Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| 10 % | B | B | |
| saturated | B | B |
Material comparison at 20 °C
Resistance overview
Viton (FPM) maintains a consistent rating of B across all 2 tested concentrations (10 %, saturated) of Ammonium Nitrate 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
Ammonium Nitrate is commonly encountered in water treatment and electroplating. Viton (FPM) (Fluoroelastomer (FKM/FPM)) is an elastomer typically used for seals, O-rings, hoses and flexible connections. The compatibility between these two is therefore an important consideration for engineers and procurement teams selecting containment, transfer, or processing equipment.
Practical recommendation
Viton (FPM) is suitable for use with Ammonium Nitrate 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 HDPE, Nylon (PA), Polycarbonate instead, which are rated A for this chemical.
Did you know?
Temperature is often the deciding factor when selecting materials for Ammonium Nitrate: 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 10 %, 20 °C.
- Thermoplastics
- HDPE A, PP A, PVC Rigid A, Nylon (PA) A, Acetal (POM) B, Polycarbonate A, Polystyrene A, Polysulfone A, PETG B
- Fluoropolymers
- PTFE A, PVDF A, FEP A, ECTFE/ETFE A
- Elastomers
- EPDM A, NBR A
- Metals
- SS 316 A, SS 304 A, Aluminium A
About Viton (FPM)
Fluoroelastomer (Viton, FKM/FPM) resists fuels, oils and many acids. Ketones, esters, amines and hot water or steam attack it.
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.