Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Benzophenone
1. Basic Information
Name: Benzophenone
Alias: Diphenylmethanone
CAS No.: 119-61-9
Molecular Formula: C13H10O
Molecular Weight: 182.22
2. Physical and Chemical Properties
Physical Properties
- Appearance: White crystalline flakes or powder
- Odor: Mild sweet aromatic odor
- Solubility: Soluble in CH3OH, C2H5OH, acetone, CHCl3, ether; slightly soluble in hot H2O; insoluble in cold water
- Melting Point: 48–50 °C
- Boiling Point: 305 °C
- Hygroscopicity: Non-hygroscopic under normal humidity
- Aqueous Characteristic: Insoluble in water, neutral organic compound
Chemical Properties
- Molecular Structure: Two benzene rings linked by a carbonyl group (C=O)
- Carbonyl Reactivity: Undergoes reduction, addition, condensation and photochemical rearrangement reactions
- Photochemical Property: Excellent UV absorption capacity, widely used as UV absorber and photoinitiator
- Thermal Stability: Stable below 120 °C; volatilizes without obvious decomposition at boiling point
- Photostability: Absorbs ultraviolet light, self-stable under long-term light exposure
- Compatibility: Compatible with most resins, oils and organic solvents; incompatible with strong oxidants and concentrated strong alkali
3. Main Application Fields
1. UV Absorber & Photoinitiator (Core Application)
- Light stabilizer for plastic, coating, ink to prevent yellowing and aging
- Free radical photoinitiator for UV curing paint, adhesive and printing ink
2. Fragrance Fixative Raw Material
Fixative in daily flavors, improves fragrance retention of perfume, cream and shampoo
3. Pharmaceutical Synthetic Intermediate
Key building block for synthesizing antihistamines, anti-inflammatory drugs and heterocyclic APIs
4. Organic Synthesis & Analytical Reagent
Chemical raw material for fine organic synthesis; HPLC reference standard
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 119-61-9 |
| Molecular Formula | C13H10O |
| Appearance | White crystalline flakes |
| GC Purity | Synthetic Grade ≥99.0% |
| Water Content (KF) | ≤0.10% |
| Melting Range | 48–50 °C |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb1) | Cosmetic Grade ≤10 ppm |
| Packaging | 25kg PE lined fiber drum / amber plastic bag |
| Storage Condition | Hermetically sealed in cool dark warehouse below 25 °C; isolate from strong oxidants |
| Transportation Requirement | Low volatility aromatic ketone solid, ordinary sealed packaging |
| Shelf Life | 36 months under intact sealed packaging |
Safety Warning
Mild irritant organic solid. Dust irritates eyes and respiratory tract; long-term skin contact may cause slight allergic reaction. Wear dust mask, chemical-resistant gloves and protective goggles during operation with ventilation. Avoid high-temperature heating to prevent volatile vapor inhalation. Waste liquid needs organic solvent recovery treatment; solid waste belongs to general organic hazardous waste for centralized disposal.
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