Compatibility Rating
Why is PVC Flexible resistant to Sodium Nitrite?
PVC Flexible shows excellent resistance to Sodium Nitrite due to similar chemistry to rigid PVC but with plasticizers that can be extracted by some solvents.
⚠️ When NOT to use PVC Flexible
Avoid using PVC (Flexible/Plasticized) with the same solvents as rigid PVC, plus any chemical that extracts plasticizers. Generally less resistant than rigid PVC.
Comparison Table — All Materials for Sodium Nitrite
| 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 | B | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | NR |
| PVC Rigid | A | NR |
| PVC Flexible | A | NR |
| PMP | A | NR |
| Polystyrene | A | A |
| SAN | A | A |
| Polycarbonate | B | B |
| PETG | A | A |
| Acetal (POM) | A | A |
| Nylon (PA) | A | NR |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Good resistance at both 20°C and 50°C. Maximum service temperature for this material is 50°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PVC Rigid or EPDM. View all materials for Sodium Nitrite →
FAQ
Is PVC Flexible resistant to Sodium Nitrite?
PVC Flexible has Excellent (A) resistance to Sodium Nitrite at 20°C. Excellent resistance - recommended for continuous use.
Can I store Sodium Nitrite in PVC Flexible containers?
Yes, PVC Flexible is rated A (Excellent) for Sodium Nitrite.