UV Absorber UV-9 CAS 131-57-7
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Name: UV Absorber UV-9
CAS: 131-57-7
Purity: 99%min
MOQ: 1KG
Chemical Structure
Basic Info:
| CAS No: | 131-57-5 |
| Name: | UV Absorber UV-9 |
| EINECS: | 205-031-5 |
| Formula: | C14H12O3 |
| Weight: | 228.24 |
| Other Names: | Oxybenzone; UV-9; BP-3 |
| Type: | Catalysts and additives; Cosmetic raw materials |
| Shelf Life: | 3 years |
| Brand Name: | Look Chem |
| Place of Origin: | Shandong, China |
Product Introduction:
UV absorber UV-9 is a light yellow crystalline powder. It is a broad-spectrum UV absorber with the advantages of high absorption rate, non-toxicity, non-teratogenicity, great light and warmth security.
Sunscreen system
Chemical absorbers normally contain benzene rings and electron-donating groups such as amino or methoxy teams. Sunscreen molecules soak up the power of ultraviolet rays, are excited to leap to greater energy degrees, and afterwards release excess energy in the kind of weak, lengthy waves. The larger the conjugated system in the molecular framework of the absorber, the stronger the capacity to take in ultraviolet rays.
In the structure of UV absorber UV-9, the hydroxyl hydrogen on the benzene ring and the surrounding carbonyl oxygen can create an intramolecular hydrogen bond to create a chelate ring. After taking in ultraviolet light, the molecule goes through thermal vibration, the hydrogen bond is damaged, and the chelate ring is opened up. Currently, the compound remains in an unsteady high-energy state, and in the procedure of returning to the original low-energy secure state, it launches excess power. In this way, high-energy, damaging ultraviolet light ends up being low-energy, safe heat energy. At the exact same time, the carbonyl group is excited and tautomerism takes place, creating an enol structure which also consumes some energy.
Nature and Specifications:
Specification
Product Nature
Specification
| Item | Specification |
| Product Name | UV Absorber UV-9 |
| CAS No. | 131-57-7 |
| Appearance | Yellow powder |
| Shelf Life | 2 years |
| Packing | 1kg/bag,25kg/bag or as your requirements |
Product Nature
- Density: 1,3 g/cm3
- Boiling point: 150-160 °C5 mm Hg
- Melting point: 62-64 °C
- Flash point: 216°C
- Storage temp: 2-8°C
- Solubility: 95% ethanol: soluble50mg/mL, clear, colorless
Product Packaging
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UV Absorber UV-9 Uses:
UV absorber is a light stabilizer that can absorb the ultraviolet part of sunlight and fluorescent light sources without changing itself. It protects plastics from photo-oxidative degradation caused by ultraviolet radiation, thereby greatly extending the service life of the product. Plastics and other polymer materials produce auto-oxidation reactions under sunlight and fluorescence due to the action of ultraviolet rays, which leads to the degradation and deterioration of polymers, and the deterioration of appearance and mechanical properties. After adding UV absorbers, this high-energy ultraviolet light can be selectively absorbed, turning it into harmless energy and releasing or consuming it.
Different types of polymers have different wavelengths of ultraviolet rays that cause them to deteriorate. Different UV absorbers can absorb ultraviolet rays of different wavelengths. When using, UV absorbers should be selected according to the type of polymer. UV absorbers should meet the following conditions:
- Strongly absorb UV rays (especially wavelengths of 290-400nm).
- Good thermal stability, will not change due to heat even during processing, and low thermal volatility.
- Good chemical stability, no adverse reaction with material components in the product.
- Good miscibility, can be evenly dispersed in the material, no frost, no seepage.
- The absorber itself has good photochemical stability, no decomposition, no discoloration.
- Colorless, non-toxic, odorless.
- Resistant to immersion.
- Cheap and easy to obtain.
UV absorbers can be divided into the following categories according to their chemical structure: salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines and other categories.
UV absorbers are used in plastics, coatings, dyes, car windshields, cosmetics, drugs, sunscreens, etc.
UV absorber UV-9 function
UV absorber UV-9 is a light yellow or white crystalline powder, also known as sunscreen agent No. 2, BP-3, suitable for polyvinyl chloride, polyvinylidene chloride, polymethyl methacrylate, unsaturated polyester, ABS resin and cellulose resin and other plastics, with a maximum absorption wavelength range of 280-340 nanometers, and a general dosage of 0.1-1.5%. It has good thermal stability and does not decompose at 200°C. This product hardly absorbs visible light, so it is suitable for light-colored transparent products.
UV absorber UV-9 can also be used in paints and synthetic rubber. It is a broad-spectrum UV absorber with the advantages of high absorption rate, non-toxicity, non-teratogenicity, good light and heat stability, etc. UV absorber UV-9 can absorb UV-A and UV-B at the same time. It is a Class I sunscreen approved by the US FDA and is used frequently in the United States and Europe. UV-9 is widely used in sunscreen creams, frosts, honey, lotions, oils and other sunscreen cosmetics. It can also be used as an anti-discoloration agent for products that change color due to photosensitivity. In addition, because UV-9 has good compatibility with many plastics and resins, it is usually used in many fields such as PVC and unsaturated polyester.
High efficiency UV absorption: UV-9 can quickly and effectively absorb UV rays, reducing the damage of UV rays to materials.
Good thermal stability: UV absorber UV-9 can still maintain stable UV absorption performance under high temperature environment.
Excellent compatibility: UV-9 can be easily mixed with a variety of polymers without affecting the physical and chemical properties of the materials.
Environmentally friendly and safe: UV absorber UV-9 meets environmental protection standards and will not pollute the environment when used.
Related References:
- What are the characteristics of UV absorber UV-9? What is the sun protection mechanism?
- PubChem
UV Absorber UV-9 Manufacturer & Supplier
As an experienced UV Absorber UV-9 manufacturer and supplier, Look Chemical is committed to producing and selling high quality products.
We cooperate and trade with 6000+ factories around the world, and our high-quality products and excellent services make us enjoy a high reputation internationally.
As UV Absorber UV-9 supplier, Look Chemical provides supply chain solutions to partners and customers in a wide range of industries. We offer competitive pricing and quality products.
If you have a demand for this product, please contact our company’s sales staff, we will provide you with a solution in the shortest time.
Our Promise:
Achievements
Service
FAQ
Advice on Shipping
Achievements
I’m william, CEO of Look Chemical Co., Ltd. Welcome to visit our company. As China’s top Global Supply Specialist of chemicals, we have always been adhering to the principle of “service first, quality first, mutual benefit”, and we insist on Create value for customers and grow together with customers.
In the past few years , we have provided efficient and satisfactory services to more than 6000 customers and have been widely praised internationally. In the future, we will strive to provide more than 100,000 customers with professional and thoughtful services, and strive to become your first choice for worry-free purchasing chemicals in China , Hope to bring you a good cooperation experience. If you have any questions, please feel free to contact us.
Service
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Product Data:
1. Certificate Of Analysis (COA)
2. Material Safety Data Sheet (MSDS)
3. Route of synthesis (ROS)
4. Method of Aanlysis (MOA)
5. Nuclear Magnetic Resonance (NMR)
6. Packing pictures and loading video before loading
7. Free Sample
8. Factory audit
