Ammonium Chloride 25% (NH4Cl, CAS 12125-02-9) solution is a clear, mildly acidic salt solution with a specific gravity of about 1.07. Ammonium chloride is used as a galvanizing and soldering flux, in metal finishing, dry-cell batteries, fertilizers, and as a clay stabilizer in oilfield fracturing and completion fluids. It is corrosive to many metals, so non-metallic storage tanks are commonly used. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
HDPE is the most economical tank material for Ammonium Chloride 25%, rated Excellent. Polypropylene, PVDF (Kynar®) and nylon are also rated Good or better. Avoid Hastelloy hardware.
How Ammonium Chloride 25% works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Ammonium Chloride 25% works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Ammonium Chloride 25% works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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