optical brightening agent
USD $1 - $50 /Kilogram
Min.Order:100 Kilograms
Tianjin Zhaobo Chemical Co., Ltd.
erformance:
Optical Brightener are added to many materials to reduce yellowing, improve whiteness, and to enhance the brightness of a product. OB-1 is used widely in the plastic market. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers.
Typical Properties:
Chemical name: 2,2-(1,2-Ethenediyldi-4, 1-phenylene) bisbenzoxazole
Molecular weight: 414.4
CAS No.: 1533-45-5
C.I.: 393
Specifications:
Ash %: 0.3max
Empirical Formula: C28H18N2O2
Melting Point(DTA),C: 353-359
Appearance: Yellowish Green Powder
Odor: Free of odor
Volatile Content %: 0.3max
Assay %: 99min
Particle Size: 200 meshes