Ferric Chloride (FECL3)is a brown, acidic, and corrosive solution when it is dissolved in water. It is used in sewage treatment and drinking water production. It is also used to etch copper and copper based metals. Do not mix dry Ferric Chloride with water in plastic tanks. It causes an exothermic reaction that can give off enough heat to cause tank failure. Ferric Chloride is also known as IRON(III) OXIDE and IRON TRICHLORIDE.
HDPE is the most economical tank material for Ferric Chloride, rated Excellent. Polypropylene and PVDF (Kynar®) are also rated Good or better. Rated Fair (contact us before use): nylon tanks.
How Ferric Chloride works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE $ | $$$$ | A Excellent |
| Polypropylene $$ | $$$$ | A Excellent |
| Nylon $$$ | $$$$ | C Fair |
| PVDF (Kynar®) $$$$ | $$$$ | A Excellent |
How Ferric Chloride works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | A Excellent |
| PVC | A Excellent |
| CPVC | A Excellent |
| Polypropylene | A Excellent |
| PVDF | A Excellent |
How Ferric Chloride works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | A Excellent |
| EPDM | A Excellent |
| Viton® | A Excellent |
How Ferric Chloride works with the metals used for fittings and bolts.
| Material | Rating |
|---|---|
| 316 Stainless Steel | B Good |
| Hastelloy | B Good |
| Titanium | A Excellent |
| Aluminum | — No Data |
Storing this chemical in polypropylene?
Polypropylene tanks from 25 to 6,000 gallons with polypropylene fittings installed. Confirm concentration and temperature with us before you order.
Send the chemical, concentration, temperature and size. We’ll match the tank and fittings and send a quote.