At a glance
Based on the row for 10 %, 20 °C.
- Rated A, very good resistance
- PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, SS 316, SS 304, Aluminium, LDPE, FEP (11)
- Rated B, good resistance
- Acetal (POM) (1)
- Rated C, limited resistance
- Viton (FPM) (1)
- Rated D, not resistant
- NBR, Nylon (PA), Polycarbonate (3)
- No data in the source
- ECTFE/ETFE, Silicone, PVC Flexible, Polystyrene, Polysulfone, PETG, PMP, SAN
- Rated lower at 50 °C than at 20 °C
- PVDF (A → C), Viton (FPM) (C → D), SS 316 (A → C), SS 304 (A → C)
Based on the row for 10 %, 20 °C.
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- CAS number
- 302-01-2
- Formula
- N2H4
- Hazard symbols in the source
- T (toxic) (pre-GHS European symbols; check the current safety data sheet)
- Flammable
- yes
- Concentrations listed
- 10 %
- Also listed as
- Diamide
- Name in the source (German)
- Hydrazin
Resistance table: Hydrazine, 10 %
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | A | A | |
| LDPE | A | – | |
| PP | A | A | |
| PVC Rigid | A | – | |
| Polycarbonate | D* | – | |
| Acetal (POM) | B | – | |
| Nylon (PA) | D | D | |
| Fluoropolymers | |||
| PTFE | A | – | |
| FEP | A | – | |
| PVDF | A | C | |
| Elastomers | |||
| EPDM | A | – | |
| Viton (FPM) | C | D | |
| NBR | D | D | |
| Metals | |||
| SS 316 | A | C | |
| SS 304 | A | C | |
| Aluminium | A | – | |
* estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PVC Flexible, PMP, Polystyrene, SAN, PETG, Polysulfone, ECTFE/ETFE, 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 Hydrazine at high concentrations?
The materials with an A rating (resistant) for Hydrazine at 20 °C are: PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, SS 316, SS 304. These can generally be used in direct contact.
Which materials should be avoided with Hydrazine?
Materials rated D (not resistant) for Hydrazine are: NBR, Nylon (PA), Polycarbonate. These should not be used in contact with Hydrazine.
Does temperature affect chemical resistance to Hydrazine?
Yes. 4 of 8 tested materials show a worse rating at 50 °C than at 20 °C for Hydrazine. Materials affected include: PVDF, Viton (FPM), SS 316, SS 304.
Is PTFE safe for Hydrazine?
PTFE is rated A for Hydrazine at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.
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.