Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| technical grade | B* | – |
* estimated rating, given in the source without a temperature
Material comparison at 20 °C
Resistance overview
Aluminium shows good but limited resistance (B) to Acetic Anhydride at technical grade at 20 °C. The material can be used in contact with this chemical, but minor effects such as slight swelling or a small reduction in mechanical properties may occur over extended exposure periods. Regular inspection of components in service is advisable. The rating remains stable between 20 °C and 50 °C, which means this material can also handle moderately elevated process temperatures without additional risk.
Application context
Acetic Anhydride is commonly encountered in chemical processing and water treatment. Aluminium (Aluminium) is a metal typically used for vessels, heat exchangers, fittings and structural components. Because Acetic Anhydride is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.
Practical recommendation
Aluminium is suitable for use with Acetic Anhydride under normal conditions, but some minor effects on the material are expected over time. Periodic monitoring for swelling, softening, or weight change is recommended, especially for long-service components. For safety-critical or long-life applications, consider PP, FEP, PTFE instead, which are rated A for this chemical.
Did you know?
In industrial practice, Aluminium components exposed to Acetic Anhydride are typically inspected for swelling, discoloration, or loss of mechanical strength as early indicators of chemical attack.
Materials rated A or B at 20 °C
Based on the row for technical grade, 20 °C.
- Thermoplastics
- PP A, Acetal (POM) B
- Fluoropolymers
- PTFE A, FEP A
- Metals
- SS 316 A, SS 304 A
About Aluminium
Aluminium relies on a thin oxide layer. Strong acids, strong alkalis and mercury compounds destroy that layer.
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.
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.