377-36-6

Basic information

• Product Name: 1H,4H-OCTAFLUOROBUTANE
• Synonyms: 1,4-Dihydrooctafluorobutane;HFC-338MEE;1H,4H-OCTAFLUOROBUTANE;1,1,2,2,3,3,4,4-OCTAFLUOROBUTANE;Octafluorobutane;1H,4H-Octafluorobutane(HFC-338mee)99%;Butane,1,1,2,2,3,3,4,4-octafluoro;HFC-338pcc
• CAS NO: 377-36-6
• Molecular Formula: C₄H₂F₈
• Molecular Weight: 202.05
• Mol File: 377-36-6.mol
• Article Data: 5

Chemical Properties

• Melting Point: -79°C
• Boiling Point: 45°C
• Appearance: /
• Density: 1,56 g/cm3
• Vapor Pressure: 426mmHg at 25°C
• Refractive Index: 1.247
• CAS DataBase Reference: 1H,4H-OCTAFLUOROBUTANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1H,4H-OCTAFLUOROBUTANE(377-36-6)
• EPA Substance Registry System: 1H,4H-OCTAFLUOROBUTANE(377-36-6)

Safety Data

• Hazard Codes: Xi
• Safety Statements: 23
• Hazardous Substances Data: 377-36-6(Hazardous Substances Data)

Usage

General Description

1H,4H-OCTAFLUOROBUTANE is a fluorocarbon compound with the chemical formula C4F8. It is a colorless and odorless gas that is used as a refrigerant and a propellant in aerosol sprays. It has a high global warming potential and is considered a greenhouse gas. 1H,4H-OCTAFLUOROBUTANE is also used as a blowing agent in the production of foam insulation and as a solvent for cleaning electronic equipment. It is non-flammable and non-toxic, but it can displace oxygen in enclosed spaces and pose a suffocation risk. Additionally, it is listed as a controlled substance under the Montreal Protocol due to its potential to deplete the ozone layer.

InChI:InChI=1/C4H2F8/c5-1(6)3(9,10)4(11,12)2(7)8/h1-2H

Upstream product

• 67-56-1 methanol 
• 335-48-8 1,4-dibromo-1,1,2,2,3,3,4,4-octafluoro-butane 
• 124-38-9 carbon dioxide 
• 375-50-8 1,1,2,2,3,3,4,4-octafluoro-1,4-diiodobutane 
• 93449-49-1 1,1,1,6-tetrahydrooctafluoro-2-hexanone 
• 42287-75-2 6H-undecafluoro-hexan-2-one 

Relevant articles and documents

PRODUCTION METHOD OF PERFLUOROALKADIENE COMPOUND

PROBLEM TO BE SOLVED: To provide a method capable of obtaining a perfluoroalkandiene compound in a high yield while reducing the generation amount of impurities which are difficult to separate. SOLUTION: The production method is a method for producing a perfluoroalkandiene compound represented by the general formula (1): CF2=CF-(CF2)n-4-CF=CF2 (1) [in the formula, n represents an integer of 4 to 20.] and comprises a reaction step of reacting a compound represented by the general formula (2): CF2X1-CFX2-(CF2)n-4-CF2-CF2X3 (2) [in the formula, n is the same as defined above; X1, X2 and X3 are the same or different, X1 and X2 represent a halogen atom, and X3 represents a chlorine atom, a bromine atom or an iodine atom, provided that both X1 and X2 are not fluorine atoms] in the presence of a nitrogen-containing compound and zinc or a zinc alloy in an organic solvent in which the reaction step includes a mixing step of sequentially mixing a solution including zinc or a zinc alloy and an organic solvent, a nitrogen-containing compound and the compound represented by the general formula (2). SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT

Electrocarboxylation of α,ω-dihaloperfluoroalkanes and of perfluoroalkylhalides in a near-critical and supercritical CO2-methanol medium

The electrocatalytical carboxylations of some perfluoroalkylhalides and α,ω-dihaloperfluoroalkanes on copper and stainless steel electrodes in near-and supercritical CO2-methanol mixtures have been investigated. The main products and intermediates were determined. It was shown that the differences in the composition of products in these two cases indicate quite different catalytic activities of copper and stainless steel electrodes with regard to the electroreduction reactions of the intermediates and quite different adsorptions of these intermediates on the surfaces of the electrodes.

PERFLUORO- AND POLYFLUOROCHLOROKETONES IN HALOFORM CLEAVAGE REACTION

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