Compatibility Rating
📊 Note: Nitric Acid resistance varies by concentration. Data available for: 1-10 %, 100 %, 50 %, 66 %, 70 %. Search for specific concentrations →
Why is PP rated this way to Nitric Acid?
PP is not recommended for use with Nitric Acid. Significant degradation or failure is expected.
⚠️ When NOT to use PP
Avoid using Polypropylene with concentrated oxidizing acids, chlorinated solvents, and aromatic hydrocarbons. Becomes brittle below 0°C.
Comparison Table — All Materials for Nitric Acid
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | B | D |
| LDPE | C | D |
| PP | D | D |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | D | D |
| Viton (FPM) | B | C |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | B |
| SS 304 | A | B |
| Aluminium | D | D |
| PVC Rigid | C | D |
| PVC Flexible | NR | NR |
| PMP | B | C |
| Polystyrene | D | D |
| SAN | NR | NR |
| Polycarbonate | D | D |
| PETG | D | D |
| Acetal (POM) | D | D |
| Nylon (PA) | D | D |
| Polysulfone | D | D |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
FAQ
Is Polypropylene (PP) resistant to Nitric Acid?
Polypropylene (PP) has Poor (D) resistance to Nitric Acid at 20°C.
Can I store Nitric Acid in Polypropylene (PP)?
Caution - Polypropylene (PP) is rated D for Nitric Acid.
📊 Note: Nitric Acid resistance varies by concentration. Data available for: 1-10 %, 100 %, 50 %, 66 %, 70 %. Search for specific concentrations →