Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| dilute | A | – |
Material comparison at 20 °C
Resistance overview
PVC Rigid shows very good resistance (A) to Potassium Hypochlorite at dilute at 20 °C, meaning the material remains essentially unaffected by this chemical under standard laboratory test conditions. 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
Potassium Hypochlorite is commonly encountered in bleaching and waste treatment. PVC Rigid (Rigid (unplasticised) polyvinyl chloride) is a thermoplastic typically used for tanks, piping, containers and liners. Because Potassium Hypochlorite is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.
Practical recommendation
PVC Rigid can be used with confidence for Potassium Hypochlorite containment and handling. The A rating indicates that the material shows no significant change in weight, dimensions, or mechanical properties after prolonged contact under test conditions. This holds true at both 20 °C and 50 °C, giving a good safety margin for typical process environments.
Did you know?
The ratings shown here apply to pure Potassium Hypochlorite in contact with the base thermoplastic. In real-world applications, additives, pigments, and fillers in the material can shift resistance in either direction.
Materials rated A or B at 20 °C
Based on the row for dilute, 20 °C.
- Thermoplastics
- HDPE A, PP A, LDPE A, PVC Flexible A, Polysulfone A, PMP A
- Fluoropolymers
- PTFE A, PVDF A, FEP A
- Elastomers
- Viton (FPM) A
- Metals
- SS 316 B
About PVC Rigid
Rigid PVC resists acids, alkalis and salt solutions well. Ketones, esters, aromatic and chlorinated solvents dissolve or swell it. Service temperature is limited to about 60 °C.
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.