Fluorescent Brightener OB-1

Appearance: Yellow/green powder
Molecular weight: 414.4
Melting point: 356 ℃～ 360 ℃
Purity: ≥98.5%
Fineness: ≧ 200 mesh
Volatile content: ≦ 0.5%
Ash content: ≦ 0.5%
Product Information
Product NameOptical Brightener OB-1
Chemical Name2.2’-(4.4’-diphenol vinyl) dibenzoxazol
CAS No.1533-45-5
C.I. No.393
Structural Formula

Molecular FormulaC28H18N2O2
Molecular Weight414
Technical IndexAppearance：Yellowish/greenish powderMolecular weight: 414.4 Melting Point:356℃～360℃ Purity: ≥98.5% Fineness:≧200 mesh Volatile content: ≦0.5%  Ash content:≦0.5%
UsesMainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization.For whitening of polyester and nylon; also used in ABS, PS,PVC, HIPS, PA, PC, PP, PE,PET,EVA, PVC, etc. Rate of use: (per 1000kg of substrate) Polyester: 75-300g  EVA, PP, nylon: 75-200g
Package25kg per fiber drum（can be customized）


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