UV Absorber PR25 manufacturer CAS:7443-25-6
Sep 10th, 2022 at 20:42 Material Chemicals Redmond 61 views Reference: LYqaQ0xqenj
Location: Redmond
Price: Contact us
SPECIFICATIONS AND PHYSICAL CHARACTERISTICS
| TEST | UNIT | SPECIFICATION |
| APPEARANCE | WHITE CRYSTALLINE POWDER | |
| ASSAY | % | 99.00MIN |
| MELTING POINT | ℃ | 55.00-59.00 |
| TRANSMITTANCE | ||
| 425nm | % | 96.00MIN |
| 500nm | % | 97.00MIN |
| APHA | 30MAX |
PRODUCT FEATURES AND APPLICATIONS
* PR25 is an unique UV absorber with excellent absorbtion especially in the UVB-range
* PR25 is colorless and even in high concentration in the resin does not lead to any discoloration and will not form colored complexes with metal ions as many other UV-absorbers do
* PR25 can be used in solvent borne coatings and general industrial coatings ,particularly recommended for UV cured systems and clear coats where colour neutrality is essential.
* PR25 is recommended for use in PVC, polyesters, PC, polyamides, styrene plastics, EVA copolymers, and cellulosics, particular in Rigid PVC materials.
PACKAGE
25Kg Carton，25KG Drum，600KG/Pallet
HANDLING AND STORAGE
Keep container tightly closed and dry and storage in cool place
| Items of Analysis | Standard of Analysis | Test Results |
| Appearance | White crystal powder | Conforms |
| Melting point | 55-59℃ | 57.5-58.2℃ |
| Assay | ≥99.0% | 99.69% |
|
Transmittance （20% toluene solution） |
425nm : ≥96% 500nm : ≥97% |
98.4% 100% |
|
APHA (20% toluene solution) |
≤30 | 10 |
| Conclusion | Conforms to Factory Standard | |
Please visit our website if you have any inquiry: UV Absorber PR25.If you can't find materials from around the world, please let us know and we will research and produce them in our labs equipped with high technology.
Inno Pharmchem (Pharmaceutical Intermediates Manufacturers in China) is exclusively focusing on the manufacturing of API's Intermediates, such as UV Absorber PR25, cas:7443-25-6 , dimethyl 2-(4-methoxyphenyl)methylidenepropanedioate and so on. We have helped clients businesses by scaling up its pharmaceutical products through the development of innovative processes and optimizing the production process thus it making it cost-efficient.
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