Benzene (C6H6, CAS 71-43-2) is a clear, highly flammable aromatic hydrocarbon with a sweet odor, a specific gravity of about 0.876, a boiling point of 176°F (80°C) and a flash point near 12°F (-11°C). It is a known human carcinogen. Benzene is a major feedstock for ethylbenzene and styrene, cumene and phenol, cyclohexane and nylon, and detergents. Benzene storage is tightly regulated and needs vapor-controlled, grounded tanks. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Nylon is the most economical tank material for Benzene, rated Excellent. PVDF (Kynar®) is also rated Good or better. Avoid HDPE and polypropylene tanks; HDPE, CPVC and polypropylene fittings; Buna-N and EPDM gaskets. Rated Fair (contact us before use): PVC fittings.
How Benzene works with the plastics used to make our storage tanks.
| Material | Rating |
|---|---|
| HDPE | D Not Recommended |
| Polypropylene | D Not Recommended |
| Nylon | A Excellent |
| PVDF (Kynar®) | A Excellent |
How Benzene works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | D Not Recommended |
| PVC | C Fair |
| CPVC | D Not Recommended |
| Polypropylene | D Not Recommended |
| PVDF | A Excellent |
How Benzene works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | D Not Recommended |
| EPDM | D Not Recommended |
| Viton® | A Excellent |
How Benzene works with the metals used for fittings and bolts.
| Material | Rating |
|---|---|
| 316 Stainless Steel | B Good |
| Hastelloy | B Good |
| Titanium | — No Data |
| Aluminum | B Good |
Talk to a tank specialist