dibenzofuran

Dibenzo[b,d]furan

132-64-9

diphenylene oxide

Dibenzofurans

2,2'-Biphenylene oxide

2,2'-Biphenylylene oxide

Dibenzo(b,d)furan

dibenzofurane

(1,1'-Biphenyl)-2,2'-diyl oxide

[1,1'-Biphenyl]-2,2'-diyl oxide

DTXSID2021993

CHEBI:28145

8U54U639VI

NSC-1245

Dibenzol(b,d)furan

DTXCID801993

CAS-132-64-9

CCRIS 1436

HSDB 2163

NSC 1245

EINECS 205-071-3

UNII-8U54U639VI

AI3-00039

dibenzo[bd]furan

Dibenzofuran, 98%

[1,2'-diyl oxide

DIBENZOFURAN [MI]

bmse000548

DIBENZOFURAN [HSDB]

SCHEMBL8207

CHEMBL277497

Dibenzofuran, analytical standard

NSC1245

DIBENZO (b,d) FURAN (purity)

Tox21_202116

Tox21_300052

BDBM50408362

MFCD00004968

STL185574

AKOS000120971

CS-W017802

HY-W017086

MCULE-9430669072

PS-5378

NCGC00164102-01

NCGC00164102-02

NCGC00164102-03

NCGC00254221-01

NCGC00259665-01

AC-19766

Dibenzofuran D8 10 mug/mL in Cyclohexane

DB-042123

D0147

NS00010742

EN300-18022

C07729

Q419513

Q-101160

Z57127512

Dibenzo[b,d]furan, BCR(R) certified Reference Material

8-oxatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),3,5,10,12-hexaene

8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,5,10,12-hexaene

InChI=1/C12H8O/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8

1IT

The Henry's Law constant for dibenzofuran is estimated as 2.1X10-4 atm-cu m/mole(SRC) derived from its vapor pressure, 0.00248 mm Hg(1), and water solubility, 3.1 mg/l(2). This Henry's Law constant indicates that dibenzofuran is expected to volatilize from water surfaces(3). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(3) is estimated as 5 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(3) is estimated as 7 days(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column(SRC). The estimated volatilization half-life from a model pond is 82 days if adsorption is considered(4). Dibenzofuran's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). However, volatilization from moist soil surfaces is expected to be attenuated by adsorption to soil(SRC). Dibenzofuran is not expected to volatilize from dry soil surfaces(SRC) based upon its vapor pressure(1).

The Koc of dibenzofuran is estimated as 4,200(SRC), using a log Kow of 4.12(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that dibenzofuran is expected to have slight mobility in soil(SRC). Monitoring of dibenzofuran in contaminated groundwater beneath an abandoned creosote facility in Conroe, TX has suggested that leaching of dibenzofuran may be much more important than predicted from estimation methods, although soil from this location had a very low organic content and other co-contaminants present(4). Sorption of creosote compounds (including dibenzofuran) were measured on natural clayey till soil column(5); a Kd of 4.31 l/kg was measured for dibenzofuran (in the presence of other creosote compounds)(5).