Diphenyl ether
SIAL/67334 - Selectophore™, ≥99.9%
Synonym: Diphenyl oxide; Phenyl ether
CAS Number: 101-84-8
Empirical Formula (Hill Notation): C12H10O
Molecular Weight: 170.21
EC Number: 202-981-2
MDL Number: MFCD00003034
Linear Formula: (C6H5)2O
Product Type: Chemical
assay | ≥99.9% |
≥99.9% (GC) | |
autoignition temp. | 1144 °F |
bp | 259 °C (lit.) |
density | 1.073 g/mL at 25 °C (lit.) |
expl. lim. | 1.5 % |
form | solid |
grade | for ion-selective electrodes |
InChI | 1S/C12H10O/c1-3-7-11(8-4- |
InChI key | USIUVYZYUHIAEV-UHFFFAOYSA |
mp | 25-27 °C (lit.) |
27-29 °C | |
product line | Selectophore™ |
Quality Level | 200 ![]() |
refractive index | n |
SMILES string | O(c1ccccc1)c2ccccc2 |
vapor density | >5.86 (25 °C, vs air) |
vapor pressure | <1 mmHg ( 20 °C) |
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. |
General description: | Visit our Sensor Applications portal ![]() |
Legal Information: | Selectophore is a trademark of Sigma-Aldrich Chemie GmbH |
Symbol | ![]() ![]() |
Signal word | Warning |
Hazard statements | H319 - H410 |
Precautionary statements | P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P391 |
Hazard Codes | Xi,N |
Risk Statements | 36-51/53 |
Safety Statements | 26-60-61 |
RIDADR | UN 3077 9 / PGIII |
WGK Germany | WGK 2 |
Flash Point(F) | 239.0 °F - closed cup |
Flash Point(C) | 115 °C - closed cup |
Purity | ≥99.9% (GC); ≥99.9% |
bp | 259 °C (lit.) |
mp | 25-27 °C (lit.); 27-29 °C |
Density | 1.073 g/mL at 25 °C (lit.) |
Refractive Index | n |
UNSPSC | 26111700 |