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CAS:7443-25-6
UV Absorber PR25 CAS:7443-25-6
Synonyms:
UV Absorber PR25
dimethyl (p-methoxybenzylidene)malonate
 
Molecular Formula: C13H14O5
Molecular Weight: 250.24700

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
TGA:   208℃(10%)
 
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
 
 
Our company is a professional supplier of functional material additives. Our products include antioxidants, ultraviolet absorbers, light stabilizers, photoinitiators, heat stabilizers, nucleating agents, flame retardants, polyurethane chain extenders, nano light absorbing materials, antibacterial materials, functional masterbatches, colorants etc. After years of steadfast industry accumulation and technological innovation, a relatively complete additive industry chain has been formed in the rubber and plastic industry, ink industry, coating industry, textile printing and dyeing industry, functional resin and other industries. Significant achievements have been made in the field of additives.
 


UNICHEMIST manufacture & supply UV Absorber PR25 CAS:7443-25-6,if you want to buy it,please drop your inquiry to [email protected] ,we will reply you asap.If you have any custom synthesis or contract manufacturing compounds, please also feel free to contact us.



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