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HDPE and Chloroacetic Acid: Chemical Resistance

High-density polyethylene

Rating

Concentration20 °C50 °CRemark
50 %AC
concentration not statedAA

Material comparison at 20 °C

Chloroacetic Acid: Material comparison at 20 °CHDPE: A (highlighted); ECTFE/ETFE: A; FEP: A; LDPE: A; PMP: A; PP: A.ECTFE/ETFE: AFEP: AHDPE: AHDPELDPE: APMP: APP: APTFE: APolystyrene: BEPDM: CViton (FPM): CPolycarbonate: CPVC Rigid: CSAN: CAluminium: DNBR: DNylon (PA): DPETG: DAcetal (POM): DPolysulfone: DPVC Flexible: DPVDF: DSS 304: DSS 316: DSilicone: –
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Each bar is one material. Taller bars indicate better resistance. The highlighted bar is the current material.

Resistance overview

HDPE shows excellent resistance to Chloroacetic Acid across all 2 tested concentrations (50 %) at 20 °C, making it a reliable choice for storage, transfer, and handling applications involving this chemical at any of the tested strengths. However, at 50 °C the resistance rating drops, indicating that temperature must be factored into the design. For heated applications, additional testing under actual service conditions is strongly recommended.

Application context

Chloroacetic Acid is commonly encountered in laboratory work and metal finishing. HDPE (High-density polyethylene) is a thermoplastic typically used for tanks, piping, containers and liners. Because Chloroacetic Acid is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.

Practical recommendation

HDPE can be used with confidence for Chloroacetic Acid 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. At elevated temperatures (50 °C), some reduction in resistance occurs, so periodic inspection is advisable for heated applications. Always verify performance under actual operating conditions before committing to a design.

Did you know?

High-density polyethylene was first developed in the 1950s and remains one of the most widely used thermoplastics in chemical handling equipment.

Materials rated A or B at 20 °C

Based on the row for concentration not stated, 20 °C.

Thermoplastics
PP A, LDPE A, Polystyrene B, PMP A
Fluoropolymers
PTFE A, FEP A, ECTFE/ETFE A

About HDPE

High-density polyethylene resists most aqueous acids, alkalis and salt solutions. Strong oxidising acids, chlorinated solvents and aromatic hydrocarbons attack or swell it. Continuous service is usually limited to about 80 °C.

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.

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.