- Chemicals structure of Optical brightener OB-1
CAS Number :1533-45-5 EC Number:216-245-3 Molecular Formular:C28H18N2O2 Molecular Weight:414.4547 English name: Fluorescent Brightener 393 C.I: 393
Item Index Appearance bright yellow crystalline powder Purity â‰¥99% Melting point 357-359Â°C Volatile conten â‰¤0.50% Ash content â‰¤0.10%
1. High brightening intensity and strong fluorescence.
2. Widely usage in brightening polyester, nylon fiber and all kinds of plastics.
3. Carries good resistance to high temperature.
1. Goes for the brightening of such chemical fibers of polyester, nylon and polyprolylene.
2. Goes for the whitening and brightening of polypropylene plastic, hard PVC, ABS, EVA, polystyrene, polycarbonate, etc.
3. Applicable to be added in the general polymerizations of polyester and nylon.
Recommended quantity: Optical brightener OB-1 in every 1000kg raw material:
1. 75ï½ž200g in EVA, polyprolylene, nylon, polycarbonate, and so on.
2.75ï½ž300g in terylene fiber.
WSD CHEMICAL LIMITED
WSD chemical established in 2000,we are professional engaged in the research, development, production, sale and service of PVC additives. We are located in Shengzhou City,Zhejiang,China, near to Shanghai, Hangzhou ,Ningbo, YIwu .and have convenient transportation access.
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