Ammonia 10% (Aqua Ammonia) is ammonium hydroxide (NH4OH, CAS 1336-21-6), a clear solution of ammonia gas in water with a strong pungent odor and a specific gravity of about 0.96. It is used for pH control, household and industrial cleaners, SCR and SNCR NOx control, chloramine formation in water treatment, and fertilizer. Aqua ammonia tanks should be closed and vented to control ammonia vapor release. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Ammonium Hydroxide Safety Data Sheet (SDS) – Tanner Industries
HDPE is the most economical tank material for Ammonia 10%, rated Excellent. Polypropylene, nylon and PVDF (Kynar®) are also rated Good or better. Avoid Viton® gaskets. Rated Fair (contact us before use): titanium hardware.
How Ammonia 10% works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Ammonia 10% works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Ammonia 10% works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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