Benzophenone
CAS 119-61-9
EC 204-337-6
Formula C13H10O
MW 182.22 g/mol
UV Absorbers & Stabilizers Printing & PackagingPlastics & PolymersCoatings, Adhesives, Sealants & ElastomersTextile, Leather & PaperAutomotive Antioxidant & StabilizerCross-linking & CuringUV Protection & StabilizationCatalysis
Description
Benzophenone (CAS 119-61-9, EC 204-337-6, C13H10O) is an aromatic ketone commercially known as phenyl ketone or benzoylbenzene, with FEMA designation 2134. It carries no assigned E-code and is classified under HS code 29143900 within the polymers and resins category.
In UV-curable coatings and printing inks, benzophenone acts as a Type II photoinitiator, absorbing UV radiation and abstracting hydrogen from co-initiators to generate radicals that trigger polymer crosslinking. In plastics and adhesive formulations, it functions as a UV absorber and heat stabilizer, intercepting photon energy before it degrades the polymer backbone.
Benzophenone is supplied as crystalline powder or flakes and is available in technical and high-purity grades. It is subject to REACH registration requirements within the EU. Procurement teams should verify current SDS documentation and confirm grade suitability against application-specific regulatory frameworks before ordering.
In UV-curable coatings and printing inks, benzophenone acts as a Type II photoinitiator, absorbing UV radiation and abstracting hydrogen from co-initiators to generate radicals that trigger polymer crosslinking. In plastics and adhesive formulations, it functions as a UV absorber and heat stabilizer, intercepting photon energy before it degrades the polymer backbone.
Benzophenone is supplied as crystalline powder or flakes and is available in technical and high-purity grades. It is subject to REACH registration requirements within the EU. Procurement teams should verify current SDS documentation and confirm grade suitability against application-specific regulatory frameworks before ordering.
Physical Properties
| Melting Point | 48.5 °C |
| Boiling Point | 305.4 °C @ Press: 760 Torr |
| Density | 1.1108 g/cm³ @ Temp: 18 °C |
| Flash Point | >230 °F |
| Appearance | Benzophenone is a combustible, white, crystalline solid with a rose-like odor |
| Color | White to off-white |
| Odor | Characteristic. |
| Form | Crystalline Powder or Flakes |
| Water Solubility | insoluble (<0.1 g/100 mL at 25 ºC) |
| Vapor Pressure | 1 mm Hg ( 108 °C) |
| Refractive Index | 1.5893 |
| Log P | 3.18 at 25℃ |
Safety & Handling (Learn More)
Warning GHS08 GHS09 GHS07
H
H302H320H350H351H373H400H401H410H411
P
P203P260P264P270P273P280P318P319P330P391P405P501P264+P265P301+P317P337+P317P305+P351+P338
Trade & Regulatory
| HS Code | 29143900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 2 |
Other Names
Diphenylmethanonephenyl ketonebenzopheneonebenzoylbenzeneBPNα-Oxoditane
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Raw Materials
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