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Products Description
Benzophenone is a white crystalline powder with a slight aromatic smell, which is widely used in many industrial fields. It has good UV absorption properties and can be used as a UV absorber in plastics, rubber, coatings, inks and cosmetics to help improve the light stability and weather resistance of materials.
1. UV absorption function
The carbonyl group in the benzophenone molecule forms a conjugated structure with two benzene rings, which enables it to effectively absorb ultraviolet rays in the 200–350nm band, especially in the UV-A and UV-B regions. This property makes it play an important role in UV protection, helping to prevent materials or human skin from being damaged by ultraviolet radiation. In industrial applications, benzophenone is often used in plastics, rubbers and optical materials to improve their anti-photoaging properties. At the same time, its derivatives are also widely used in cosmetic sunscreens, such as BP-1 and BP-3, to slow down skin photoaging.
2. Light stabilizer function
By absorbing ultraviolet rays in the external environment and releasing them in the form of heat energy, benzophenone can effectively slow down the degradation reaction of polymer materials caused by light, preventing problems such as color change and mechanical property degradation. This property is particularly important in plastic products (such as PE, PP, PVC), especially materials used in outdoor environments.
3. Photosensitivity function
Benzophenone has a certain photosensitivity and can be excited to a triplet state under ultraviolet irradiation, thereby promoting electron transfer or free radical reactions. This property makes it an important component of the photoinitiator system, especially suitable for UV curing process. It is often used in UV light-curing inks, adhesives, coatings, photosensitive resins and 3D printing materials as a photosensitive additive to improve the curing speed and reaction efficiency of the system.
4. Function of organic synthesis intermediates
As a simple and reactive aromatic ketone, benzophenone can participate in a variety of organic reactions including Friedel–Crafts acylation, reduction, condensation, etc., and becomes an important intermediate for the synthesis of many types of compounds. In the pharmaceutical field, its derivatives can be used to synthesize antibacterial, sedative and other types of drug active molecules; at the same time, it also has high practical value in the fine chemical fields such as fragrances, dyes, and photosensitive materials.
4 Benzophenone test report
|
Analysis Items |
Specification |
Result |
|
Assay,(%) |
≥99.50(HPLC) |
99.70 |
|
Appearance |
Off-white powder |
Off-white powder |
|
Melting Range |
160℃ |
166.3℃ |
|
PH,1% Aqueous solution @25C |
1.2-2.2 |
1.63 |
|
Gardner color 10% Aqueous soln |
≤4.0 |
2.0 |
|
Loss on drying,(%) |
2.0 |
0.8 |
|
Turbidity in Water |
≤16.0NTU |
3.5 |
|
UV absorbance E1%cm in water at λ max.285 |
460min |
477 |
|
UV absorbance E1%cm in water at λ max.325 |
290min |
294 |
|
K-value@285nm,L/g-cm |
46.0-50.0 |
47.7 |
|
Heavy Metals as Pb,(mg/kg) |
≤20 |
PASS |
|
Conclusion: Conform to Specification |
||
Quality Certification
Welcome To Contact Us
For thirteen years,ZHENYIBIO has been focusing on cosmetic ingredients. As a professional manufacturer of 4 Benzophenone, we continuously improve production processes and strengthen cooperative services.
Phone Number
(86)-0153 0920 6328
alexxue@zhenyibio.com
FAQ
Q: 1. What is Benzophenone used for?
A: Benzophenone is primarily used as a UV absorber and light stabilizer in plastics, coatings, rubber, and cosmetics. It is also widely applied as a photosensitizer in UV-curable systems and as an intermediate in the synthesis of pharmaceuticals, fragrances, and dyes.
Q: 2. Is your Benzophenone suitable for cosmetic or pharmaceutical applications?
A: Yes, we offer high-purity Benzophenone that meets cosmetic and pharmaceutical standards. We can provide COA (Certificate of Analysis) and MSDS upon request. For cosmetics, derivatives like BP-3 are commonly used in sunscreen formulations.
Q: 3. Do you have quality certifications for Benzophenone?
A: Yes, our factory is ISO 9001 certified. Our Benzophenone complies with REACH and RoHS regulations, and for special applications, we can provide USP, EP, or customized testing reports based on client needs.
Q: 4. Can I buy Benzophenone in bulk directly from the factory?
A: Absolutely. As a manufacturer and supplier, we provide bulk quantities at competitive factory prices. We support OEM and custom packaging services to meet your procurement requirements.
Q: 5. What is the minimum order quantity (MOQ) for Benzophenone?
A: Our standard MOQ is 25 kg (1 drum), but we offer flexibility for trial orders or R&D purposes. Please contact us for detailed pricing based on quantity and delivery location.
Q: 6. How do you ensure consistent quality as a Benzophenone manufacturer?
A: We maintain strict quality control throughout production, including raw material inspection, in-process monitoring, and final QC testing. Our in-house lab is equipped with HPLC, GC, and UV-Vis spectrometers to ensure each batch meets specification.
Q: 7. Can you support international shipping and documentation?
A: Yes, we are an experienced global supplier with regular exports to Europe, the US, India, Southeast Asia, and more. We provide full export documentation, including COA, MSDS, packing list, invoice, and custom clearance support if required.
Q: 8. What are the storage and shelf life requirements of Benzophenone?
A: Benzophenone should be stored in a cool, dry, and ventilated area, away from direct sunlight and strong oxidizers. When properly stored in sealed packaging, the typical shelf life is 2 years.
Q: 9. What are your service advantages as a Benzophenone factory and supplier?
A: We offer stable supply, competitive price, fast delivery, and technical support from our experienced R&D and sales teams. As a direct manufacturer, we ensure shorter lead times and responsive customer service.
Q: 10. How can I get a sample or quotation for Benzophenone?
A: You can contact us directly through our website or email to request a free sample or get the latest price. Please provide your company name, application purpose, and estimated quantity so we can offer the most suitable solution.
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