Sodium Nitrate (NaNO3, CAS 7631-99-4) is a white, highly water-soluble salt and an oxidizer. It is used in fertilizers, explosives and pyrotechnics, glass and enamel manufacturing, molten salt heat transfer and solar thermal storage, metal treating, and as a food preservative. Sodium nitrate solutions should be kept away from combustible materials and reducing agents. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
HDPE is the most economical tank material for Sodium Nitrate, rated Excellent. Polypropylene, nylon and PVDF (Kynar®) are also rated Good or better.
How Sodium Nitrate works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Sodium Nitrate works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Sodium Nitrate works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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