Zinc Chloride (ZnCl2, CAS 7646-85-7) is a white, highly soluble salt (solid density about 2.9) usually stored as a dense, acidic solution of up to about 2.0 specific gravity. It is corrosive and toxic to aquatic life. Zinc chloride is used as a flux for galvanizing and soldering, in dry-cell batteries, textile processing, wood preservation, oil refining and as a dehydrating agent. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
HDPE is the most economical tank material for Zinc Chloride, rated Excellent. Polypropylene, nylon and PVDF (Kynar®) are also rated Good or better. Avoid aluminum hardware.
How Zinc Chloride works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | |
| Polypropylene | |
| Nylon | |
| PVDF (Kynar®) |
How Zinc Chloride works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Zinc Chloride works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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