Benzophenone 3, C14H12O3, CAS No.131-57-7
| Chemical Name | Benzophenone 3 |
| CAS Number | 131-57-7 |
| Molecular Formula | C14H12O3 |
| Purity | >99%, 99%, and 98% |
| Packaging Details | 25 kg Bag, 50 kg Bag |
| Synonyms | Oxybenzone, Benzophenone-3, 2-Hydroxy-4-methoxybenzophenone |
Chemical Identifiers
| Chemical Name | Benzophenone 3 |
| CAS Number | 131-57-7 |
| Molecular Formula | C14H12O3 |
| Synonyms | Oxybenzone, Benzophenone-3, 2-Hydroxy-4-methoxybenzophenone |
| EC Number | 205-031-5 |
| IUPAC Name | (2-Hydroxy-4-methoxyphenyl)-phenylmethanone |
General Details
| Purity | >99%, 99%, and 98% |
| Packaging Details | 25 kg Bag, 50 kg Bag |
Chemical Properties
| Molecular Weight (g/mol) | 228.25 g/mol |
| Density | 1.20 g/cm³ |
| Melting Point | 65°C |
| Boiling Point | 227°C |
| Solubility in water | 11.13 g/L |
| Vapor pressure, kPa | 0.13 |
| Acidity (pKa) | 7.6 |
| Refractive index | 1.595 |
| Flash Point | 111°C |
| Auto Ignition Temperature | 565.5°C |
| Surface tension | 32.58 mN/m |
| Critical Temperature | 374°C |
| Critical Pressure | 5.001 MPa |
| Heat of Fusion | -186.8 kJ/mol |
| Heat of Vaporization | 38.77 kJ/mol |
| Heat of Combustion | -2810 kJ/mol |
Physical Properties
| Physical Form | Solid |
| Color | Pale Yellow |
| Odor | Acrid, chlorine-like |
| Shelf Life | 2 Years |
- Excellent Wetting Agent For Pigments
- Can Be Used As A Drying Catalyst
- Absorbs & Scatters The Sun’s Ultraviolet Rays
- Natural Chemical Found In Various Flowering Plants
- Used As Sunscreen, Conditioners & Cosmetics
- Used In Plastic Products To Block UV Rays
- Oxybenzone Can Also Be Used As A Photostabilizer
- Most Widely Used Organic UVA Filters
| Packaging Details | Price |
| 25 kg Drum | Rs 20,750 |
| 50 kg Drum | Rs 40,500 |
| 180 kg Drum | Rs 87,800 |
Production of Benzophenone 3
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
• D1152 Specification for Methanol (Methyl Alcohol)
• D1193 Specification for Reagent Water
• D1348 Test Methods for Moisture in Cellulose
• D1568 Test Methods for Sampling and Chemical Analysis of Alkylbenzene Sulfonates
• D1631 Test Method for Water in Phenol and Related Materials by the Iodine Reagent Method
• D2072 Test Method for Water in Fatty Nitrogen Compounds
• D2575 Methods of Testing Polymerized Fatty Acids
• D3277 Test Methods for Moisture Content of Oil-Impregnated Cellulosic Insulation
• D3401 Test Methods for Water in Halogenated Organic Solvents and Their Admixtures
• D5460 Test Method for Rubber Compounding MaterialsWater in Rubber Additives
• 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
Incompatible Materials
Oxidising agents, highly alkaline & acidic materials
Fire Fighting
• Recommended extinguishing methods Extinguisher powder or CO2. In case of more serious fires, also alcohol-resistant foam and water spray. Do not use a direct stream of water to extinguish
• Advice for firefighters Use water to cool tanks, cisterns, or containers close to the heat source or fire. Take wind direction into account. Prevent the products used to fight the fire from going into drains, sewers, or waterways
First Aid
• Skin contact - Remove contaminated clothing. Wash skin vigorously with water and soap or a suitable skin cleaner. NEVER use solvents or thinners.
• Ingestion - If accidentally ingested, seek immediate medical attention. Keep calm. NEVER induce vomiting.
Hazard Statement
• Causes skin irritation.
• Causes serious eye irritation.
• May cause respiratory irritation
Precaution
• If on skin: Wash with plenty of water.
• If inhaled: Remove person to fresh air and keep comfortable for breathing.
• If skin irritation occurs: Get medical advice/attention.
• If eye irritation persists: Get medical advice/attention.
• Take off contaminated clothing and wash it before reuse.
• Store in a well-ventilated place. Keep container tightly closed
• If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
Uses
Oxybenzone is used in plastics as an ultraviolet light absorber and stabilizer. It is used, along with other benzophenones, in sunscreens, hair sprays, and cosmetics because they help prevent potential damage from sunlight exposure. It is also found, in concentrations up to 1%, in nail polishes. Oxybenzone can also be used as a photostabilizer for synthetic resins. Benzophenones can leach from food packaging, and are widely used as photo-initiators to activate a chemical that dries ink faster.