680-54-6

Basic information

• Product Name: 1,1,2,3,3,4,4-HEPTAFLUORO-1-BUTENE
• Synonyms: 1H-PERFLUORO-BUT-1-ENE;1,1,2,3,3,4,4-HEPTAFLUORO-1-BUTENE;1,1,2,3,3,4,4-HEPTAFLUOROBUT-1-ENE
• CAS NO: 680-54-6
• Molecular Formula: C₄HF₇
• Molecular Weight: 182.04
• Mol File: 680-54-6.mol

Chemical Properties

• Boiling Point: 21°C
• Appearance: /
• Density: 1.44g/cm³
• Vapor Pressure: 845mmHg at 25°C
• Refractive Index: 1.269
• CAS DataBase Reference: 1,1,2,3,3,4,4-HEPTAFLUORO-1-BUTENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,2,3,3,4,4-HEPTAFLUORO-1-BUTENE(680-54-6)
• EPA Substance Registry System: 1,1,2,3,3,4,4-HEPTAFLUORO-1-BUTENE(680-54-6)

Safety Data

• Hazard Codes: Xi
• Statements: 20
• Safety Statements: 23-38
• RIDADR: 3163
• HazardClass: GAS
• Hazardous Substances Data: 680-54-6(Hazardous Substances Data)

Usage

Uses

Used in Refrigeration Industry:
1,1,2,3,3,4,4-Heptafluoro-1-butene is used as a refrigerant for its non-flammable and stable properties, making it a preferred choice over substances that deplete the ozone layer.
Used in Propellant Applications:
In the propellant industry, 1,1,2,3,3,4,4-Heptafluoro-1-butene serves as a propellant due to its ability to provide a controlled release of substances, leveraging its stable and non-flammable nature.
Used as a Solvent:
1,1,2,3,3,4,4-Heptafluoro-1-butene is utilized as a solvent in various chemical processes, capitalizing on its stability and low reactivity with other compounds.
Used in Environmentally Friendly Applications:
Given its low global warming potential, 1,1,2,3,3,4,4-Heptafluoro-1-butene is employed in applications seeking to minimize environmental impact, offering a greener alternative to traditional substances with higher potential for global warming.

InChI:InChI=1/C4HF7/c5-1(2(6)7)4(10,11)3(8)9/h3H

Upstream product

• 335-48-8 1,4-dibromo-1,1,2,2,3,3,4,4-octafluoro-butane 
• 375-50-8 1,1,2,2,3,3,4,4-octafluoro-1,4-diiodobutane 
• 678-13-7 1,2-dichloro-1,1,2,3,3,4,4-heptafluoro-4-iodo-butane 

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

Method of preparing perfluoroalkadiene

Disclosed herein is a method of preparing a perfluoroalkadiene. A dihaloperfluorocarbon used as a starting material is added dropwise to a nonpolar organic solvent, a metal powder and an organic metal compound. The dihaloperfluorocarbon is slowly added dropwise in a temperature range from 30° C. to 150° C. for a certain period of time. Moreover, the nonpolar organic solvent used may be benzene, toluene, xylene, etc., and the organic metal compound is used by being dissolved in ethyl ether or tetrahydrofuran at a concentration of 1 to 3M. The metal powder used may be Mg, Zn, Cd, etc.