At a glance Based on the row for saturated, 20 °C.
Rated A, very good resistance PTFE , HDPE , PP , PVDF , PVC Rigid , EPDM , Viton (FPM) , NBR , SS 316 , SS 304 , LDPE , FEP , ECTFE/ETFE , Polycarbonate , PVC Flexible , Polystyrene , PMP (17) Rated B, good resistance Nylon (PA) (1) Rated C, limited resistance Acetal (POM) (1) Rated D, not resistant Aluminium (1) No data in the source Silicone, Polysulfone, PETG, SAN Rating changes with concentration (20 °C) Polycarbonate: A (saturated), B (aqueous) Based on the row for saturated, 20 °C.
Rating profile by material family Ferrous Sulfate (Iron(II) Sulfate): Rating profile by material family Thermoplastics: 8 A, 1 B, 1 C, 3 no data. Fluoropolymers: 4 A. Elastomers: 3 A, 1 no data. Metals: 2 A, 1 D. Thermoplastics (13) Thermoplastics: 8 × A, very good resistance (HDPE, LDPE, PP, PVC Rigid, PVC Flexible, PMP, Polystyrene, Polycarbonate) A 8 Thermoplastics: 1 × B, good resistance (Nylon (PA)) Thermoplastics: 1 × C, limited resistance (Acetal (POM)) Thermoplastics: 3 × no data (SAN, PETG, Polysulfone) – 3 Fluoropolymers (4) Fluoropolymers: 4 × A, very good resistance (PTFE, FEP, PVDF, ECTFE/ETFE) A 4 Elastomers (4) Elastomers: 3 × A, very good resistance (EPDM, Viton (FPM), NBR) A 3 Elastomers: 1 × no data (Silicone) – 1 Metals (3) Metals: 2 × A, very good resistance (SS 316, SS 304) A 2 Metals: 1 × D, not resistant (Aluminium) D 1
Number of materials in each family with each rating at 20 °C. Effect of temperature, 20 °C to 50 °C No material with a rating at both temperatures changes grade between 20 °C and 50 °C.
Substance CAS number 7720-78-7 Formula FeSO4 Hazard symbols in the source Xn (harmful) (pre-GHS European symbols; check the current safety data sheet) Concentrations listed aqueous; saturated; concentration not stated Also listed as Iron vitriol Name in the source (German) Eisen-(II)-sulfat Rating by concentration Ferrous Sulfate (Iron(II) Sulfate): Rating by concentration HDPE: aqueous A, saturated A, concentration not stated A. LDPE: aqueous A, saturated A, concentration not stated A. PP: aqueous A, saturated A, concentration not stated A. PVC Rigid: aqueous –, saturated A, concentration not stated –. PVC Flexible: aqueous –, saturated A, concentration not stated –. PMP: aqueous –, saturated A, concentration not stated –. Polystyrene: aqueous –, saturated A, concentration not stated A. SAN: aqueous –, saturated –, concentration not stated A. Polycarbonate: aqueous B*, saturated A, concentration not stated A. PETG: aqueous –, saturated –, concentration not stated B*. Acetal (POM): aqueous C*, saturated C*, concentration not stated C*. Nylon (PA): aqueous B*, saturated B*, concentration not stated B*. PTFE: aqueous A, saturated A, concentration not stated A. FEP: aqueous A, saturated A, concentration not stated A. PVDF: aqueous A, saturated A, concentration not stated A. ECTFE/ETFE: aqueous A, saturated A, concentration not stated A. EPDM: aqueous A*, saturated A*, concentration not stated A*. Viton (FPM): aqueous A*, saturated A*, concentration not stated A. NBR: aqueous A, saturated A*, concentration not stated A*. SS 316: aqueous A, saturated A, concentration not stated A. SS 304: aqueous A, saturated A, concentration not stated A. Aluminium: aqueous D, saturated D, concentration not stated D. aqueous saturated concentration not stated THERMOPLASTICS HDPE HDPE, aqueous: A at 20 °C, A at 50 °C A HDPE, saturated: A at 20 °C, A at 50 °C A HDPE, concentration not stated: A at 20 °C, A at 50 °C A LDPE LDPE, aqueous: A at 20 °C, A at 50 °C A LDPE, saturated: A at 20 °C, A at 50 °C A LDPE, concentration not stated: A at 20 °C, A at 50 °C A PP PP, aqueous: A at 20 °C, A at 50 °C A PP, saturated: A at 20 °C, A at 50 °C A PP, concentration not stated: A at 20 °C, A at 50 °C A PVC Rigid PVC Rigid, aqueous: no data – PVC Rigid, saturated: A at 20 °C, A at 50 °C A PVC Rigid, concentration not stated: no data – PVC Flexible PVC Flexible, aqueous: no data – PVC Flexible, saturated: A at 20 °C A PVC Flexible, concentration not stated: no data – PMP PMP, aqueous: no data – PMP, saturated: A at 20 °C A PMP, concentration not stated: no data – Polystyrene Polystyrene, aqueous: no data – Polystyrene, saturated: A at 20 °C A Polystyrene, concentration not stated: A at 20 °C, A at 50 °C A SAN SAN, aqueous: no data – SAN, saturated: no data – SAN, concentration not stated: A at 20 °C, A at 50 °C A Polycarbonate Polycarbonate, aqueous: B at 20 °C (estimate) B* Polycarbonate, saturated: A at 20 °C A Polycarbonate, concentration not stated: A at 20 °C A PETG PETG, aqueous: no data – PETG, saturated: no data – PETG, concentration not stated: B at 20 °C (estimate) B* Acetal (POM) Acetal (POM), aqueous: C at 20 °C (estimate) C* Acetal (POM), saturated: C at 20 °C (estimate) C* Acetal (POM), concentration not stated: C at 20 °C (estimate) C* Nylon (PA) Nylon (PA), aqueous: B at 20 °C (estimate) B* Nylon (PA), saturated: B at 20 °C (estimate) B* Nylon (PA), concentration not stated: B at 20 °C (estimate) B* FLUOROPOLYMERS PTFE PTFE, aqueous: A at 20 °C, A at 50 °C A PTFE, saturated: A at 20 °C, A at 50 °C A PTFE, concentration not stated: A at 20 °C, A at 50 °C A FEP FEP, aqueous: A at 20 °C, A at 50 °C A FEP, saturated: A at 20 °C, A at 50 °C A FEP, concentration not stated: A at 20 °C, A at 50 °C A PVDF PVDF, aqueous: A at 20 °C, A at 50 °C A PVDF, saturated: A at 20 °C, A at 50 °C A PVDF, concentration not stated: A at 20 °C, A at 50 °C A ECTFE/ETFE ECTFE/ETFE, aqueous: A at 20 °C, A at 50 °C A ECTFE/ETFE, saturated: A at 20 °C, A at 50 °C A ECTFE/ETFE, concentration not stated: A at 20 °C, A at 50 °C A ELASTOMERS EPDM EPDM, aqueous: A at 20 °C (estimate) A* EPDM, saturated: A at 20 °C (estimate) A* EPDM, concentration not stated: A at 20 °C (estimate) A* Viton (FPM) Viton (FPM), aqueous: A at 20 °C (estimate) A* Viton (FPM), saturated: A at 20 °C (estimate) A* Viton (FPM), concentration not stated: A at 20 °C A NBR NBR, aqueous: A at 20 °C A NBR, saturated: A at 20 °C (estimate) A* NBR, concentration not stated: A at 20 °C (estimate) A* METALS SS 316 SS 316, aqueous: A at 20 °C, A at 50 °C A SS 316, saturated: A at 20 °C, A at 50 °C A SS 316, concentration not stated: A at 20 °C, A at 50 °C A SS 304 SS 304, aqueous: A at 20 °C, A at 50 °C A SS 304, saturated: A at 20 °C, A at 50 °C A SS 304, concentration not stated: A at 20 °C, A at 50 °C A Aluminium Aluminium, aqueous: D at 20 °C, D at 50 °C D Aluminium, saturated: D at 20 °C, D at 50 °C D Aluminium, concentration not stated: D at 20 °C, D at 50 °C D
Each cell shows the rating at 20 °C. Where the rating at 50 °C differs, it follows the arrow. * marks an estimate in the source. Show as a table * estimated rating, given in the source without a temperature
Resistance table: Ferrous Sulfate (Iron(II) Sulfate), aqueous * estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PVC Rigid , PVC Flexible , PMP , Polystyrene , SAN , PETG , Polysulfone , Silicone
Resistance table: Ferrous Sulfate (Iron(II) Sulfate), saturated * estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: SAN , PETG , Polysulfone , Silicone
Resistance table: Ferrous Sulfate (Iron(II) Sulfate), concentration not stated * estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PVC Rigid , PVC Flexible , PMP , Polysulfone , Silicone
Rating scale A very good resistanceB good resistanceC limited resistanceD not resistant– no dataK no general statement possibleA 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.
Chemicals with a similar resistance profile Same 20 °C rating on the share of materials shown.
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