3314. Diphenyl

Nomenclature

CAS number: 92-52-4
1,1′-Biphenyl; bibenzene; phenylbenzene.
C12H10; mol wt 154.21.
C 93.46%, H 6.54%.

Description and references

Toxicity data: Deichmann et al., J. Ind. Hyg. Toxicol. 29, 1 (1947). Review: W. C. Weaver et al., in Kirk-Othmer Encyclopedia of Chemical Technology vol. 7 (Wiley-Interscience, New York, 3rd ed., 1979) pp 782-793.

Chemical structure

Properties

Colorless leaflets; pleasant, peculiar odor. d 1.041. mp 69-71°. bp 254-255°. nD77 1.588. Insol in water. Sol in alc, ether. LD50 orally in rats: 3280 mg/kg (Deichmann).

Caution

Potential symptoms of overexposure are irritation of throat and eyes; headache, nausea, fatigue and numb limbs; liver damage. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 120.

Use

As heat transfer agent; fungistat for oranges (applied to inside of shipping container or wrappers); in organic syntheses.