- Chemicals structure of fuorescent brightener OB
CAS Number :52232-33-4 EC Number: Molecular Formular:C26H26N2O2S Molecular Weight:430.56 English name: BBOT C.I: 184 Specifications:
Item Indices Appearance light yellow or milk white powder Purity ≥ 99.8 % Melting point 201-202 Ash ≤ 0.1 Volatile content ≤ 0.4% Performance Features：
1.Pale green powder, tasteless, dissolvable in paraffin, fuorecent brightener OB spectrum can absorb the maximum wavelength of 375nm with the maximum transmitted length of 435nm (in ethanol).
2. Good brightening effects and weathering resistance requires a small quantityApplication：
optical brightener OB is widely used in the brightening of thermoplastics，Such as PVC, PE, PP, PS, ABS, PMMA, POM and thermosetting plastic, polyester fiber, paint, ink and coating.
Aplication Methods：
Polyvinyl chloride brightening: 0.01～0.05%
Increase radiance: 0.0001～0.001%
Polystyrene 0.0001～0.05%
ABS: 0.01～0.05%
Polyolefin colorless matrix: 0.0005～0.001%
White matrix: 0.005～0.05%
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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