2681-00-7

Basic information

• Product Name: 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE
• Synonyms: 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE;1,8-Diiodo-3,3,4,4,5,5,6,6-octafluorooctane 97%;1,8-Diiodo-3,3,4,4,5,5,6,6-octafluorooctane97%;1,8-Diiodo-1H,1H,2H,2H,7H,7H,8H,8H-perfluorooctane;3,3,4,4,5,5,6,6-Octafluoro-1,8-diiodooctane
• CAS NO: 2681-00-7
• Molecular Formula: C₈H₈F₈I₂
• Molecular Weight: 509.95
• Mol File: 2681-00-7.mol
• Article Data: 7

Chemical Properties

• Melting Point: 91-93°C
• Boiling Point: 290°Cat760mmHg
• Flash Point: 126.2°C
• Appearance: /
• Density: 2.107g/cm³
• Vapor Pressure: 0.00369mmHg at 25°C
• Refractive Index: 1.459
• CAS DataBase Reference: 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE(2681-00-7)
• EPA Substance Registry System: 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE(2681-00-7)

Safety Data

• Hazard Codes: T
• Statements: 23/24/25
• Safety Statements: 23-24/25
• RIDADR: 2811
• HazardClass: TOXIC
• Hazardous Substances Data: 2681-00-7(Hazardous Substances Data)

Usage

General Description

1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE, also known as perfluorooctane diiodide, is a synthetic chemical compound with the molecular formula C8F18I2. It is a member of the perfluorinated organic compound family, which are known for their unique properties, such as chemical stability, resistance to heat and chemical attack, and low surface tension. This chemical is often used as a starting material in the synthesis of fluorinated compounds and as a reagent in organic chemistry reactions. It is also used as a high-temperature lubricant, heat transfer fluid, and in other industrial applications where non-reactive and stable compounds are required. However, 1,8-DIIODO-3,3,4,4,5,5,6,6-OCTAFLUOROOCTANE is also a persistent environmental pollutant and has been identified as a potential health hazard due to its accumulation in the environment and potential for bioaccumulation in organisms. Efforts are being made to limit its use and find more sustainable alternatives.

InChI:InChI=1/C8H8F8I2/c9-5(10,1-3-17)7(13,14)8(15,16)6(11,12)2-4-18/h1-4H2

Upstream product

• 74-85-1 ethene 
• 375-50-8 1,1,2,2,3,3,4,4-octafluoro-1,4-diiodobutane 

Downstream Products

• 678-65-9 3,3,4,4,5,5,6,6-octafluoro-1,7-octadiene 
• 132833-42-2 1,8-diazido-3,3,4,4,5,5,6,6-octafluorooctane 
• 83192-87-4 3,3,4,4,5,5,6,6-octafluoro-1,8-octanediol 
• 132942-76-8 C₄₄H₃₈F₈N₂P₂ 
• 336-08-3 perfluoroadipic acid 

Relevant articles and documents

PARTIALLY FLUORINATED SULFINIC ACID MONOMERS AND THEIR SALTS

Described herein is a composition according to formula I or its precursor, formula II: CX1X3=CX2-(R1)p-CZ1 Z2-SO2M (I) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, and wherein at least one of X1, X2, or X3 is a H; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group; p is 0 or 1; and M is a cation; and CX4X1X3-CX5X2-(R1)p-CZ1Z2-SO2M (II) wherein X1, X2, and X3 are independently selected from H, F, Cl, Br, I, CF3 and CH3, wherein at least one of X1, X2, or X3 is a H, and X4 and X5 are independently selected from H, F, Cl, Br and I; R1 is a linking group; Z1 and Z2 are independently selected from F, Cl, Br, I, CF3, and a perfluoroalkyl group, p is 0 or 1; and M is selected from F, and a cation.

Fluorine-containing α,β-bifunctional compounds and process for their production

A fluorine-containing α,ω-bifunctional compound having the formula: STR1 wherein each of R1 and R2 independently is a hydrogen atom, an alkyl group or an aralkyl group; X is --COOH, --COOR3, --COY or --NCO, wherein R3 is an alkyl group or an aralkyl group and Y is a halogen atom or N3 ; and n is an integer of at least 1 provided that when X is --COOH, n is an integer of at least 4.

SYNTHESIS OF FLUORINE-CONTAINING NITRO COMPOUNDS

Fluoronitro alkanes (5a and 5b), possesing the structure -CF2CH2CH(NO2)2, were synthesized from 1-iodo-1H,1H,2H,2H-perfluoroalkanes by displacing the iodide with sodium nitrite and then oxidatively nitrating the 1-nitro-1H,1H,2H,2H-perfluoroalkanes with tetranitromathane.Reaction with formaldehyde gave the dinitroalcohols, 6a and 6b. α,ο-diiodoperfluoroalkames (1c and 1d) were similarly converted to tetranitrofluoroalkanes (5c and 5d), characterized as tetranitrodiols 6c and 6d, and Michael adducts with methyl acrylate, 7c and 7d.