Compatibility Rating
At 20°C (68°F)
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
Good
Good resistance - suitable for intermittent contact
Why is Polycarbonate resistant to Sodium Sulfite?
Polycarbonate shows good resistance to Sodium Sulfite due to its carbonate group structure, though it has limited chemical resistance compared to other engineering plastics.
⚠️ When NOT to use Polycarbonate
Avoid using Polycarbonate with alkalis, amines, ketones, esters, and many organic solvents. Prone to stress cracking.
Comparison Table — All Materials for Sodium Sulfite
| 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 | C |
| PVC Rigid | A | C |
| PVC Flexible | A | C |
| PMP | A | NR |
| Polystyrene | A | A |
| SAN | A | A |
| Polycarbonate | B | B |
| PETG | B | B |
| 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 120°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: Polysulfone or PETG. View all materials for Sodium Sulfite →
FAQ
Is Polycarbonate resistant to Sodium Sulfite?
Polycarbonate has Good (B) resistance to Sodium Sulfite at 20°C. Good resistance - suitable for intermittent contact.
Can I store Sodium Sulfite in Polycarbonate containers?
Yes, Polycarbonate is rated B (Good) for Sodium Sulfite.