Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide , 97% , 75980-60-8

Synonym(s):
(2,4,6-Trimethylbenzoyl)diphenylphosphine oxide;(Diphenylphosphoryl)(mesityl)methanone;2,4,6-Trimethylbenzoylphenyl phosphinate

CAS NO.：75980-60-8

Empirical Formula: C22H21O2P

Molecular Weight: 348.37

MDL number: MFCD00192110

EINECS: 278-355-8

PRODUCT Properties

• Melting point: 88-92 °C(lit.)
• Boiling point: 519.6±60.0 °C(Predicted)
• Density: 1.12 g/mL at 25 °C(lit.)
• vapor pressure: 0Pa at 25℃
• refractive index: n20/D 1.475(lit.)
• Flash point: >230 °F
• storage temp.: Sealed in dry,Room Temperature
• solubility: soluble in Methanol
• form: powder to crystal
• color: Light yellow to Yellow to Green
• Water Solubility: 3.4mg/L at 20℃
• λmax: 400nm(DMF)(lit.)
• Stability: Stable. Incompatible with strong oxidizing agents.
• InChIKey: VFHVQBAGLAREND-UHFFFAOYSA-N
• LogP: 3.1 at 23℃
• CAS DataBase Reference: 75980-60-8(CAS DataBase Reference)
• EPA Substance Registry System: Phosphine oxide, diphenyl(2,4,6-trimethylbenzoyl)- (75980-60-8)

Description and Uses

TPO can be used in the photo-crosslinking of PMMA composite, which can further be used as a gate insulator in organic thin film transistors (OTFTs). It can also be used in the formation of UV curable urethane-acrylate coatings. It may also be used in the photoinduced reaction for the formation of organophosphine compounds, which potentially find their usage as ligands with metal catalysts and reagents.

Safety

• Symbol(GHS): GHS07,GHS08,GHS09
• Signal word: Warning
• Hazard statements: H317-H361f-H411
• Precautionary statements: P202-P261-P273-P280-P302+P352-P308+P313
• Hazard Codes: Xn,N
• Risk Statements: 22-62-51/53
• Safety Statements: 22-24/25-61-36/37
• RIDADR: UN 3077 9 / PGIII
• WGK Germany: 2
• RTECS: SZ0395000
• HazardClass: 9
• PackingGroup: III
• HS Code: 29319090
• Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)