Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| aqueous | B* | – | |
| concentration not stated | B* | – |
* estimated rating, given in the source without a temperature
Material comparison at 20 °C
Resistance overview
Nylon (PA) maintains a consistent rating of B across all 2 tested concentrations (aqueous) of Calcium Sulfide at 20 °C. The fact that the rating does not change with concentration within the tested range simplifies material selection, though the boundary conditions beyond this range remain untested. 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
Calcium Sulfide is commonly encountered in surface cleaning and laboratory work. Nylon (PA) (Polyamide (nylon)) is a thermoplastic typically used for tanks, piping, containers and liners. Because Calcium Sulfide is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.
Practical recommendation
Nylon (PA) is suitable for use with Calcium Sulfide 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 Acetal (POM), PP, PVC Rigid instead, which are rated A for this chemical.
Did you know?
Temperature is often the deciding factor when selecting materials for Calcium Sulfide: even materials rated A at 20 °C may lose performance at elevated temperatures.
Materials rated A or B at 20 °C
Based on the row for concentration not stated, 20 °C.
- Thermoplastics
- PP A, PVC Rigid A, Acetal (POM) A, Polycarbonate B
- Fluoropolymers
- PTFE A, PVDF A, FEP A
- Elastomers
- EPDM A, Viton (FPM) A
- Metals
- SS 316 A, SS 304 A, Aluminium A
About Nylon (PA)
Polyamide (nylon) resists fuels, oils and many solvents. Mineral acids, even dilute, and strong oxidisers attack it, and it absorbs water.
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.