Sodium Bisulfate (NaHSO4, CAS 7681-38-1) is a dry acid that forms strongly acidic solutions with a specific gravity of about 1.36. It is used to lower pH in swimming pools and spas, in metal finishing and cleaning products, as a food acidulant, for poultry litter treatment and in toilet bowl cleaners. Sodium bisulfate solutions are corrosive to steel and concrete. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Polypropylene is the most economical tank material for Sodium Bisulfate, rated Excellent. Nylon, PVDF (Kynar®) and HDPE are also rated Good or better. Avoid aluminum hardware. Rated Fair (contact us before use): 316 stainless steel hardware.
How Sodium Bisulfate works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Sodium Bisulfate works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Sodium Bisulfate works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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