Compatibility Rating
📊 Note: Phosphoric Acid resistance varies by concentration. Data available for: 1-5 %, 20%, 30 %, 85 %. Search for specific concentrations →
Why is NBR rated this way to Phosphoric Acid?
NBR has limited resistance to Phosphoric Acid. Short-term exposure may be acceptable, but prolonged contact is not recommended.
⚠️ When NOT to use NBR
Avoid using Nitrile Rubber (Buna-N) with strong oxidizers, ketones, chlorinated solvents, and ozone. Not suitable for polar solvents.
Comparison Table — All Materials for Phosphoric Acid
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | A | A |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | B |
| SS 304 | A | C |
| Aluminium | D | D |
| PVC Rigid | NR | NR |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| Polycarbonate | B | B |
| PETG | NR | NR |
| Acetal (POM) | D | D |
| Nylon (PA) | D | D |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 100°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: Viton for wider chemical range. View all materials for Phosphoric Acid →
FAQ
Is NBR resistant to Phosphoric Acid?
NBR has Fair (C) resistance to Phosphoric Acid at 20°C.
Can I store Phosphoric Acid in NBR?
Caution - NBR is rated C for Phosphoric Acid.
📊 Note: Phosphoric Acid resistance varies by concentration. Data available for: 1-5 %, 20%, 30 %, 85 %. Search for specific concentrations →