Brand:-
Model:-
MOQ:-0 -
Tinuvin 328 Lowilite 28 Benzotriazole UV Absorber , CAS No. 25973 - 55 – 1
Quick Detail :
UV 328 is a UV absorber of the hydroxyphenylbenzotriazole class , which imparts out - standing light stability to plastics and other organic substrates .
Description :
- Name : UV328
- Chemical name : 2 - ( 2H - Benzotriazol - 2 - yl ) - 4 , 6 - ditertpentylphenol
- CAS No. : 25973 - 55 - 1
UV328 exhibits strong absorbance in the 300 - 400nm region and minimum absorption in the visible region ( 40nm ) of the spectrum . The absorption maximum area is at 306nm and 347nm in chloroform solution .
Applications :
UV 328’s use level ranged between 0.1 and 1.0 % depending on the substrate and performance requirements of the final application . The product can be used alone or in the combination of other additives . It could particularly get a good performance in the combination of hindered amine light stabilizers such as LS 770 , LS 622 , LS 791 and so on .
Specifications :
| Appearance | Off-white Powder |
| Assay (GC) | 99% min |
| Melting Point | 80-82 |
| Volatile | 0.3% max |
| Ash | 0.1% max |
| Transmittance | 460nm 97.5% min |
| 500nm 98.0% min |
Competitive Advantage :
TINUVIN 328 features strong UV absorption , low initial color , excel compatibility in a wide range of substrates , good solubility in plasticizers and monomers and moderately low volatility .
Hongkun is one of the important manufacturers of UV328 in China with the same quality of BASF , and the application effect has been proved by many customers .
