421-48-7

Basic information

• Product Name: 1,1,1,2-Tetrafluoropropane
• Synonyms: 1,1,1,2-Tetrafluoropropane;1,1,1,2-Tetrafluoropropane (FC-254eb) 97%
• CAS NO: 421-48-7
• Molecular Formula: C₃H₄F₄
• Molecular Weight: 116.06
• Mol File: 421-48-7.mol
• Article Data: 14

Chemical Properties

• Boiling Point: 4.44°C (estimate)
• Flash Point: °C
• Appearance: /
• Density: 1.2584 (estimate)
• Vapor Pressure: 2540mmHg at 25°C
• Refractive Index: 1.2774 (estimate)
• CAS DataBase Reference: 1,1,1,2-Tetrafluoropropane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,1,2-Tetrafluoropropane(421-48-7)
• EPA Substance Registry System: 1,1,1,2-Tetrafluoropropane(421-48-7)

Safety Data

• Hazard Codes: F
• Hazardous Substances Data: 421-48-7(Hazardous Substances Data)

Usage

General Description

1,1,1,2-Tetrafluoropropane, also known as HFC-134a, is a colorless, odorless, and non-toxic chemical compound belonging to the hydrofluorocarbon (HFC) group. It is commonly used as a refrigerant in air conditioning and refrigeration systems, as well as in aerosol propellants and foam blowing agents. 1,1,1,2-Tetrafluoropropane is considered to have low toxicity and is non-flammable, making it a safer alternative to other refrigerants such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) that have been phased out due to their harmful impact on the environment and ozone layer. It has a global warming potential (GWP) of 1,430, much lower than that of many other HFCs, contributing to its use as a more environmentally friendly refrigerant option.

InChI:InChI=1/C3H4F4/c1-2(4)3(5,6)7/h2H,1H3

Upstream product

• 593-53-3 Methyl fluoride 
• 359-11-5 1,1,2-trifluoroethylene 
• 1652-80-8 2,2-dichloro-1,1,1,3,3,3-hexafluoro-propane 
• 661-97-2 1,2-dichlorohexafluoropropane 
• 116-15-4 perfluoropropylene 
• 5528-43-8 Z-1,2,3,3,3-pentafluoropropene 
• 431-31-2 1,1,1,2,3-pentafluoropropane 
• 812-30-6 1,1,2-trichloro-1,2,3,3,3-pentafluoropropane 
• 2804-55-9 1,1-dichloro-2,3,3,3-tetrafluoro-1-propene 
• 2804-49-1 1-chloro-1,2,3,3,3-pentafluoro-1-propene 
• 4259-43-2 1,1,1-trichloro-2,2,3,3,3-pentafluoropropane 
• 422-56-0 3,3-dichloro-1,1,1,2,2-pentafluoropropane 
• 507-55-1 1,3-dichloro-1,1,2,2,3-pentafluoropropane 
• 422-02-6 3-chloro-1,1,1,2,2-pentafluoropropane 

Downstream Products

• 677-21-4 1,1,1-trifluoropropylene 
• 421-07-8 1,1,1-trifluoropropane 
• 430-63-7 1,1-difluoropropene 

Relevant articles and documents

Activation of pentafluoropropane isomers at a nanoscopic aluminum chlorofluoride: Hydrodefluorination versus dehydrofluorination

The hydrofluorocarbon 245 isomers, 1,1,1,3,3-pentafluoropropane, 1,1,1,2,2- pentafluoropropane, and 1,1,1,2,3-pentafluoro-propane (HFC-245fa, HFC-245cb, and HFC-245eb) were activated through C-F bond activations using aluminium chlorofluoride (ACF) as a catalyst. The addition of the hydrogen source Et3SiH is necessary for the activation of the secondary and tertiary C-F bonds. Multiple C-F bond activations such as hydrodefluorinations and dehydrofluorinations were observed, followed by hydroarylation and Friedel-Crafts-type reactions under mild conditions.

USE OF COPPER-NICKEL CATALYSTS FOR DEHLOGENATION OF CHLOROFLUOROCOMPOUNDS

The disclosure describes a process for dehalogenation of chlorofluorocompounds. The process comprises contacting a saturated chlorofluorocompound with hydrogen in the presence of a catalyst at a temperature sufficient to remove chlorine and/or fluorine substituents to produce a fluorine containing terminal olefin.

PROCESS FOR THE PREPARATION OF 2, 3, 3, 3-TRIFLUOROPROPENE

The invention provides a process for the preparation of 1234yf comprising (a) contacting 1,1, 2,3,3, 3-hexafluoropropene (1216) with hydrogen in the presence of a hydrogenation catalyst to produce 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorinating 236ea to produce 1,2,3,3,3-pentafluoropropene (1225ye); (c) contacting 1225ye with hydrogen in the presence of a hydrogenation catalyst to produce 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorinating (245eb) to produce (1234yf).