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67334 Sigma-Aldrich

Diphenyl ether

Selectophore, ≥99.9%

Synonym: Diphenyl oxide, Phenyl ether

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Properties

Related Categories Analytical/Chromatography, Ion Sensor Materials, Plasticizer for ISE More...
grade   Selectophore
vapor density   >5.86 (25 °C, vs air)
vapor pressure   <1 mmHg ( 20 °C)
InChI Key   USIUVYZYUHIAEV-UHFFFAOYSA-N
assay   ≥99.9% (GC)
  ≥99.9%
autoignition temp.   1144 °F
expl. lim.   1.5 %
refractive index   n20/D 1.579(lit.)
bp   259 °C(lit.)
mp   25-27 °C(lit.)
  27-29 °C
density   1.073 g/mL at 25 °C(lit.)

Description

Application

Used as plasticizing solvent mediator for PVC-based membranes.

General description

Diphenyl ether (diphenyl oxide) belongs to the family of aromatic homomonocyclic compounds. It is colorless, exists as crystalline solid or liquid (above 82°F) and has a geranium-like odor. Diphenyl ether is present in alcoholic beverages. It is used as a flavouring ingredient and is found in vanilla, green tea, muscat grapes, potato chips, grilled beef, buckwheat, and lemon balm. It is a starting material in the production of phenoxathiin via the Ferrario reaction.. In similar reactions, diphenyl ether is a significant side product in the high-pressure hydrolysis of chlorobenzene during production of phenol. Also several polybrominated diphenyl ethers (PBDEs) are useful flame retardants.

Legal Information

Selectophore is a trademark of Sigma-Aldrich Chemie GmbH

Price and Availability

Safety & Documentation

Safety Information

Symbol 
GHS09  GHS09
Signal word 
Warning
Hazard statements 
Personal Protective Equipment 
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
2
RTECS 
KN8970000
Flash Point(F) 
239 °F
Flash Point(C) 
115 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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