69698-58-4

Basic information

• Product Name: 1,2,3,4,6,8,9-HEPTACHLORODIPHENYLENEOXIDE
• Synonyms: 1,2,3,4,6,8,9-HEPTACHLORODIPHENYLENEOXIDE
• CAS NO: 69698-58-4
• Molecular Formula: C12HCl7O
• Molecular Weight: 409.31
• Mol File: 69698-58-4.mol
• Article Data: 3

Chemical Properties

• Melting Point: 211.5°C
• Boiling Point: 542.04°C (rough estimate)
• Flash Point: 255.2°C
• Appearance: /
• Density: 1.7800 (estimate)
• Vapor Pressure: 1.41E-09mmHg at 25°C
• Refractive Index: 1.7200 (rough estimate)
• CAS DataBase Reference: 1,2,3,4,6,8,9-HEPTACHLORODIPHENYLENEOXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4,6,8,9-HEPTACHLORODIPHENYLENEOXIDE(69698-58-4)
• EPA Substance Registry System: 1,2,3,4,6,8,9-HEPTACHLORODIPHENYLENEOXIDE(69698-58-4)

Safety Data

• Hazardous Substances Data: 69698-58-4(Hazardous Substances Data)

Usage

Uses

1,2,3,4,6,8,9-Heptachlorodibenzofuran is a standard used in environmental testing and research such as the study of contaminants in contaminant-free areas as well as dibenzofuran-contaminated sediments.

InChI:InChI=1/C12HCl7O/c13-2-1-3(14)11-4(6(2)15)5-7(16)8(17)9(18)10(19)12(5)20-11/h1H

Upstream product

• 39001-02-0 1,2,3,4,6,7,8,9-octachlorodibenzofuran 

Relevant articles and documents

Natural formation of chlorinated phenols, dibenzo-p-dioxins, and dibenzofurans in soil of a Douglas fir forest

The natural formation of 4-MCP, 24/25- and 26-DCP, and 245-TrCP was detected in four selected areas of a rural Douglas fir forest where the humic layer was spiked in situ with a solution of Na37Cl and covered by an enclosure, after 1 year of incubation. Chlorinated phenols (CP) can be formed naturally from organic matter and inorganic chloride by either de novo synthesis or chloroperoxidase (CPO)-catalyzed chlorination. The natural CP congeners were found to be present in high concentrations in soil compared to the other congeners, except for 245-TrCP which was present in a relatively low concentration. This study did not reveal which source, natural or anthropogenic, caused the observed concentrations. Some 20 chlorinated dibenzo-p-dioxins and dibenzofurans (CDD/F) were found to be formed naturally in soil of the Douglas fir forest; the formation of three 2,3,7,8-substituted congeners, 2378-TeCDD, 12378-PeCDD, and 123789-HxCDD, deserves special attention. A formation mechanism has been proposed which starts from naturally formed CP congeners and which probably involves peroxidase mediation. Chlorination of CDD/F congeners by the CPO-mediated reaction cannot be ruled out, but seems to be less likely due to the absence of several predicted congeners. The natural formation of 4-MCP, 24/25- and 26-DCP, and 245-TrCP was detected in four selected areas of a rural Douglas fir forest where the humic layer was spiked in situ with a solution of Na37Cl and covered by an enclosure, after 1 year of incubation. Chlorinated phenols (CP) can be formed naturally from organic matter and inorganic chloride by either de novo synthesis or chloroperoxidase (CPO)-catalyzed chlorination. The natural CP congeners were found to be present in high concentrations in soil compared to the other congeners, except for 245-TrCP which was present in a relatively low concentration. This study did not reveal which source, natural or anthropogenic, caused the observed concentrations. Some 20 chlorinated dibenzo-p-dioxins and dibenzofurans (CDD/F) were found to be formed naturally in soil of the Douglas fir forest; the formation of three 2,3,7,8-substituted congeners, 2378-TeCDD, 12378-PeCDD, and 123789-HxCDD, deserves special attention. A formation mechanism has been proposed which starts from naturally formed CP congeners and which probably involves peroxidase mediation. Chlorination of CDD/F congeners by the CPO-mediated reaction cannot be ruled out, but seems to be less likely due to the absence of several predicted congeners.

Photodegradation of Octachlorodibenzofuran in 1,4-Dioxane under Xenon Lamp Irradiation

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