Fuorescent brightener OB performance
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
Item Indices Appearance light yellow or milk white powder Purity ≥ 99.8 % Melting point 201-202 Ash ≤ 0.1 Volatile content ≤ 0.4%
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 quantity
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.
Polyvinyl chloride brightening: 0.01～0.05%
Increase radiance: 0.0001～0.001%
Polyolefin colorless matrix: 0.0005～0.001%
White matrix: 0.005～0.05%