Benzophenone
It is a common building block in organic chemistry and is used in various applications, including sunscreen, perfumes, and as a photoinitiator.
Benzophenone, also known as diphenyl ketone or benzoylbenzene, is an organic compound with the formula (C6H5)2CO, used as a UV filter in sunscreens and other applications, and is a photosensitizing agent.
Benzophenone, also known as biphenyl ketone, is a white, crystalline organic compound with a rose-like odor, and the simplest member of the Benzophenone class. It is a common building block in organic chemistry and is used in various applications, including sunscreen, perfumes, and as a photoinitiator.
TECHNICAL SPECIFICATION::
- Appearance: White to off-white crystalline powder or flakes.
- Melting Point: 47-51 °C (lit.).
- Boiling Point: 305 °C (lit.).
- Density: 1.11 g/cm³.
- Solubility: Practically insoluble in water, but soluble in organic solvents like alcohol, acetone, ether, acetic acid, chloroform, and benzene.
- Refractive Index: 1.5893.
- Odor: Rose-like.
- Molecular Formula: C13H10O.
- Molecular Weight: 182.2179.
- CAS Registry Number: 119-61-9.
PRECAUTION::
General Precautions:
- Avoid contact: Prevent skin, eye, and clothing contact with benzophenone.
- Avoid inhalation: Do not breathe dust or fumes.
- Avoid ingestion: Do not eat, drink, or smoke while handling benzophenone.
- Prevent release: Do not allow benzophenone to enter drains, sewers, or waterways.
- Store properly: Store in a cool, dry, well-ventilated area.
- Keep away from ignition sources: Keep away from open flames, hot surfaces, and sources of ignition.
- Use spark-proof tools and explosion-proof equipment.
Personal Protective Equipment (PPE):
- Gloves: Wear appropriate protective gloves to prevent skin exposure.
- Eye protection: Wear safety goggles or face protection.
- Clothing: Wear protective clothing to prevent skin exposure.
- Respiratory protection: Use a respiratory protective device against the effects of fumes/dust/aerosol.
- Self-contained breathing apparatus: In certain situations, a self-contained breathing apparatus may be necessary.
Handling and Disposal:
- Transfer to a disposal or recovery container: Use proper personal protective equipment when transferring benzophenone to a disposal or recovery container.
- Dispose of properly: Dispose of contents/container in accordance with local/regional/national regulations.
- Incineration disposal recommended: Incineration disposal is recommended.
- Containers may still present chemical hazard when empty: Be aware that containers may still present a chemical hazard when empty.
First Aid:
- Inhalation: If inhaled, remove the person to fresh air and seek medical attention.
- Skin contact: Rinse and then wash skin with water and soap.
- Eye contact: Rinse with plenty of water (remove contact lenses if easily possible).
- Ingestion: If swallowed, seek medical attention immediately.
Other Considerations:
- May cause cancer: Benzophenone may cause cancer according to some sources.
- Harmful to aquatic life: Benzophenone is harmful to aquatic life with long-lasting effects.
- May cause damage to organs: Prolonged or repeated exposure may cause damage to organs.
- Endocrine disruption: Benzophenone and its derived chemicals may influence the endocrine system.
- Use local exhaust or breathing protection: Use local exhaust or breathing protection.
