Substance profile
2,4,6-Trimethylbenzoyl diphenylphosphine oxide
2,4,6-Trimethylbenzoyl diphenylphosphine oxide: large Crystals; Liquid; Liquid; CBI; Dry Powder.
01 · Identification
What 2,4,6-Trimethylbenzoyl… is
2,4,6-Trimethylbenzoyl diphenylphosphine oxide: large Crystals; Liquid; Liquid; CBI; Dry Powder. It boils at 300 °C, melts at 93 °C.
Under the GHS it carries the signal word Danger.
Other names for 2,4,6-Trimethylbenzoyl…
- diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
03 · Physical and chemical properties
2,4,6-Trimethylbenzoyl… properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 300 °C (572 °F) | above this value | Pertti |
| Melting point | 93 °C (199.4 °F) | OECD Guideline 102 | Pertti |
| Density | 1.218 g/cm³ | at 20 °C, OECD 109 | Pertti |
| Vapor pressure | 2.284e-8 mmHg | at 25 °C | Pertti |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on 2,4,6-Trimethylbenzoyl…
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
Water solubility: 3.3 mg/L at 20 °C (OECD Guideline 105, Flask method) and 11.9 mg/L at 20 °C (OECD Guideline 105, Column elution). Readily soluble in dichloromethane, acetone, n-butylacetate; soluble in styrene and in other monomers.
Source: Pertti