Polypropylene tanks by Bailiff Enterprises · Willis, Texas936-228-1520
Nitrous Acid (HNO2, CAS 7782-77-6) is a weak, unstable acid that exists only in cold, dilute aqueous solution. It is normally made on site by mixing sodium nitrite with a mineral acid and used immediately. It decomposes to nitric oxide and nitrogen dioxide fumes. It is used in diazotization reactions to make azo dyes and pigments, and in some pharmaceutical synthesis. Storage is short-term, in cool, vented tanks. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Polypropylene is the most economical tank material for Nitrous Acid, rated Excellent. PVDF (Kynar®) is also rated Good or better. Avoid Hastelloy and aluminum hardware.
How Nitrous Acid works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE | $ | |
| Polypropylene | $$ | |
| Nylon | $$$ | |
| PVDF (Kynar®) | $$$$ |
How Nitrous Acid works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | |
| PVC | |
| CPVC | |
| Polypropylene | |
| PVDF |
How Nitrous Acid works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | |
| EPDM | |
| Viton® |
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.