Optical Brightening Agent CBS/FP-127
 
CBS/FP-127 is a highly purified optical brightener applicable to polymer, paint, printing ink and artificial fiber. It presents blue fluorescent light in all the polymers. 
Key words: optical brightening agent CBS-127, optical brightener CBS-127, fluorescent brightener CBS-127, optical whitening agent CBS-127, brightener CBS-127
Typical Properties:
Chemical name: 4,4-Bis [2-(2-methoxyphenyl)ethenyl]-1,1-biphenyl
Molecular weight: 418
CAS No.: 40470-68-6
C.I.: 378
Specifications:
Appearance:                          light yellow color crystal powder
Assay:                               99%min.
Bulk density:                         1.23g/cm3
Melting point:                        216-222
Ash:                                  0.3%max
Volatile content:                     0.3%max
Particle size:                        200 meshes
Max. absorption wavelength:           375nm(in ethanol)
Spectrophotography:                   max.(DMF) 364nm
Application:
PVC: 0.01-0.05%(10-50g/100kg)
Transparent PVC: 0.0001-0.001%(0.1-1g/100kg)
Polyphenyl: 0.001%(1g/100kg)
Transparent polyphenyl: 0.0001-0.001%(0.1-1g/100kg)
ABS: 0.01-0.05%(10-50g/100kg)
Package:
25kg / fiber drum with PE liner