UV-329
Chemical name : 2- (2'-Hydroxy-5'-tert-octylphenyl)benzotriazole
Formula : C20H25N3O
Molecular Weight : 323
CAS NO : 3147-75-9
Specification:
Appearance : white powder
Assay: 99%Min
Melting Range : 103-105 °C
Transmittance: @440nm≥ 97 %；@500nm≥ 98%
Ash: 0.1%Max
Loss on drying: 0.5%Max
Introduction : UV-329 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-329 is an effective light stabilizer for a variety of plastics and other organic substrates.
Solubility At 20 °C (g/100ml solvent)
|
Solvent |
Benzene |
styrene |
n-heptane |
Ethyl Acetate |
Ethyl Alcoho (95%) |
ethylene glycol |
Water |
|
Solubility |
39.2 |
33.0 |
7.4 |
21.8 |
0.6 |
0 |
0 |
Applications
1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight.
2.PVC:Rigid PVC : 0.2-0.5wt% based on polymer weightPlasticized PVC : 0.1-0.3wt% based on polymer weight.
3.Polyurethane : 0.2-1.0wt% based on polymer weight.
4.Polyamide : 0.2-0.5wt% based on polymer weight.
Packing: 20kg PE bag, 25kg paper carton or drum.
