Biphenyl

1,1'-Biphenyl

92-52-4

Phenylbenzene

DIPHENYL

Bibenzene

Xenene

1,1'-Diphenyl

Lemonene

Phenador-X

Tetrosin LY

Carolid AL

PHPH

DIPHENYL-4-D1

Biphenyl [BSI:ISO]

1,1-Biphenyl

FEMA No. 3129

NSC 14916

6120-99-6

2L9GJK6MGN

4819-98-1

E230

CHEMBL14092

DTXSID4020161

CHEBI:17097

MFCD00003054

NSC-14916

68409-73-4

BNL

DTXCID60161

Caswell No. 087

CAS-92-52-4

CCRIS 935

HSDB 530

diphenyl, 14C-labeled

MCS 1572

EINECS 202-163-5

UNII-2L9GJK6MGN

CP 390

EPA Pesticide Chemical Code 017002

meta biphenyl

bi-phenyl

AI3-00036

4-Biphenyl

Diphenyl,(S)

Biphenyl-UL-14C

4,4'-biphenyl

1,1''-biphenyl

1, 1'-Diphenyl

Biphenyl, >=99%

BIPHENYL [FHFI]

BIPHENYL [HSDB]

BIPHENYL [ISO]

DIPHENYL [MI]

WLN: RR

DIPHENYL [MART.]

1,1'-Biphenyl, 9CI

BIPHENYL [USP-RS]

bmse000506

EC 202-163-5

Biphenyl, analytical standard

BIDD:ER0669

INS NO.230

FEMA 3129

INS-230

NSC14916

Tox21_202108

Tox21_300167

BDBM50168002

Biphenyl 100 microg/mL in Methanol

Biphenyl, ReagentPlus(R), 99.5%

STL264192

Biphenyl 10 microg/mL in Cyclohexane

AKOS000119944

MCULE-2274387658

NCGC00091836-01

NCGC00091836-02

NCGC00091836-03

NCGC00091836-04

NCGC00254175-01

NCGC00259657-01

Biphenyl, Vetec(TM) reagent grade, 99%

BS-42211

DB-038208

B0224

B0465

Biphenyl, PESTANAL(R), analytical standard

E-230

NS00010251

EN300-18009

C06588

Q410915

W-100283

Biphenyl, certified reference material, TraceCERT(R)

F9995-1632

Biphenyl, United States Pharmacopeia (USP) Reference Standard

InChI=1/C12H10/c1-3-7-11(8-4-1)12-9-5-2-6-10-12/h1-10

26008-28-6

The Henry's Law constant for biphenyl is 3.08X10-4 atm-cu m/mole(1). This Henry's Law constant indicates that biphenyl is expected to volatilize from water surfaces(2). 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)(2) is estimated as 4 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)(2) is estimated as 6 days(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The estimated volatilization half-life from a model pond is 41 days if adsorption is considered(3). Biphenyl's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The rate of volatilization from moist soil was found to be rapid(4). A desorption rate constant (attributed to volatilization) of 3.2X10-3/hr (half-life = 9 days) was measured using PCB-contaminated, aged sediments from the Rhine River, Germany(5). However, the importance of volatilization should decrease as the soil depth increases(5). Biphenyl is not expected to volatilize from dry soil surfaces(SRC) based upon its vapor pressure of 8.93X10-3 mm Hg(6).

In three soils, the log Koc was determined to be in the range 2.94-3.52 (Koc of 871-3,331)(1). The experimental mean log Koc value in five soils was 3.16 (Koc of 1,445)(3). The log Koc value in humic acids was determined to be 3.27 (Koc of 1,862)(4). According to a recommended classification scheme(2), these log Koc values indicate biphenyl may have low to slight mobility in soil(SRC). A log Koc of 5.09 was measured using soot columns and an SRM-1650 soot standard obtained from NIST(5). A retardation factor (Rf) of 2.1 was measured for biphenyl using soil columns filled with a surface soil (organic carbon = 12.6%, 60.3% sand, 24.0% silt, 15.7% clay, porosity = 0.7)(6). A retardation factor of 2.2-2.3 was measured for biphenyl on columns packed with low carbon aquifer material(7). The sorption of biphenyl on HDTMA clays indicated that sorption occurs via partition interactions with the HDTMA-derived organic phase. The greater the HDTMA content and the larger spacings of high charge HDTMA clays increased biphenyl's sorption(8).