Ethanol (ethyl alcohol, C2H5OH, CAS 64-17-5) is a clear, colorless, flammable liquid with a specific gravity of about 0.789, a boiling point of 173°F (78°C) and a flash point of about 55°F (13°C). Ethanol is blended into gasoline (E10, E85), and is used as a solvent, in hand sanitizers and disinfectants, beverages, pharmaceuticals and extracts. Ethanol tanks need grounding, vapor venting and fire protection. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
HDPE is the most economical tank material for Ethanol, rated Excellent. Polypropylene and nylon are also rated Good or better. Rated Fair (contact us before use): PVC fittings and Buna-N gaskets.
How Ethanol works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE $ | $$$$ | A Excellent |
| Polypropylene $$ | $$$$ | A Excellent |
| Nylon $$$ | $$$$ | A Excellent |
| PVDF (Kynar®) $$$$ | $$$$ | — No Data |
How Ethanol works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | A Excellent |
| PVC | C Fair |
| CPVC | B Good |
| Polypropylene | A Excellent |
| PVDF | — No Data |
How Ethanol works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | C Fair |
| EPDM | A Excellent |
| Viton® | A Excellent |
How Ethanol works with the metals used for fittings and bolts.
| Material | Rating |
|---|---|
| 316 Stainless Steel | A Excellent |
| Hastelloy | A Excellent |
| Titanium | — No Data |
| Aluminum | B Good |
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.