At a glance
Based on the row for aqueous, 20 °C.
- Rated A, very good resistance
- PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, NBR, SS 316, SS 304, FEP, ECTFE/ETFE, Polycarbonate, Polystyrene (13)
- Rated B, good resistance
- Viton (FPM) (1)
- Rated C, limited resistance
- Nylon (PA), PVC Flexible (2)
- Rated D, not resistant
- Aluminium, Acetal (POM) (2)
- No data in the source
- LDPE, Silicone, Polysulfone, PETG, PMP, SAN
- Rated lower at 50 °C than at 20 °C
- PVC Rigid (A → C)
Based on the row for aqueous, 20 °C.
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- CAS number
- 22538-92-7
- Formula
- H3AsO4
- Hazard symbols in the source
- T (toxic), N (dangerous for the environment) (pre-GHS European symbols; check the current safety data sheet)
- Concentrations listed
- aqueous; concentration not stated
- Name in the source (German)
- Arsensäure
Rating by concentration
Show as a table
| Material | aqueous | concentration not stated |
|---|---|---|
| Thermoplastics | ||
| HDPE | A | A |
| LDPE | – | – |
| PP | A | A |
| PVC Rigid | A | A |
| PVC Flexible | C | C |
| PMP | – | – |
| Polystyrene | A | A |
| SAN | – | – |
| Polycarbonate | A | A |
| PETG | – | – |
| Acetal (POM) | D | D |
| Nylon (PA) | C* | C* |
| Polysulfone | – | – |
| Fluoropolymers | ||
| PTFE | A | A |
| FEP | A | – |
| PVDF | A | A |
| ECTFE/ETFE | A | A |
| Elastomers | ||
| EPDM | A | A |
| Viton (FPM) | B | B |
| NBR | A | A |
| Silicone | – | – |
| Metals | ||
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | D | D |
* estimated rating, given in the source without a temperature
Resistance table: Arsenic Acid, aqueous
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | A | A | |
| LDPE | – | B | |
| PP | A | A | |
| PVC Rigid | A | C | |
| PVC Flexible | C | – | |
| Polystyrene | A | A | |
| Polycarbonate | A | – | |
| Acetal (POM) | D | D | |
| Nylon (PA) | C* | – | |
| Fluoropolymers | |||
| PTFE | A | A | |
| FEP | A | A | |
| PVDF | A | A | |
| ECTFE/ETFE | A | A | |
| Elastomers | |||
| EPDM | A | – | |
| Viton (FPM) | B | B | |
| NBR | A | A | |
| Metals | |||
| SS 316 | A | A | |
| SS 304 | A | – | |
| Aluminium | D | D | |
* estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PMP, SAN, PETG, Polysulfone, Silicone
Resistance table: Arsenic Acid, concentration not stated
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | A | A | |
| LDPE | – | B | |
| PP | A | A | |
| PVC Rigid | A | C | |
| PVC Flexible | C | – | |
| Polystyrene | A | A | |
| Polycarbonate | A | – | |
| Acetal (POM) | D | D | |
| Nylon (PA) | C* | – | |
| Fluoropolymers | |||
| PTFE | A | A | |
| PVDF | A | A | |
| ECTFE/ETFE | A | A | |
| Elastomers | |||
| EPDM | A | – | |
| Viton (FPM) | B | B | |
| NBR | A | A | |
| Metals | |||
| SS 316 | A | A | |
| SS 304 | A | – | |
| Aluminium | D | D | |
* estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PMP, SAN, 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 Arsenic Acid at high concentrations?
The materials with an A rating (resistant) for Arsenic Acid at 20 °C are: PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, NBR, SS 316. These can generally be used in direct contact.
Which materials should be avoided with Arsenic Acid?
Materials rated D (not resistant) for Arsenic Acid are: Aluminium, Acetal (POM). These should not be used in contact with Arsenic Acid.
Does temperature affect chemical resistance to Arsenic Acid?
Yes. 1 of 13 tested materials show a worse rating at 50 °C than at 20 °C for Arsenic Acid. Materials affected include: PVC Rigid.
Is PTFE safe for Arsenic Acid?
PTFE is rated A for Arsenic Acid at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.
Does concentration affect chemical resistance to Arsenic Acid?
Yes. Arsenic Acid is tested at 2 concentrations (aqueous, concentration not stated). Some materials change their rating depending on the concentration.
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.