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Hydrochloric Acid Resistance of HDPE

Is HDPE compatible with Hydrochloric Acid?

Compatibility Rating

📊 Note: Hydrochloric Acid resistance varies by concentration. Data available for: 1-5 %, 20 %, 35 %. Search for specific concentrations →

At 20°C
A
Excellent
Excellent resistance - recommended for continuous use
At 50°C
A
Excellent
Excellent resistance - recommended for continuous use

Why is HDPE resistant to Hydrochloric Acid?

HDPE shows excellent resistance to Hydrochloric Acid due to its tightly packed molecular structure and chemical inertness to most acids, bases, and salts.

⚠️ When NOT to use HDPE

Avoid using High-Density Polyethylene with strong oxidizing acids (nitric, chromic), chlorinated solvents, and aromatic hydrocarbons. Maximum service temperature is around 80°C.

Comparison Table — All Materials for Hydrochloric Acid

Material20°C50°C
HDPEAA
LDPEAA
PPAA
PTFEAA
PVDFAA
FEPAA
ECTFE/ETFEAA
EPDMANR
Viton (FPM)AA
NBRDD
SiliconeNRNR
SS 316DD
SS 304DD
AluminiumDD
PVC RigidAC
PVC FlexibleNRNR
PMPAB
PolystyreneAA
SANNRNR
PolycarbonateBC
PETGCNR
Acetal (POM)DD
Nylon (PA)DD
PolysulfoneAA

A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data

FAQ

Is HDPE resistant to Hydrochloric Acid?

HDPE has Excellent (A) resistance to Hydrochloric Acid at 20°C.

Can I store Hydrochloric Acid in HDPE?

Yes, HDPE is rated A for Hydrochloric Acid.

📊 Note: Hydrochloric Acid resistance varies by concentration. Data available for: 1-5 %, 20 %, 35 %. Search for specific concentrations →

All Materials for Hydrochloric Acid All Chemicals for HDPE