At a glance
Ratings at 20 °C.
- Rated A, very good resistance
- PTFE, SS 316, SS 304, Aluminium, FEP, ECTFE/ETFE, Nylon (PA), Acetal (POM), PETG (9)
- Rated B, good resistance
- HDPE, EPDM, LDPE, Polysulfone, PMP (5)
- Rated C, limited resistance
- PP, PVDF, PVC Rigid (3)
- Rated D, not resistant
- Viton (FPM), NBR, Polycarbonate, PVC Flexible, Polystyrene, SAN (6)
- No data in the source
- Silicone
- Rated lower at 50 °C than at 20 °C
- PVC Rigid (C → D), LDPE (B → C), ECTFE/ETFE (A → C), Acetal (POM) (A → B), Polysulfone (B → C), PMP (B → C)
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- CAS number
- 123-91-1
- Formula
- C4H8O2
- Hazard symbols in the source
- F (flammable), Xn (harmful) (pre-GHS European symbols; check the current safety data sheet)
- Flammable
- yes
- Also listed as
- 1,4-Dioxane
- Name in the source (German)
- Dioxan
Resistance table
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | B | B | |
| LDPE | B | C | |
| PP | C | C | |
| PVC Rigid | C | D | |
| PVC Flexible | D | D | |
| PMP | B | C | |
| Polystyrene | D | D | |
| SAN | D | D | |
| Polycarbonate | D | D | |
| PETG | A | – | |
| Acetal (POM) | A | B | |
| Nylon (PA) | A | – | |
| Polysulfone | B | C | |
| Fluoropolymers | |||
| PTFE | A | A | |
| FEP | A | A | |
| PVDF | C | C | |
| ECTFE/ETFE | A | C | |
| Elastomers | |||
| EPDM | B | – | |
| Viton (FPM) | D | D | |
| NBR | D | D | |
| Metals | |||
| SS 316 | A | – | |
| SS 304 | A | – | |
| Aluminium | A | A | |
Not rated in the source, so not in the table: Silicone
Rating scale
- A very good resistance
- B good resistance
- C limited resistance
- D not resistant
- – no data
- K no general statement possible
A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.
Frequently Asked Questions
Which materials resist Dioxane at high concentrations?
The materials with an A rating (resistant) for Dioxane at 20 °C are: PTFE, SS 316, SS 304, Aluminium, FEP, ECTFE/ETFE, Nylon (PA), Acetal (POM). These can generally be used in direct contact.
Which materials should be avoided with Dioxane?
Materials rated D (not resistant) for Dioxane are: Viton (FPM), NBR, Polycarbonate, PVC Flexible, Polystyrene, SAN. These should not be used in contact with Dioxane.
Does temperature affect chemical resistance to Dioxane?
Yes. 6 of 18 tested materials show a worse rating at 50 °C than at 20 °C for Dioxane. Materials affected include: PVC Rigid, LDPE, ECTFE/ETFE, Acetal (POM), Polysulfone, PMP.
Is PTFE safe for Dioxane?
PTFE is rated A for Dioxane at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.
About this data
The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.
A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.
Chemicals with a similar resistance profile
Same 20 °C rating on the share of materials shown.