24270-66-4

Basic information

• Product Name: 1,1,2,3,3-Pentafluoropropane
• Synonyms: 1,1,2,3,3-Pentafluoropropane;HFC 245ea; R 245ea
• CAS NO: 24270-66-4
• Molecular Formula: C3H3F5
• Molecular Weight: 134.05
• Product Categories: refrigerants
• Mol File: 24270-66-4.mol
• Article Data: 5

Chemical Properties

• Boiling Point: -3.77°C (rough estimate)
• Appearance: /
• Density: 1.1440 (estimate)
• Refractive Index: 1.2823 (estimate)
• CAS DataBase Reference: 1,1,2,3,3-Pentafluoropropane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,2,3,3-Pentafluoropropane(24270-66-4)
• EPA Substance Registry System: 1,1,2,3,3-Pentafluoropropane(24270-66-4)

Safety Data

• Hazardous Substances Data: 24270-66-4(Hazardous Substances Data)

Usage

Appearance

Colorless gas

Flammability

Non-flammable

Function

Gaseous fire suppressant

Type

Halogenated hydrocarbon

Alternative to

Halon fire suppressants

Ozone Depletion

Less ozone-depleting than halon

Environmental Impact

Different sources of media describe the Environmental Impact of 24270-66-4 differently. You can refer to the following data:
1. Less harmful to the environment than halon
2. Low environmental impact

Heat Absorption Capacity

High

Effectiveness

Effective for fires involving flammable liquids, gases, and electrical equipment

Electrical Properties

Non-conductive

Corrosiveness

Non-corrosive

Suitability

Suitable for use in sensitive electronic and electrical equipment

Toxicity

Low toxicity

Usage

Widely used in total flooding fire suppression systems

Industries

Aerospace, telecommunications, and marine industries

Upstream product

• 74-98-6 propane 
• 76-17-5 1,2,3-trichloro-1,1,2,3,3-pentafluoropropane 
• 679-86-7 1,1,2,2,3-pentafluoropropane 

Relevant articles and documents

PROCESSES FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE AND/OR 1,2,3,3-TETRAFLUOROPROPENE

A process is disclosed for making CF3CF=CH2 or mixtures thereof with CHF2CF=CHF. This process involves (a) reacting CHCI2CF2CF3, and optionally CHCIFCF2CCIF2, with H2 in the presence of a catalytically effective amount of a hydrogenation catalyst to form CH3CF2CF3 and, when CHCIFCF2CCIF2 is present, CH2FCF2CHF2; (b) dehydrofluorinating CH3CF2CF3, and optionally any CH2FCF2CHF2, from (a) to form a product mixture including CF3CF=CH2 and, if CH2FCF2CHF2 Js present, CHF2CF=CHF; and optionally (c) recovering CF3CF=CH2, or a mixture thereof with CHF2CF=CHF from the product mixture formed in (b) and/or (d) separating at least a portion of any CHF2CF=CHF in the product mixture formed in (b) from the CF3CF=CH2 in the product mixture formed in (b).

Selective reduction of halopolyfluorocarbons by organosilicon hydrides

It is demonstrated that silicon hydrides can be used for reduction of polyfluorinated halocarbons. For example, the reaction between CF3CCl2F and excess triethylsilane, catalyzed by benzoyl peroxide, leads to the formation of a mixture containing CF3CHClF (major), CF3CH2F, and ClSi(C2H5)3. On the other hand, the reaction of chlorofluoroalkanes, containing an internal -CCl2- group readily proceeds with reduction of both chlorines, leading to compounds such as (CF3)2CH2 and CF3CH2C2F5. In contrast to chlorofluoroalkanes, bromofluoroalkanes are much more reactive and reaction with hydrosilane rapidly proceeds without the catalyst at elevated temperature.

Reductive dehalogenation of polyhalofluorocarbons with tributyltin hydride

The reduction of polyhalofluorocarbons, including ClCF2CFClCF2Cl, (ClCF2CFCl)2, ICH2(CF2)3CH2I and vicinal dichloroperfluorocycloalkanes, with tributyltin hydride gave the corresponding hydrofluorocarbons in good to excellent yield.The results are compared with similar reductions with other reducing agents, and to tin hydride reductions of non-fluorinated analogs. - Keywords: Reductive dehalogenation; Polyfluorocarbons; Tributyltin hydride; NMR spectroscopy; Hydrofluorocarbons