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Zero ozone depletion potential (ODP = 0) and low global warming potential (GWP < 15), compliant with current environmental stewardship standards.
Nonflammable azeotropic composition ensures consistent boiling point and stable vapor-phase cleaning performance.
Low surface tension and high solvency for light hydrocarbons, silicone oils, and flux residues without damaging sensitive electronics.
Fast-drying, residue-free evaporation leaves no film or ionic contamination on precision components.
Compatible with common elastomers (Viton®, EPDM, silicone) and most engineering plastics used in cleaning equipment.
Vapor degreasing of printed circuit boards (PCBs), microelectromechanical systems (MEMS), and optical assemblies.
Final rinse step in aqueous-based cleaning lines to displace water and prevent spotting or corrosion.
Cleaning of high-precision aerospace components including sensors, actuators, and avionics housings.
Defluxing of lead-free solder paste residues prior to conformal coating or wire bonding.
Maintenance cleaning of semiconductor wafer handling tools, photomasks, and metrology fixtures.
| Chemical Type | Azeotropic mixture of hydrofluoroether (HFE) and isopropyl alcohol (IPA) |
| Product Form | Liquid (clear, colorless) |
| Appearance | Transparent, odorless to mild ethereal odor |
| Boiling Point (at 760 mmHg) | ~49–51 °C (azeotropic range) |
| Primary Applications | Vapor degreasing, precision rinsing, defluxing, moisture displacement |
| Key Features | Nonflammable, non-ozone depleting, low toxicity, azeotropic stability |
| Benefits | No flash point, minimal VOC reporting requirements, reduced drying energy vs. aqueous processes |
| Regulatory Compliance | REACH registered; not listed under TSCA Significant New Use Rules (SNUR); exempt from US EPA SNAP restrictions for vapor degreasing |
| Common Compatible Systems | Suitability |
| Standard vapor degreasers (e.g., Precision, Techspray, LyondellBasell-compatible units) | Highly Recommended – Designed for low-boiling azeotropes with condenser temperature control |
| Ultrasonic immersion tanks with IPA-compatible materials (316 stainless steel, PTFE, PVDF) | Recommended – Requires post-rinse ventilation due to IPA volatility |
| Batch spray-in-air cleaning systems with closed-loop solvent recovery | Recommended – Achieves >92% solvent recovery efficiency |
| Automated inline cleaning lines with heated vapor zones | Suitable – Compatible with standard HFE-compatible gaskets and seals; verify temperature setpoints ≤ 60 °C |
Q1: What is the CAS Registry Number for CL71IPA?
A: CL71IPA is a proprietary azeotropic formulation; individual components are registered (e.g., HFE-7100: 13213-23-9; IPA: 67-63-0), but the azeotrope itself carries no separate CAS number per IUPAC guidelines.
Q2: What is the recommended usage concentration in vapor degreasing applications?
A: CL71IPA is used neat (100% concentration) in vapor degreasing; dilution is neither required nor recommended due to its engineered azeotropic behavior and optimal vapor density profile.
Q3: How does CL71IPA compare to n-Propyl Bromide (nPB) or TCE in terms of safety and regulatory status?
A: Unlike nPB (potential neurotoxin, IARC Group 2B) or TCE (known human carcinogen, EPA banned for vapor degreasing), CL71IPA has no OSHA PEL or ACGIH TLV established due to low acute toxicity and lack of genotoxicity evidence in standardized assays.
Q4: Does CL71IPA leave extractable residues on medical device polymers such as polycarbonate or polyurethane?
A: Validation studies per ISO 10993-12 show no detectable extractables (<0.1 ppm) from CL71IPA on common medical-grade polymers after standard vapor dwell and air-knife drying cycles.
Q5: Is CL71IPA compatible with ISO 14644-1 Class 5 cleanroom environments?
A: Yes — when used in validated vapor degreasers with HEPA-filtered air-knife drying and monitored solvent vapor containment, CL71IPA meets particle generation and outgassing requirements for ISO Class 5 cleanrooms.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
