At a glance
Ratings at 20 °C.
- Rated A, very good resistance
- PTFE, HDPE, PP, PVDF, Viton (FPM), SS 316, Aluminium, LDPE, ECTFE/ETFE, Acetal (POM), PMP (11)
- Rated B, good resistance
- EPDM, SS 304 (2)
- Rated C, limited resistance
- NBR, Polycarbonate, Polystyrene, SAN (4)
- Rated D, not resistant
- PVC Rigid, Nylon (PA), PVC Flexible (3)
- No data in the source
- FEP, Silicone, Polysulfone, PETG
- Rated lower at 50 °C than at 20 °C
- HDPE (A → C), PP (A → B), LDPE (A → C), Polycarbonate (C → D)
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- CAS number
- 7553-56-2
- Formula
- I2
- Hazard symbols in the source
- Xn (harmful) (pre-GHS European symbols; check the current safety data sheet)
- Flammable
- yes
- Name in the source (German)
- Jodtinktur
Resistance table
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | A | C | |
| LDPE | A | C | |
| PP | A | B | |
| PVC Rigid | D | D | |
| PVC Flexible | D | D | |
| PMP | A | A | |
| Polystyrene | C | C | |
| SAN | C | C | |
| Polycarbonate | C | D | |
| Acetal (POM) | A | A | |
| Nylon (PA) | D | D | |
| Fluoropolymers | |||
| PTFE | A | A | |
| PVDF | A | A | |
| ECTFE/ETFE | A | A | |
| Elastomers | |||
| EPDM | B | – | |
| Viton (FPM) | A | A | |
| NBR | C | C | |
| Metals | |||
| SS 316 | A | – | |
| SS 304 | B | – | |
| Aluminium | A | – | |
Not rated in the source, so not in the table: PETG, Polysulfone, FEP, 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 Iodine Tincture at high concentrations?
The materials with an A rating (resistant) for Iodine Tincture at 20 °C are: PTFE, HDPE, PP, PVDF, Viton (FPM), SS 316, Aluminium, LDPE. These can generally be used in direct contact.
Which materials should be avoided with Iodine Tincture?
Materials rated D (not resistant) for Iodine Tincture are: PVC Rigid, Nylon (PA), PVC Flexible. These should not be used in contact with Iodine Tincture.
Does temperature affect chemical resistance to Iodine Tincture?
Yes. 4 of 16 tested materials show a worse rating at 50 °C than at 20 °C for Iodine Tincture. Materials affected include: HDPE, PP, LDPE, Polycarbonate.
Is PTFE safe for Iodine Tincture?
PTFE is rated A for Iodine Tincture 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.