1,3-Diphenylbenzene

Synonym(s):1,3-Diphenylbenzene

CAS NO.：92-06-8
Empirical Formula: C18H14
Molecular Weight: 230.3
MDL number: MFCD00003059
EINECS: 202-122-1
SAFETY DATA SHEET (SDS)
Update Date: 2024-08-07 19:09:42

What is 1,3-Diphenylbenzene?

Chemical properties

Needles.

The Uses of 1,3-Diphenylbenzene

m-Terphenyl is a polychlorinated terphenyl used in electronic equipments, lubricants, sealants and other devices. It is also found as a global environmental contaminant.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 3162, 1986 DOI: 10.1021/jo00366a016

General Description

Yellow solid. Mp 86-87°C; bp: 365°C. Density: 1.195 g cm-3. Insoluble in water. Usually shipped as a solid mixture with its isomers o-terphenyl and p-terphenyl that is used as a heat-transfer fluid.

Reactivity Profile

1,3-Diphenylbenzene is non-flammable but combustible (flash point 403°F). Extremely stable thermally. Incompatible with strong oxidizing agents but not very reactive at room conditions.

Hazard

Moderately toxic by ingestion. Combustible. Eye and upper respiratory tract irritant.

Safety Profile

Moderately toxic by ingestion. Combustible when exposed to heat or flame. To fight fire, use water, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Purify it as for o-terphenyl above. [Beilstein 5 IV 2480.]

Properties of 1,3-Diphenylbenzene

Melting point:	84-88 °C (lit.)
Boiling point:	379 °C (lit.)
Density	1,2 g/cm³
refractive index	1.5681 (estimate)
Flash point:	191°C
form	neat
color	White to Light yellow
Water Solubility	1.511mg/L(25 ºC)
BRN	1864778
Exposure limits	NIOSH: IDLH 500 mg/m3; Ceiling 0.5 ppm(5 mg/m3)
CAS DataBase Reference	92-06-8(CAS DataBase Reference)
NIST Chemistry Reference	m-Terphenyl(92-06-8)
EPA Substance Registry System	m-Terphenyl (92-06-8)

Safety information for 1,3-Diphenylbenzene

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Environment GHS09
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H400:Hazardous to the aquatic environment, acute hazard
Precautionary Statement Codes	P273:Avoid release to the environment. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.