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Aluminum Chloride Chemical Resistance

Resistance ratings for 24 plastics, elastomers and metals at 20 °C and 50 °C. Listed at 3 concentrations, because the rating depends on it.

At a glance

Based on the row for 10 %, 20 °C.

Rated A, very good resistance
PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, Viton (FPM), NBR, LDPE, FEP, Nylon (PA), Polycarbonate, Polystyrene, PMP, SAN (15)
Rated B, good resistance
ECTFE/ETFE, PETG (2)
Rated C, limited resistance
SS 316, Acetal (POM) (2)
Rated D, not resistant
SS 304, Aluminium (2)
No data in the source
Silicone, PVC Flexible, Polysulfone
Rated lower at 50 °C than at 20 °C
SS 316 (C → D), LDPE (A → B), Acetal (POM) (C → D)
Rating changes with concentration (20 °C)
PVDF: A (10 %), B (solid); EPDM: A (10 %), C (solid); Viton (FPM): A (10 %), C (solid); NBR: A (10 %), C (solid); Nylon (PA): A (10 %), C (saturated); Acetal (POM): C (10 %), D (saturated); Polycarbonate: A (10 %), C (solid)

Based on the row for 10 %, 20 °C.

Rating profile by material family

Aluminum Chloride: Rating profile by material familyThermoplastics: 9 A, 1 B, 1 C, 2 no data. Fluoropolymers: 3 A, 1 B. Elastomers: 3 A, 1 no data. Metals: 1 C, 2 D.Thermoplastics (13)Thermoplastics: 9 × A, very good resistance (HDPE, LDPE, PP, PVC Rigid, PMP, Polystyrene, SAN, Polycarbonate, Nylon (PA))A 9Thermoplastics: 1 × B, good resistance (PETG)Thermoplastics: 1 × C, limited resistance (Acetal (POM))Thermoplastics: 2 × no data (PVC Flexible, Polysulfone)– 2Fluoropolymers (4)Fluoropolymers: 3 × A, very good resistance (PTFE, FEP, PVDF)A 3Fluoropolymers: 1 × B, good resistance (ECTFE/ETFE)B 1Elastomers (4)Elastomers: 3 × A, very good resistance (EPDM, Viton (FPM), NBR)A 3Elastomers: 1 × no data (Silicone)– 1Metals (3)Metals: 1 × C, limited resistance (SS 316)C 1Metals: 2 × D, not resistant (SS 304, Aluminium)D 2
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

Aluminum Chloride: Effect of temperature, 20 °C to 50 °CLDPE A → B; Acetal (POM) C → D; SS 316 C → D.ABCDLDPE: A at 20 °C, B at 50 °CLDPEAcetal (POM): C at 20 °C, D at 50 °CAcetal (POM)SS 316: C at 20 °C, D at 50 °CSS 316
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
7784-13-6
Formula
AlCl3
Hazard symbols in the source
C (corrosive) (pre-GHS European symbols; check the current safety data sheet)
Concentrations listed
10 %; saturated; solid
Also listed as
Hydrochloric acid aluminum salt, anhydrous
Name in the source (German)
Aluminiumchlorid

Rating by concentration

Aluminum Chloride: Rating by concentrationHDPE: 10 % A, saturated A, solid A. LDPE: 10 % A→B, saturated A, solid A. PP: 10 % A, saturated A, solid A. PVC Rigid: 10 % A, saturated A, solid –. PMP: 10 % A, saturated –, solid –. Polystyrene: 10 % A, saturated –, solid –. SAN: 10 % A, saturated A, solid –. Polycarbonate: 10 % A, saturated B*, solid C*. PETG: 10 % B*, saturated –, solid –. Acetal (POM): 10 % C→D, saturated D, solid D. Nylon (PA): 10 % A, saturated C→D, solid C→D. PTFE: 10 % A, saturated A*, solid A*. FEP: 10 % A, saturated A, solid –. PVDF: 10 % A, saturated A, solid B*. ECTFE/ETFE: 10 % B, saturated –, solid –. EPDM: 10 % A, saturated B*, solid C*. Viton (FPM): 10 % A, saturated A, solid C*. NBR: 10 % A, saturated A, solid C*. SS 316: 10 % C→D, saturated C→D, solid C→D. SS 304: 10 % D, saturated D, solid D. Aluminium: 10 % D, saturated D, solid D.10 %saturatedsolidTHERMOPLASTICSHDPEHDPE, 10 %: A at 20 °C, A at 50 °CAHDPE, saturated: A at 20 °C, A at 50 °CAHDPE, solid: A at 20 °C, A at 50 °CALDPELDPE, 10 %: A at 20 °C, B at 50 °CA→BLDPE, saturated: A at 20 °C, A at 50 °CALDPE, solid: A at 20 °C, A at 50 °CAPPPP, 10 %: A at 20 °C, A at 50 °CAPP, saturated: A at 20 °C, A at 50 °CAPP, solid: A at 20 °C, A at 50 °CAPVC RigidPVC Rigid, 10 %: A at 20 °C, A at 50 °CAPVC Rigid, saturated: A at 20 °C, A at 50 °CAPVC Rigid, solid: no data–PMPPMP, 10 %: A at 20 °C, A at 50 °CAPMP, saturated: no data–PMP, solid: no data–PolystyrenePolystyrene, 10 %: A at 20 °C, A at 50 °CAPolystyrene, saturated: no data–Polystyrene, solid: no data–SANSAN, 10 %: A at 20 °C, A at 50 °CASAN, saturated: A at 20 °C, A at 50 °CASAN, solid: no data–PolycarbonatePolycarbonate, 10 %: A at 20 °CAPolycarbonate, saturated: B at 20 °C (estimate)B*Polycarbonate, solid: C at 20 °C (estimate)C*PETGPETG, 10 %: B at 20 °C (estimate)B*PETG, saturated: no data–PETG, solid: no data–Acetal (POM)Acetal (POM), 10 %: C at 20 °C, D at 50 °CC→DAcetal (POM), saturated: D at 20 °C, D at 50 °CDAcetal (POM), solid: D at 20 °C, D at 50 °CDNylon (PA)Nylon (PA), 10 %: A at 20 °CANylon (PA), saturated: C at 20 °C, D at 50 °CC→DNylon (PA), solid: C at 20 °C, D at 50 °CC→DFLUOROPOLYMERSPTFEPTFE, 10 %: A at 20 °C, A at 50 °CAPTFE, saturated: A at 20 °C (estimate)A*PTFE, solid: A at 20 °C (estimate)A*FEPFEP, 10 %: A at 20 °C, A at 50 °CAFEP, saturated: A at 20 °C, A at 50 °CAFEP, solid: no data–PVDFPVDF, 10 %: A at 20 °C, A at 50 °CAPVDF, saturated: A at 20 °C, A at 50 °CAPVDF, solid: B at 20 °C (estimate)B*ECTFE/ETFEECTFE/ETFE, 10 %: B at 20 °C, B at 50 °CBECTFE/ETFE, saturated: no data–ECTFE/ETFE, solid: no data–ELASTOMERSEPDMEPDM, 10 %: A at 20 °CAEPDM, saturated: B at 20 °C (estimate)B*EPDM, solid: C at 20 °C (estimate)C*Viton (FPM)Viton (FPM), 10 %: A at 20 °CAViton (FPM), saturated: A at 20 °CAViton (FPM), solid: C at 20 °C (estimate)C*NBRNBR, 10 %: A at 20 °C, A at 50 °CANBR, saturated: A at 20 °C, A at 50 °CANBR, solid: C at 20 °C (estimate)C*METALSSS 316SS 316, 10 %: C at 20 °C, D at 50 °CC→DSS 316, saturated: C at 20 °C, D at 50 °CC→DSS 316, solid: C at 20 °C, D at 50 °CC→DSS 304SS 304, 10 %: D at 20 °C, D at 50 °CDSS 304, saturated: D at 20 °C, D at 50 °CDSS 304, solid: D at 20 °C, D at 50 °CDAluminiumAluminium, 10 %: D at 20 °C, D at 50 °CDAluminium, saturated: D at 20 °C, D at 50 °CDAluminium, solid: D at 20 °C, D at 50 °CD
A very good resistanceB good resistanceC limited resistanceD not resistantno data
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
Material10 %saturatedsolid
Thermoplastics
HDPEAAA
LDPEAAA
PPAAA
PVC RigidAA–
PVC Flexible–––
PMPA––
PolystyreneA––
SANAA–
PolycarbonateAB*C*
PETGB*––
Acetal (POM)CDD
Nylon (PA)ACC
Polysulfone–––
Fluoropolymers
PTFEAA*A*
FEPAA–
PVDFAAB*
ECTFE/ETFEB––
Elastomers
EPDMAB*C*
Viton (FPM)AAC*
NBRAAC*
Silicone–––
Metals
SS 316CCC
SS 304DDD
AluminiumDDD

* estimated rating, given in the source without a temperature

Resistance table: Aluminum Chloride, 10 %

Material20 °C50 °CRemark
Thermoplastics
HDPEAA
LDPEAB
PPAA
PVC RigidAA
PMPAA
PolystyreneAA
SANAA
PolycarbonateA–
PETGB*–
Acetal (POM)CD
Nylon (PA)A–
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
ECTFE/ETFEBB
Elastomers
EPDMA–
Viton (FPM)A–
NBRAA
Metals
SS 316CD
SS 304DD
AluminiumDD

* estimated rating, given in the source without a temperature

Not rated in the source, so not in the table: PVC Flexible, Polysulfone, Silicone

Resistance table: Aluminum Chloride, saturated

Remark: Salzsäure-Aluminiumsalz, wasserfrei

Material20 °C50 °CRemark
Thermoplastics
HDPEAA
LDPEAA
PPAA
PVC RigidAA
SANAA
PolycarbonateB*–
Acetal (POM)DD
Nylon (PA)CD
Fluoropolymers
PTFEA*–
FEPAA
PVDFAA
Elastomers
EPDMB*–
Viton (FPM)A–
NBRAA
Metals
SS 316CD
SS 304DD
AluminiumDD

* estimated rating, given in the source without a temperature

Not rated in the source, so not in the table: PVC Flexible, PMP, Polystyrene, PETG, Polysulfone, ECTFE/ETFE, Silicone

Resistance table: Aluminum Chloride, solid

Remark: Salzsäure-Aluminiumsalz, wasserfrei

Material20 °C50 °CRemark
Thermoplastics
HDPEAA
LDPEAA
PPAA
PolycarbonateC*–
Acetal (POM)DD
Nylon (PA)CD
Fluoropolymers
PTFEA*–
PVDFB*–
Elastomers
EPDMC*–
Viton (FPM)C*–
NBRC*–
Metals
SS 316CD
SS 304DD
AluminiumDD

* 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, FEP, ECTFE/ETFE, 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 Aluminum Chloride at high concentrations?

The materials with an A rating (resistant) for Aluminum Chloride at 20 °C are: PTFE, HDPE, PP, PVDF, PVC Rigid, EPDM, Viton (FPM), NBR. These can generally be used in direct contact.

Which materials should be avoided with Aluminum Chloride?

Materials rated D (not resistant) for Aluminum Chloride are: SS 304, Aluminium. These should not be used in contact with Aluminum Chloride.

Does temperature affect chemical resistance to Aluminum Chloride?

Yes. 3 of 16 tested materials show a worse rating at 50 °C than at 20 °C for Aluminum Chloride. Materials affected include: SS 316, LDPE, Acetal (POM).

Is PTFE safe for Aluminum Chloride?

PTFE is rated A for Aluminum Chloride at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.

Does concentration affect chemical resistance to Aluminum Chloride?

Yes. Aluminum Chloride is tested at 3 concentrations (10 %, saturated, solid). Some materials change their rating depending on the concentration.

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.

Aluminum Nitrate 89 %Tin(II) Chloride 89 %Mercury(II) Chloride 86 %Aluminum Sulfate 84 %Copper(II) Chloride 83 %Potassium Bromate 81 %