1,1-difluoroethane
C2H4F2
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Identification
- CAS Number
- 75-37-6
- EC Number
- 200-866-1
- UN Number
- 1030
- PubChem CID
- 6368
Physical-chemical properties
- Molecular Formula
- C2H4F2
- Molar Mass
- 66.05 g/mol
- IUPAC Name
- 1,1-difluoroethane
Chemical Identifiers
- InChI
- InChI=1S/C2H4F2/c1-2(3)4/h2H,1H3
- InChI Key
- NPNPZTNLOVBDOC-UHFFFAOYSA-N
Overview
1,1-difluoroethane (CAS 75-37-6) is an organofluorine compound with low toxicity and refrigerant properties used in various industrial applications. This halogenated hydrocarbon belongs to the hydrofluorocarbon (HFC) family and serves as an important intermediate in chemical synthesis and specialized industrial processes. With its molecular formula C2H4F2 and molecular weight of 66.05 g/mol, 1,1-difluoroethane exhibits unique thermodynamic properties that make it valuable across multiple sectors. The compound is classified under ADR Class 2, indicating its gaseous nature under standard conditions, yet it presents minimal safety concerns due to its favorable toxicological profile. From a safety perspective, 1,1-difluoroethane demonstrates excellent handling characteristics with no assigned GHS pictograms or signal words, reflecting its relatively benign nature compared to other halogenated compounds. This safety profile distinguishes it from substances like bromane, which requires more stringent handling protocols. The compound's stability and non-flammable properties under normal conditions contribute to its widespread industrial acceptance. The primary applications of 1,1-difluoroethane include its use as a propellant in aerosol formulations, particularly in pharmaceutical and cosmetic products where safety and efficacy are paramount. It also serves as a refrigerant component in specialized cooling systems and as a blowing agent in foam manufacturing processes. Additionally, the compound functions as a chemical intermediate in the synthesis of other fluorinated compounds, leveraging its reactive difluoro functionality. OYSI maintains reliable supply channels for 1,1-difluoroethane to support European industrial customers requiring consistent quality and regulatory compliance for their manufacturing processes.
Safety & Classification
No Hazard Classification
This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.
Transport (ADR)
| UN Number | 1030 |
| ADR Class | 2 |
| Packing Group | |
| Tunnel Code | B/D |
| Proper Shipping Name | 1,1-Difluorethan, unter Druck verflüssigt |
| Marine Pollutant | No |
Frequently Asked Questions
What is 1,1-difluoroethane?
1,1-difluoroethane is an organic chemical compound with the molecular formula C2H4F2 and CAS number 75-37-6. It belongs to the family of hydrofluorocarbons (HFCs) and has a molecular weight of 66.05 g/mol. This colorless gas is characterized by two fluorine atoms attached to the same carbon atom in an ethane molecule, making it a difluorinated derivative of ethane with specific chemical and physical properties suitable for various industrial applications.
What are the physicochemical properties of 1,1-difluoroethane?
1,1-difluoroethane is a colorless gas at room temperature and atmospheric pressure with a relatively low boiling point typical of small fluorinated hydrocarbons. As a hydrofluorocarbon, it exhibits low solubility in water but shows good solubility in organic solvents. The presence of fluorine atoms gives it chemical stability and low reactivity under normal conditions. Its molecular structure and fluorine content contribute to its unique thermodynamic properties, making it suitable for specific technical applications.
What is 1,1-difluoroethane used for?
1,1-difluoroethane serves primarily as a refrigerant in cooling systems and air conditioning applications due to its favorable thermodynamic properties. It is also used as a propellant in aerosol products and as a blowing agent in foam manufacturing processes. In the pharmaceutical industry, it finds application as a propellant in medical inhalers and spray devices. Additionally, it can be used as an intermediate in chemical synthesis and as a component in specialty gas mixtures for various industrial processes.
How to handle 1,1-difluoroethane safely?
1,1-difluoroethane should be handled in well-ventilated areas or with appropriate ventilation systems to prevent accumulation of vapors. Personal protective equipment including safety glasses and protective gloves should be worn during handling. Avoid sources of ignition and heat, and ensure proper grounding of equipment when transferring the material. Work in areas equipped with gas detection systems when appropriate, and ensure personnel are trained in proper handling procedures for compressed gases and fluorinated compounds.
How to store 1,1-difluoroethane correctly?
1,1-difluoroethane should be stored in appropriate pressure vessels or cylinders designed for compressed gases in cool, dry, and well-ventilated areas. Storage areas must be protected from direct sunlight, heat sources, and temperature fluctuations. Containers should be properly secured to prevent falling or damage. Store away from incompatible materials and ensure storage areas comply with local regulations for compressed gases. Regular inspection of storage containers for leaks or damage is essential for safe storage.
What to do in case of contact with 1,1-difluoroethane?
In case of skin contact with 1,1-difluoroethane, remove contaminated clothing and flush the affected area with lukewarm water for at least 15 minutes. If inhaled, move the person to fresh air immediately and keep them at rest. For eye contact, rinse thoroughly with water for several minutes and remove contact lenses if present and easily removable. If breathing difficulties occur or symptoms persist, seek immediate medical attention. Never attempt rescue in confined spaces without proper respiratory protection.
How to dispose of 1,1-difluoroethane appropriately?
1,1-difluoroethane must be disposed of through authorized waste management companies specializing in fluorinated gases and hazardous materials. Empty containers should be properly depressurized and handled according to local waste regulations. As a fluorinated compound, it requires special treatment to prevent environmental release and comply with regulations governing ozone-depleting substances and greenhouse gases. Contact local environmental authorities or specialized waste disposal services for proper disposal procedures and documentation requirements.
How to transport 1,1-difluoroethane?
1,1-difluoroethane is classified under ADR Class 2 as a compressed gas for transportation purposes. It must be transported in approved pressure containers or cylinders that meet international transportation standards. Vehicles must display appropriate hazard placards and documentation including transport documents specifying the gas classification. Drivers require ADR training for Class 2 dangerous goods. Transportation should follow established routes and safety protocols for compressed gases, with appropriate emergency response information readily available.
Is 1,1-difluoroethane subject to specific regulations?
1,1-difluoroethane is subject to REACH regulation requiring registration for manufacture or import above certain tonnages in the European Union. It falls under CLP regulation for classification and labeling, though it currently shows no specific hazard classification. As a fluorinated gas, it may be subject to F-Gas regulation depending on its application and use. Transportation is regulated under ADR/RID for dangerous goods. Users must comply with local environmental and occupational health regulations governing its use and emission.
Where to buy 1,1-difluoroethane in Europe?
1,1-difluoroethane is available through OYSI, a European distributor of specialty chemicals and industrial gases. OYSI provides reliable supply chains across Europe with proper documentation and regulatory compliance for chemical distribution. As a specialized chemical distributor, OYSI ensures product quality, appropriate packaging, and technical support for industrial customers. Contact OYSI directly for availability, specifications, and delivery options to your location within Europe, along with safety data sheets and regulatory documentation required for your application.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.