Diphenyl ether

Diphenyl ether
Names
	Preferred IUPAC name 1,1′-Oxydibenzene
	Systematic IUPAC name Phenoxybenzene
	Other names Oxydibenzene; Diphenyl ether; Diphenyl oxide; 1,1′-Oxybisbenzene; Phenoxybenzene
Identifiers
CAS Number	101-84-8 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1364620
ChEBI	CHEBI:39258 ;
ChEMBL	ChEMBL38934 ;
ChemSpider	7302 ;
ECHA InfoCard	100.002.711
EC Number	202-981-2;
Gmelin Reference	165477
PubChem CID	7583;
RTECS number	KN8970000;
UNII	3O695R5M1U ;
UN number	3077
CompTox Dashboard (EPA)	DTXSID9021847 ;
	InChI InChI=1S/C12H10O/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10H Key: USIUVYZYUHIAEV-UHFFFAOYSA-N ; InChI=1/C12H10O/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10H Key: USIUVYZYUHIAEV-UHFFFAOYAV;
	SMILES O(c1ccccc1)c2ccccc2;
Properties
Chemical formula	C12H10O
Molar mass	170.211 g·mol−1
Appearance	Colorless solid or liquid
Odor	geranium-like
Density	1.08 g/cm3 (20 °C)
Melting point	25 to 26 °C (77 to 79 °F; 298 to 299 K)
Boiling point	258.55 °C (497.39 °F; 531.70 K) at 100 kPa (1 bar),; 121 °C at 1.34 kPa (10.05 mm Hg)
Solubility in water	Insoluble
Vapor pressure	0.02 mmHg (25 °C)
Magnetic susceptibility (χ)	-108.1·10−6 cm3/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319, H400, H411
Precautionary statements	P264, P273, P280, P305+P351+P338, P337+P313, P391, P501
NFPA 704 (fire diamond)	2 1
Flash point	115 °C (239 °F; 388 K)
Explosive limits	0.7%–6.0%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	3370 mg/kg (rat, oral); 4000 mg/kg (rat, oral); 4000 mg/kg (guinea pig, oral)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 ppm (7 mg/m3)
REL (Recommended)	TWA 1 ppm (7 mg/m3)
IDLH (Immediate danger)	100 ppm
Safety data sheet (SDS)	Aldrich MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diphenyl ether is the organic compound with the formula (C₆H₅)₂O. It is a colorless, low-melting solid. This, the simplest diaryl ether, has a variety of niche applications.

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