sell optical brightener

Description

optical brightener
1.high quality
2.ready stock
3.competitive price
4.quick delivery
5.perfect package

  Optical brightener
     Appearance: Bright yellow green crystal powder.
      Melting point: **9 ***2°C
      Assay: *9.5% min
      Volatile Content: 0.3% max
      Ash: 0.3% max
      Max wavelength absorption spectrum: **5nm (in ethanol)
      Fineness: Through **0 meshes.  Uses:  
      It can be used in the whitening of thermoplastic plastics, PVC, polystyrene, polyethylene, polypropylene, ABS, cellulose acetate, paint, coating, printing inks, etc. Brightener OB can be used in whitening of polymer at every processing stage, bring products brilliant blue white lustre. The foreign similar products have: Uvitex OB.
Usage: Add 0.***0.*5% brightener OB into the plastic, completely mix with plastic granular material, then contour machining.