Ethylene Bromide vs HDPE Compatibility
Verified chemical resistance rating (Incompatible — Immediate Failure Risk), thermal boundary limits (Not recommended at any temperature or concentration), and material specification guide for HDPE exposed to Ethylene Bromide in Halogenated Hydrocarbon / Refrigerant service.
Ethylene Bromide vs HDPE: D-Severe Effect
Exposing HDPE to Ethylene Bromide (Formula: BrCH2CH2Br (C2H4Br2 / 1,2-Dibromoethane), CAS: 106-93-4) carries an official rating of D-Severe Effect (Incompatible — Immediate Failure Risk). Maximum recommended thermal operating limit: Not recommended at any temperature or concentration. Best Grade A alternative materials for continuous or high-temperature service: Stainless Steel, Viton, PTFE, PVDF.
Technical Specifications and Operating Parameters
| Chemical Medium | Ethylene Bromide |
|---|---|
| Chemical Formula | BrCH2CH2Br (C2H4Br2 / 1,2-Dibromoethane) |
| CAS Registry Number | 106-93-4 |
| Chemical Functional Class | Halogenated Hydrocarbon / Refrigerant |
| Wetted Material | HDPE |
| Official Resistance Rating | D-Severe Effect (Grade D) |
| Engineering Service Verdict | Incompatible — Immediate Failure Risk |
| Max Temp and Concentration Limit | Not recommended at any temperature or concentration |
| Best Grade A Alternatives | Stainless Steel, Viton, PTFE, PVDF |
| Backtest and Audit Verification | Verified against Cole-Parmer, ISM, Graco & CP Lab Safety industrial chemical resistance charts. |
Ethylene Bromide Cross-Material Comparison Matrix (9 Materials)
Direct benchmark ratings across all 9 reference industrial materials for Ethylene Bromide:
| Material Name | Compatibility Rating | Service Verdict | Temperature Limit | Datasheet |
|---|---|---|---|---|
| Buna-N | B-Good | Acceptable with Operating Controls | Ambient service (72°F / 22°C) preferred; monitor wear in continuous service | Report |
| EPDM | B-Good | Acceptable with Operating Controls | Ambient service (72°F / 22°C) preferred; monitor wear in continuous service | Report |
| HDPE | D-Severe Effect | Incompatible — Immediate Failure Risk | Not recommended at any temperature or concentration | Report |
| Polypropylene | D-Severe Effect | Incompatible — Immediate Failure Risk | Not recommended at any temperature or concentration | Report |
| PTFE | A-Excellent | Safe for Continuous Industrial Service | Ambient to elevated operating temperatures within standard material limits | Report |
| PVC | B-Good | Acceptable with Operating Controls | Ambient service (72°F / 22°C) preferred; monitor wear in continuous service | Report |
| PVDF | A-Excellent | Safe for Continuous Industrial Service | Ambient to elevated operating temperatures within standard material limits | Report |
| Stainless Steel | A-Excellent | Safe for Continuous Industrial Service | Ambient to elevated operating temperatures within standard material limits | Report |
| Viton | A-Excellent | Safe for Continuous Industrial Service | Ambient to elevated operating temperatures within standard material limits | Report |
Chemical and Material Interaction Analysis
Engineering Compatibility Verdict
Ethylene Bromide vs HDPE: D – Severe Effect (Do Not Use)
Summary Verdict: HDPE (High-Density Polyethylene) is rated D-Severe Effect (Incompatible — Immediate Failure Risk) when exposed to Ethylene Bromide (Formula: BrCH2CH2Br (C2H4Br2 / 1,2-Dibromoethane), CAS: 106-93-4). PROHIBITED for wetted service. Immediately substitute with an A-rated material shown in the cross-material comparison table below.
Quick Engineering Specifications
| Chemical Media | Ethylene Bromide |
|---|---|
| Chemical Formula | BrCH2CH2Br (C2H4Br2 / 1,2-Dibromoethane) |
| CAS Registry Number | 106-93-4 |
| Chemical Classification | Halogenated Hydrocarbon / Refrigerant |
| Wetted Material | HDPE (High-Density Polyethylene) (Linear Semi-Crystalline Polyolefin Thermoplastic) |
| Official Resistance Rating | D – Severe Effect (Do Not Use) (Grade D) |
| Recommended Temperature Window | Not recommended at any temperature or concentration (Material limit: -60°F to 140°F (-51°C to 60°C)) |
| Top Grade-A Alternatives | Stainless Steel, Viton, PTFE, PVDF |
| Data Verification Status | Verified against Cole-Parmer, ISM, Graco & CP Lab Safety industrial chemical resistance charts. |
Chemical & Material Interaction Analysis
Ethylene Bromide is classified as a halogenated hydrocarbon / refrigerant (high diffusivity and strong non-polar solvent swelling in polyolefins and standard rubbers). Used in vapor degreasing, refrigerant loops, chemical extraction, and polymer manufacturing. When selecting wetted components for HDPE, engineers must account for both concentration-dependent chemical attack and thermal stress:
- Reaction & Failure Mechanism: Causes rapid, catastrophic material failure—including severe dissolution, stress cracking, extreme volumetric blowout (>25% swell), or rapid pitting corrosion (>50 mpy).
- Material Profile (HDPE): High impact strength (even at sub-zero temperatures) and excellent resistance to mineral acids, caustics, salt brines, and alcohols. However, lower upper temperature limit (140°F/60°C) than Polypropylene, with susceptibility to permeation and environmental stress cracking in aromatic/chlorinated hydrocarbons and strong oxidizers.
- Application Scope: Common wetted components include bulk chemical storage tanks, IBC totes, double-containment underground piping, and chemical drum liners.
Cross-Material Compatibility Comparison for Ethylene Bromide
To help you select the longest-lasting piping, valve lining, or O-ring seal for Ethylene Bromide, the table below compares HDPE against 8 other common industrial engineering materials:
| Wetted Material | Compatibility Rating | Service Recommendation | Material Temp Range |
|---|---|---|---|
| Polypropylene (PP Homopolymer & Copolymer) | D-Severe Effect | Incompatible — Immediate Failure Risk | 32°F to 180°F (0°C to 82°C) |
| 316 / 304 Austenitic Stainless Steel | A-Excellent | Safe for Continuous Industrial Service | -325°F to 800°F (-198°C to 426°C) |
| Viton® (FKM Fluoroelastomer) | A-Excellent | Safe for Continuous Industrial Service | -15°F to 400°F (-26°C to 204°C) |
| PTFE (Teflon® / Polytetrafluoroethylene) | A-Excellent | Safe for Continuous Industrial Service | -328°F to 500°F (-200°C to 260°C) |
| EPDM (Ethylene Propylene Diene Monomer) | B-Good | Acceptable with Operating Controls | -60°F to 300°F (-51°C to 149°C) |
| PVC Type I (Unplasticized Polyvinyl Chloride / uPVC) | B-Good | Acceptable with Operating Controls | 32°F to 140°F (0°C to 60°C) |
| PVDF (Kynar® / Polyvinylidene Fluoride) | A-Excellent | Safe for Continuous Industrial Service | -40°F to 280°F (-40°C to 138°C) |
| Buna-N (Nitrile / NBR Elastomer) | B-Good | Acceptable with Operating Controls | -40°F to 250°F (-40°C to 121°C) |
| HDPE (High-Density Polyethylene) (Current Page) | D-Severe Effect | Incompatible — Immediate Failure Risk | -60°F to 140°F (-51°C to 60°C) |
Frequently Asked Questions (FAQ)
Is HDPE compatible with Ethylene Bromide?
HDPE is rated D-Severe Effect (Incompatible — Immediate Failure Risk) with Ethylene Bromide (Formula: BrCH2CH2Br (C2H4Br2 / 1,2-Dibromoethane), CAS: 106-93-4). Causes rapid, catastrophic material failure—including severe dissolution, stress cracking, extreme volumetric blowout (>25% swell), or rapid pitting corrosion (>50 mpy). PROHIBITED for wetted service. Immediately substitute with an A-rated material shown in the cross-material comparison table below.
What is the best alternative material for handling Ethylene Bromide?
If HDPE does not meet your temperature or pressure requirements for Ethylene Bromide, the highest-rated Grade A alternatives are Stainless Steel, Viton, PTFE, PVDF. Always verify O-ring elastomers and metallic fasteners separately before full-scale deployment.
Technical Engineering FAQs: Ethylene Bromide vs HDPE
Click any question below for chemical failure-mode specifics, thermal derating limits, and material selection rules: