Triphenylarsine oxide
Synonym(s):(Diphenylarsoroso)benzene;Triphenylarsine monoxide
- CAS NO.：1153-05-5
- Empirical Formula: C18H15AsO
- Molecular Weight: 322.23
- MDL number: MFCD00019905
- EINECS: 214-571-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:54:55
What is Triphenylarsine oxide?
Purification Methods
The anhydrous oxide crystallises from *C6H6, whereas the monohydrate separates from EtOH with m 118o (m 114-117o was also reported). [Beilstein 16 H 846, 16 I 433, 16 II 433, 16 III 1022, 16 IV 1139.] HIGHLY TOXIC.
Properties of Triphenylarsine oxide
| Melting point: | 191-193 °C (lit.) |
| Boiling point: | 468.4±28.0 °C(Predicted) |
| storage temp. | Poison room |
| BRN | 2939833 |
| EPA Substance Registry System | Triphenylarsine oxide (1153-05-5) |
Safety information for Triphenylarsine oxide
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Environment GHS09 |
| GHS Hazard Statements |
H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. |
Computed Descriptors for Triphenylarsine oxide
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