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Benzaldehyde Chemical Resistance

Resistance ratings for 24 plastics, elastomers and metals at 20 °C and 50 °C.

At a glance

Ratings at 20 °C.

Rated A, very good resistance
PTFE, HDPE, PP, PVDF, SS 316, SS 304, Aluminium, FEP, ECTFE/ETFE, Acetal (POM), PMP, SAN (12)
Rated B, good resistance
none (0)
Rated C, limited resistance
EPDM, LDPE, Nylon (PA), Polysulfone (4)
Rated D, not resistant
PVC Rigid, Viton (FPM), NBR, Polycarbonate, PVC Flexible, Polystyrene, PETG (7)
No data in the source
Silicone
Rated lower at 50 °C than at 20 °C
HDPE (A → C), PP (A → D), EPDM (C → D), ECTFE/ETFE (A → C), PMP (A → B), SAN (A → D)

Rating profile by material family

Benzaldehyde: Rating profile by material familyThermoplastics: 5 A, 3 C, 5 D. Fluoropolymers: 4 A. Elastomers: 1 C, 2 D, 1 no data. Metals: 3 A.Thermoplastics (13)Thermoplastics: 5 × A, very good resistance (HDPE, PP, PMP, SAN, Acetal (POM))A 5Thermoplastics: 3 × C, limited resistance (LDPE, Nylon (PA), Polysulfone)C 3Thermoplastics: 5 × D, not resistant (PVC Rigid, PVC Flexible, Polystyrene, Polycarbonate, PETG)D 5Fluoropolymers (4)Fluoropolymers: 4 × A, very good resistance (PTFE, FEP, PVDF, ECTFE/ETFE)A 4Elastomers (4)Elastomers: 1 × C, limited resistance (EPDM)C 1Elastomers: 2 × D, not resistant (Viton (FPM), NBR)D 2Elastomers: 1 × no data (Silicone)– 1Metals (3)Metals: 3 × A, very good resistance (SS 316, SS 304, Aluminium)A 3
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Number of materials in each family with each rating at 20 °C.

Effect of temperature, 20 °C to 50 °C

Benzaldehyde: Effect of temperature, 20 °C to 50 °CHDPE A → C; PP A → D; PMP A → B; SAN A → D; ECTFE/ETFE A → C; EPDM C → D.ABCDHDPE: A at 20 °C, C at 50 °CHDPEPP: A at 20 °C, D at 50 °CPPPMP: A at 20 °C, B at 50 °CPMPSAN: A at 20 °C, D at 50 °CSANECTFE/ETFE: A at 20 °C, C at 50 °CECTFE/ETFEEPDM: C at 20 °C, D at 50 °CEPDM
20 °C50 °C
Materials whose rating differs between 20 °C and 50 °C. Materials not shown keep their rating or have no 50 °C value.

Substance

CAS number
100-52-7
Formula
C7H6O
Hazard symbols in the source
Xn (harmful) (pre-GHS European symbols; check the current safety data sheet)
Name in the source (German)
Benzaldehyd

Resistance table

Remark: künstl. Mandelöl

Material20 °C50 °CRemark
Thermoplastics
HDPEAC
LDPECC
PPAD
PVC RigidDD
PVC FlexibleDD
PMPAB
PolystyreneDD
SANAD
PolycarbonateDD
PETGDD
Acetal (POM)A–
Nylon (PA)C–
PolysulfoneCC
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
ECTFE/ETFEAC
Elastomers
EPDMCD
Viton (FPM)DD
NBRDD
Metals
SS 316AA
SS 304AA
AluminiumAA

Not rated in the source, so not in the table: Silicone

Rating scale

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 Benzaldehyde at high concentrations?

The materials with an A rating (resistant) for Benzaldehyde at 20 °C are: PTFE, HDPE, PP, PVDF, SS 316, SS 304, Aluminium, FEP. These can generally be used in direct contact.

Which materials should be avoided with Benzaldehyde?

Materials rated D (not resistant) for Benzaldehyde are: PVC Rigid, Viton (FPM), NBR, Polycarbonate, PVC Flexible, Polystyrene, PETG. These should not be used in contact with Benzaldehyde.

Does temperature affect chemical resistance to Benzaldehyde?

Yes. 6 of 21 tested materials show a worse rating at 50 °C than at 20 °C for Benzaldehyde. Materials affected include: HDPE, PP, EPDM, ECTFE/ETFE, PMP, SAN.

Is PTFE safe for Benzaldehyde?

PTFE is rated A for Benzaldehyde 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.