70648-26-9

Basic information

• Product Name: 1,2,3,4,7,8-hexachlorodibenzofuran
• Synonyms: 1,2,3,4,7,8-HEXACDF;123478HEXACHLORODIBENZO-PARA-FURAN;1,2,3,4,7,8-HCDF;1,2,3,4,7,8-HXCDF;1,2,3,4,7,8-HEXACHLORODIPHENYLENEOXIDE;Hexachlorodibenzofuran, 1,2,3,4,7,8-;1,2,3,4,7,8-hexachlorodibenzo[b,d]furan
• CAS NO: 70648-26-9
• Molecular Formula: C₁₂H₂Cl₆O
• Molecular Weight: 374.84
• Product Categories: Agro-Products, Aromatics, Heterocycles
• Mol File: 70648-26-9.mol
• Article Data: 12

Chemical Properties

• Melting Point: 226°C
• Boiling Point: 510.41°C (rough estimate)
• Flash Point: 241.4°C
• Appearance: /
• Density: 1.7200 (estimate)
• Vapor Pressure: 9.51E-09mmHg at 25°C
• Refractive Index: 1.7180 (rough estimate)
• Water Solubility: 0.008247ug/L(22.5 oC)
• CAS DataBase Reference: 1,2,3,4,7,8-hexachlorodibenzofuran(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4,7,8-hexachlorodibenzofuran(70648-26-9)
• EPA Substance Registry System: 1,2,3,4,7,8-hexachlorodibenzofuran(70648-26-9)

Safety Data

• RIDADR: 2811
• HazardClass: 6.1(a)
• PackingGroup: I
• Hazardous Substances Data: 70648-26-9(Hazardous Substances Data)

Usage

Uses

1,2,3,4,7,8-hexachlorodibenzofuran, is a toxic polychlorinated dibenzofurans (PCDD/F), detected in domestic meat and poultry. It can be used as purified standards for analytical, toxic, and biological studies of these environmental contaminants.

InChI:InChI=1/C12H2Cl6O/c13-4-1-3-6(2-5(4)14)19-12-7(3)8(15)9(16)10(17)11(12)18/h1-2H

Upstream product

• 95-95-4 2,4,5-trichlorophenol 
• 1912-24-9 6-chloro-N-ethyl-N'-isopropyl-1,3,5-triazine-2,4-diamine 
• 132-64-9 dibenzofuran 

Relevant articles and documents

Estimation of dioxin emission from fires in chemicals

The formation of the 17 toxic 2,3,7,8-substituted-PCDDs and PCDFs during combustion of selected chemicals were measured by high-resolution GC/MS. The 16 chemicals studied were commonly used chlorinated pesticides, industrial chemicals, and PVC. In a series of experiments carried out in a DIN 53,436 furnace, 2.5 g of these compounds were burned at 500°C and 900°C, respectively. The resultant yields ranged from 740 ng ITEQ/g for pentachlorophenol, to below 0.01 ng ITEQ/g for PVC and dichlobenil. The results show that some chemicals generate PCDD/F in very high - possibly dangerous - amounts during burning, whereas others generate insignificant amounts. The influence of scale were studied for chlorobenzene and 4-chloro- 3-nitro-benzoic acid in additional experiments, carried out in a cone calorimeter burning 20 g substance, and in ISO 9705 room test burning about 50 kg. A good agreement between the results for large and small scale indicated that formation of PCCD/F during a fire may be estimated from laboratory experiments. This suggest laboratory test may be used to screen for chemicals posing a hazard for release of PCDD/F during fires.

Formation and emission status of PCDDS/PCDFS in municipal solid waste incinerators in korea

This study was carried out to examine the formation and the emission status of polychlorinated dibenzo-p-dioxins/ polychlorinated dibenzofurans (PCDDs/PCDFs) in the flue gases of commercial-scale municipal solid waste (MSW) incinerators, and thus to provi

Emissions of PCDD/F from uncontrolled, domestic waste burning

Emissions of polychlorinated dibenzodioxin and dibenzofuran (PCDD/F) result from inefficiencies of combustion processes, most typically waste combustion. Uncontrolled combustion, such as occurs during so-called "backyard burning" of domestic waste, may th