Chlorine Water is a dilute solution of chlorine in water containing hypochlorous acid (HOCl) and hydrochloric acid. It has a yellow-green tint and a strong chlorine odor. It is a powerful oxidizer and disinfectant, produced in chlorinators, scrubbers and chlor-alkali processes. It is used for water disinfection, bleaching, and metal and mineral processing. Chlorine water tanks need vapor control because chlorine gas escapes from solution. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Safety data: Chlorine Safety Data Sheet (SDS) – Olin
PVDF (Kynar®) is the recommended tank material for Chlorine Water, rated Good. Avoid polypropylene tanks, polypropylene fittings, Buna-N gaskets and aluminum hardware. Rated Fair (contact us before use): HDPE and nylon tanks; HDPE fittings; EPDM gaskets; 316 stainless steel hardware.
How Chlorine Water works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE $ | $$$$ | C Fair |
| Polypropylene $$ | $$$$ | D Not Recommended |
| Nylon $$$ | $$$$ | C Fair |
| PVDF (Kynar®) $$$$ | $$$$ | B Good |
How Chlorine Water works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | C Fair |
| PVC | A Excellent |
| CPVC | A Excellent |
| Polypropylene | D Not Recommended |
| PVDF | B Good |
How Chlorine Water works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | D Not Recommended |
| EPDM | C Fair |
| Viton® | A Excellent |
How Chlorine Water works with the metals used for fittings and bolts.
| Material | Rating |
|---|---|
| 316 Stainless Steel | C Fair |
| Hastelloy | A Excellent |
| Titanium | — No Data |
| Aluminum | D Not Recommended |
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.