Dibenzodioxin

Structural formula
General
Surname	Dibenzodioxin
other names	Dibenzo- p- dioxin Dibenzo [1,4] dioxin Oxanthrene
Molecular formula	C 12 H 8 O 2
External identifiers / databases
CAS number 262-12-4 EC number 205-974-2 ECHA InfoCard 100.005.432 PubChem 9216 Wikidata Q425380
properties
Molar mass	184.20 g mol −1
Physical state	firmly
Melting point	122 ° C
boiling point	283.5 ° C
Vapor pressure	5.5 m Pa (25 ° C)
solubility	almost insoluble in water (0.90 mg l −1 at 25 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 302-411 P: ?
Toxicological data	866 mg kg −1 ( LD 50 ,  mouse ,  oral ) 1220 mg kg −1 ( LD 50 ,  rat ,  oral ) 30 mg kg −1 ( LD 50 ,  rat ,  ip )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Dibenzodioxin is a heterocyclic aromatic organic compound consisting of a 1,4-dioxin with two fused benzene rings. The exact chemical name is dibenzo- p- dioxin, since the isomeric dibenzo- o- dioxin also exists alongside this . Dibenzodioxin is an aromatic ether . Its sulfur analogue is thianthrene .

Polyhalogenated derivatives are very well known as dioxins .

properties

The octanol-water partition coefficient log K _OW of dibenzodioxin is 4.30.

Individual evidence

1. ↑ ^{a b c} Entry on dibenzo-p-dioxin in the SRC PhysProp Database , accessed on September 11, 2012.
2. ↑ ^{a b} Rene P. Schwarzenbach , Philip M. Gschwend, Dieter M. Imboden: Environmental Organic Chemistry . Wiley-Interscience, Hoboken, New Jersey 2003, ISBN 0-471-35750-2 .
3. ↑ There is not yet a harmonized classification for this substance . A labeling of dibenzo-p-dioxin in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on April 8, 2018, is reproduced from a self-classification by distributors .
4. ↑ ^{a b c} Entry on dibenzodioxin in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on April 8, 2018.