67334

Diphenyl ether

Selectophore^™, ≥99.9%

• Synonym(s): Diphenyl oxide, Phenyl ether
• Linear Formula: (C₆H₅)₂O
• CAS Number: 101-84-8
• Molecular Weight: 170.21
• Beilstein: 1364620
• EC Number: 202-981-2
• MDL number: MFCD00003034
• UNSPSC Code: 26111700
• PubChem Substance ID: 329760547
• NACRES: NB.61

Properties

• grade: for ion-selective electrodes
• Quality Level: 200
• vapor density: >5.86 (25 °C, vs air)
• vapor pressure: <1 mmHg ( 20 °C)
• product line: Selectophore^™
• Assay: ≥99.9% (GC); ≥99.9%
• form: solid
• 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.)
• SMILES string: O(c1ccccc1)c2ccccc2
• InChI: 1S/C12H10O/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10H
• InChI key: USIUVYZYUHIAEV-UHFFFAOYSA-N

Description

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.

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Application

Used as plasticizing solvent mediator for PVC-based membranes.

Legal Information

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS07,GHS09
• Signal Word: Warning
• Hazard Statements: H319,H410
• Precautionary Statements: P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P391
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 2 - Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): 239.0 °F - closed cup
• Flash Point(C): 115 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves