDPE fittings and Buna-N gaskets. Rated Fair (contact us before use): nylon tanks and Hastelloy hardware.
How Sulfur Dioxide works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE | $ | |
| Polypropylene | $$ | |
| Nylon | $$$ | |
| PVDF (Kynar®) | $$$$ |
How Sulfur Dioxide works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Sulfur Dioxide 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.