Product Overview
R141B (HCFC-141b) is a hydrochlorofluorocarbon (HCFC) haloalkane with the molecular formula C₂H₃Cl₂F and molecular weight 116.95 g/mol . At ambient conditions, it exists as a colorless, volatile liquid with a boiling point of approximately 32°C and liquid density of 1.25 g/cm³ at 20°C .
Historically, R141B has served as a transitional substitute for CFC-11 in rigid polyurethane foam blowing applications and as a replacement for CFC-113 in precision cleaning and solvent degreasing operations . It is known for its low vapor thermal conductivity, which allows the production of polyurethane foam with excellent physical properties, making it ideal for spray foam and appliance insulation applications .
⚠️ Important Regulatory Notice: R141B is classified as an ozone-depleting substance (ODS) under the Montreal Protocol . Its production and consumption have been phased out in developed countries (since 2020) and are subject to phase-out in developing countries (by 2030) . Please check local regulations before purchase, as this product may be restricted or prohibited in many markets. R141B is considered a transitional replacement only and is not suitable for new equipment design .
📋 Physical Properties
· Chemical Name: 1,1-Dichloro-1-fluoroethane
· Chemical Formula: C₂H₃Cl₂F / CH₃CCl₂F
· CAS Number: 1717-00-6
· Molecular Weight: 116.95 g/mol
· Boiling Point: approx. 32°C
· Liquid Density (20°C): approx. 1.25 g/cm³
· Appearance: Colorless, volatile liquid
· ODP (Ozone Depletion Potential): 0.02
· GWP (Global Warming Potential): approx. 83 (100-year)
· Safety Class: See MSDS for handling precautions
📋 Quality Standards
· Purity: ≥99.8% (typical)
· ODP: 0.02
· GWP: 83
· Standard: Compliant with applicable industry standards
· Packaging: 250kg drum or ISO tank (custom packaging available upon request)
Applications
R141B is primarily used in:
· Polyurethane foam blowing – for spray foam, appliance insulation, and construction panels
· Precision cleaning and solvent degreasing – as a replacement for CFC-113
· Refrigerant blends – historically used in limited refrigerant applications (e.g., R-505, R-506 blends)
· Chemical intermediate – in the synthesis of other fluorochemicals
ℹ️ Note: R141B is not a refrigerant for air conditioning or refrigeration systems in the traditional sense. Its primary use has been as a foam blowing agent and industrial solvent. Due to its ozone-depleting properties and regulatory phase-out, it is being replaced by more environmentally friendly alternatives such as HFC-245fa or HFO blowing agents.
Documentation & Compliance
· COA (Certificate of Analysis) available with every shipment
· MSDS (Material Safety Data Sheet) provided upon request
· ODS compliance documentation available
· Full shipping documents for smooth customs clearance
Storage & Handling
· Store in a cool, dry, ventilated area, away from fire and direct sunlight
· Keep containers tightly sealed and upright
· Use appropriate personal protective equipment (PPE) when handling
· Ensure work area is well-ventilated
· Dispose of in accordance with local environmental regulations
· Note: R141B is not miscible with water and has low aqueous solubility (approx. 420 mg/L at 25°C)
Ordering Information
Item Detail
Packaging 250kg drum / ISO tank
MOQ Inquire for details
Lead Time Inquire for details