Benzophenone, C6H5COC6H5, CAS No.119-61-9
| Chemical Name | Benzophenone |
| CAS Number | 119-61-9 |
| Molecular Formula | C6H5COC6H5 |
| Purity | >99%, 99%, and 98% |
| Packaging Details | 25 kg Bag, 50 kg Bag |
| Synonyms | Diphenylmethanone, Diphenyl ketone, Benzoylbenzene |
Chemical Identifiers
| Chemical Name | Benzophenone |
| CAS Number | 119-61-9 |
| Molecular Formula | C6H5COC6H5 |
| Synonyms | Diphenylmethanone, Diphenyl ketone, Benzoylbenzene |
| EC Number | 204-337-6 |
| IUPAC Name | Diphenylmethanone |
General Details
| Purity | >99%, 99%, and 98% |
| Packaging Details | 25 kg Bag, 50 kg Bag |
Chemical Properties
| Molecular Weight (g/mol) | 182.22 g/mol |
| Density | 1.11 g/cm³ |
| Melting Point | 48.5°C |
| Boiling Point | 305.4°C |
| Vapor pressure, kPa | 0.133 |
| Refractive index | 1.6077 |
| Flash Point | 110°C |
| Surface tension | 0.042 N/m |
| Vapor density (air=1) | 4.21 |
| Critical Temperature | 457°C |
| Critical Pressure | 177 MPa |
| Dipole Moment | 3.14 D |
| Dielectric Constant | 11.4 |
| Heat of Combustion | -6292 kJ/mol |
| Heat Capacity | 0.224 KJ/mol |
| Heat of Formation | 58.9 KJ/mol |
Physical Properties
| Physical Form | Solid, Liquid, Dry Powder |
| Color | White, Light Yellow |
| Odor | Rose Like |
| Shelf Life | 3 Years |
- Sweet-smelling organic compound
- Used in personal care & consumer products
- Used in household product & consumer goods
- Used as an ultraviolet curing agent
- Used as a flavour ingredient
- A fragrance enhancer and an additive for plastics
- Used as a photoinitiator for inks and varnishes
- Used in printing to improve the rheological property
| Packaging Details | Price | |
| 100 ml Bottle | Rs 120 | |
| 500 ml Bottle | Rs 450 | |
| 1 litre Bottle | Rs 900 | |
| 25 kg Drum | Rs 22,500 | |
| 50 kg Drum | Rs 45,000 | |
| 180 kg Drum | Industrial Grade | Rs 171,000 |
Production of Benzophenone
Benzophenone can be obtained by Friedel-Crafts acylation of benzoyl chloride with an excess of benzene in the presence of anhydrous aluminium chloride. Benzophenone is also produced by atmospheric oxidation of diphenylmethane in the presence of metal catalysts, such as copper naphthenate.
ASTM Testing Standard
• D789 Test Methods for Determination of Solution Viscosities of Polyamide (PA)
• D803 Test Methods for Testing Tall Oil
• D890 Test Method for Water in Liquid Pine Chemicals
• D1123 Test Methods for Water in Engine Coolant Concentrate by the Karl Fischer Reagent Method
• D1152 Specification for Methanol (Methyl Alcohol)
• D1193 Specification for Reagent Water
• D4928 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration
• D5460 Test Method for Rubber Compounding MaterialsWater in Rubber Additives
• D5530 Test Method for Total Moisture of Hazardous Waste Fuel by Karl Fischer Titrimetry
• D6304 Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
• E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
• E1064 Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration
Storage and Handling
• Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
• Conditions for safe storage: Keep container tightly closed in a dry and well-ventilated place.
Incompatible Materials
Strong oxidizing agents and strong reducing agents.
Fire fighting
• Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
• Special protective equipment for firefighters Wear self contained breathing apparatus for fire fighting if necessary.
• Hazardous combustion products Hazardous decomposition products formed under fire conditions. - Carbon oxides
First Aid
• In case of skin contact Wash off with soap and plenty of water. Consult a physician.
• In case of eye contact Flush eyes with water as a precaution.
Hazard Statement
• May be harmful in contact with skin.
• Suspected of causing cancer.
• Very toxic to aquatic life with long lasting effects
Precaution
• Avoid release to the environment.
• Use personal protective equipment as required.
• Dispose of contents/ container to an approved waste disposal plant
Uses
Benzophenone can be used as a photo initiator in UV-curing applications such as inks, imaging, and clear coatings in the printing industry. Benzophenone prevents ultraviolet (UV) light from damaging scents and colors in products such as perfumes and soaps. Benzophenone can also be added to plastic packaging as a UV blocker to prevent photo-degradation of the packaging polymers or its contents. Its use allows manufacturers to package the product in clear glass or plastic, without it, opaque or dark packaging would be required.