420-45-1

Basic information

• Product Name: 2,2-DIFLUOROPROPANE
• Synonyms: 2,2-DIFLUOROPROPANE;(CH3)2CF2;Dimethyldifluoromethane;FC-272ca;propane,2,2-difluoro-;Propane-2,2-difluoro;2,2-Difluoropropane 97%;2,2-Difluoropropane97%
• CAS NO: 420-45-1
• Molecular Formula: C₃H₆F₂
• Molecular Weight: 80.08
• Mol File: 420-45-1.mol

Chemical Properties

• Melting Point: -104.8°C
• Boiling Point: -1°C
• Appearance: /
• Density: 0,92 g/cm3
• Vapor Pressure: 2010mmHg at 25°C
• Refractive Index: 1.2880
• CAS DataBase Reference: 2,2-DIFLUOROPROPANE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-DIFLUOROPROPANE(420-45-1)
• EPA Substance Registry System: 2,2-DIFLUOROPROPANE(420-45-1)

Safety Data

• Hazard Codes: F
• Statements: 11
• Safety Statements: 16-33
• RIDADR: 3161
• HazardClass: GAS, FLAMMABLE
• Hazardous Substances Data: 420-45-1(Hazardous Substances Data)

Usage

Uses

Used in Refrigeration Industry:
2,2-Difluoropropane is used as a refrigerant for its low global warming potential, serving as an environmentally friendly alternative to other refrigerants that contribute more significantly to ozone depletion.
Used in Aerosol Propellants:
In the aerosol industry, 2,2-Difluoropropane is utilized as a propellant due to its non-toxic and non-flammable nature, making it safe for use in a wide range of consumer products.
Used in Foam Blowing:
2,2-Difluoropropane is employed in the foam blowing process, where it acts as a blowing agent to create foam with specific properties, leveraging its favorable environmental and safety characteristics.
Used in Solvent Cleaning Processes:
This chemical is also used in solvent cleaning processes, where it serves as a cleaning agent that is both effective and safe for the environment, reducing the need for more harmful alternatives.

InChI:InChI=1/C3H6F2/c1-3(2,4)5/h1-2H3

Upstream product

• 594-20-7 2,2-dichloropropane 
• 187737-37-7 propene 
• 463-49-0 1,2-propanediene 
• 353-61-7 tert-butylfluoride 
• 65082-47-5 Methylsulfur trifluoride 
• 67-64-1 acetone 
• 2310-98-7 2-bromo-2-chloropropane 
• 7726-95-6 bromine 
• 7783-56-4 antimony(III) fluoride 
• 66793-25-7 methylenesulfurtetrafluoride 

Downstream Products

• 422-49-1 1,1,1,3,3-pentachloro-2,2-difluoropropane 
• 1184-60-7 2-fluoropropene 
• 1112-01-2 1,1-dichloro-2,2-difluoropropane 
• 1112-05-6 1,1,1-Trichlor-2,2-difluor-propan 
• 677-54-3 1,1,1,3-tetrachloro-2,2-difluoropropane 
• 3182-26-1 1,1,1,3,3,3-hexachloro-2,2-difluoro-propane 
• 420-99-5 1-chloro-2,2-difluoropropane 
• 3175-23-3 1,2,2-trichloropropane 
• 420-97-3 1,2-dichloro-2-fluoro-propane 
• 421-07-8 1,1,1-trifluoropropane 
• 813-75-2 1,3-difluoro-2,2-difluoropropane 
• 811-94-9 1,1,2-trifluoropropane 
• 680-00-2 1,1,2,2,3,3-hexafluoropropane 
• 76-19-7 freon-218 

Relevant articles and documents

Synthesis, Physical Characterisation and Chemical Properties of Methylsulphur Trifluoride, CH3SF3

Methylsulphur trifluoride, CH3SF3, has been synthesised by the reaction between AgF2 and a solution of CH3SCl3F.It is a clear, viscous liquid which attacks glass, is hydrolysed rapidly, and decomposes at ambient termperatures to give CH2FSF3 and CH2FSSCH2F.The compound has been characterised by its 1H and 19F NMR and vibrational spectra, and a partial vibrational assignment is proposed.The chemistry of CH3SF3 is akin to that of SF4.Thus, it functions as a fluoride ion donor much more readily than as a fluoride ion acceptor.It reacts with Pyrex glass to give CH3S(O)F, is hydrolysed to CH3S(O)OH, and effects O-F exchange with acetone to zield 2,2-difluoropropane.

A New Preparative Method for 1-Chloro-2,2,3-trifluoropropane (HCFC-253ca)

Allene was both fluorinated and chlorofluorinated with chlorine monofluoride serving as a well-known chlorofluorinating and chlorinating reagent. 1-Chloro-2,2,3-trifluoropropane was obtained as a major product in the presence of cesium fluoride.

ELECTROCHEMICAL FLUORINATION USING POROUS NICKEL AND FOAM NICKEL ANODES

This work set out to examine the reasons behind some of the problems associated with ECF, namely, lack of reproducibility, low chemical yields, poor selectivity and low current densities, with a view to ameliorating these shortcomings and making the process more attractive to the chemical industry.The approach was to study the chemistry under controlled conditions of potential, reactant concentration, temperature, etc., and to analyse the results in terms of product structure, distribution and yield.Two distinct stages in the process were identified, i) the conditioning of the electrode, and, ii) the fluorination of the organic substrate.These stages are described in detail in relation to two model systems investigated, the fluorination of propene using porous and foam nickel anodes, and the fluorination of the octanoyl chloride using nickel foam anodes.The scales of experiments ranged from 100 ml to 100 l cell capacities.General conclusions are derived and recommendations made for the more efficient operation of the process.

Structures of Organic Cations in the Gas Phase. Neutral Products from Fluoride Abstraction Examined by NMR

Structures of 2-fluoroisopropyl cation (1) and 2-propenyl cation (2) in the gas phase have been examined by quenching via ion-molecule reactions and examination of the neutral products by NMR.Both ions are produced by 70-eV electron bombardment of tert-butyl fluoride, and both react with the parent neutral to yield tert-butyl cation.The ion-molecule reaction of 1 yields 2,2-difluoropropane as >90percent of the neutral product.The ion-molecule reaction of 2 yields 2-fluoropropene, as confirmed by preparing 2 from an other source and examining the product from its reaction with tert-butyl-d6 fluoride (3).Allyl fluoride is not detected among the the reaction products.Since this product is observed when allyl bromide is bombarded with 70-eV electrons in the presence of tert-butyl fluoride, its absence in electron bombardment of tert-butyl fluoride alone implies that 2 is the only C3H5+ ion produced and that it does not rearrange to the allyl cation under the reaction conditions.The deuterated neutral products from electron impact on 3 alone or in the presence of diethyl ether indicate that 1 does not scramle its hydrogens, even when it contains enough internal energy to expel HF to form 2.The use of deuterium isotope shifts in 19F NMR to study the position and extent of label in neutral products is exemplified as a new tool for probing structures of gaseous cations.

Methylenesulfurtetrafluoride, CH2=SF4, Formation, Structure, and Chemistry

The preparation of methylenesulfurtetrafluoride, CH2=SF4, is achieved by bromine-lithium exchange on Br-CH2-SF5 at low temperatures and subsequent lithium fluoride elimination.CH2=SF4 is a colourless gas with b.p. -19 deg C and m.p. -139 deg C.The structure is essentially trigonal-bipyramidal, the methylene group occupying an equatorial position.The protons lie in the plane of the axial fluorine atoms.The molecule is rigid.The carbon-sulfur bond is best described as strong double bond with only little ylidic polarity. - The double bond undergoes numerous addition reactions with polar species under formation of cis-configurated X-CH2-SF4-Y systems.Less often elimination of SF4 and formation of carbene is observed.