Compatibility Rating
📊 Note: Ammonium Hydroxide resistance varies by concentration. Data available for: 30 %, 5 %. Search for specific concentrations →
Why is PTFE resistant to Ammonium Hydroxide?
PTFE shows excellent resistance to Ammonium Hydroxide due to the extremely strong carbon-fluorine bonds making it virtually inert to almost all chemicals.
⚠️ When NOT to use PTFE
Avoid using PTFE (Teflon) with molten alkali metals, fluorine gas at high temperatures, and certain fluorinated compounds. It is the most chemically resistant plastic available.
Comparison Table — All Materials for Ammonium Hydroxide
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | C |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | C | C |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | B |
| PVC Flexible | A | C |
| PMP | A | A |
| Polystyrene | B | C |
| SAN | B | B |
| Polycarbonate | D | D |
| PETG | B | D |
| Acetal (POM) | A | B |
| Nylon (PA) | C | C |
| Polysulfone | B | C |
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 260°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: None — PTFE is the gold standard. View all materials for Ammonium Hydroxide →
FAQ
Is PTFE resistant to Ammonium Hydroxide?
PTFE has Excellent (A) resistance to Ammonium Hydroxide at 20°C.
Can I store Ammonium Hydroxide in PTFE?
Yes, PTFE is rated A for Ammonium Hydroxide.
📊 Note: Ammonium Hydroxide resistance varies by concentration. Data available for: 30 %, 5 %. Search for specific concentrations →