OPTICAL BRIGHTENER PF 

Typical Properties

Chemical name:  

1,2-bis (5-methyl-2-benzazolyl) -ethylene

Structural formula:

Molecular formula:C18H14N2O2

Molecular weight: 290
CAS No.: 12224-12-3

C.I.: 135

Specifications: 
Appearance:  light yellow powder
Purity:  99%min                               
Melting point:  186-188 ℃   

Fineness:Over 100 Mesh                                        

Maximum UV Absorption Spectrum: 363nm

Performance and characteristics:

1.Good fluorescence intensity and high whiteness.  

2. Has good thermal stability and does not decompose at high temperature above 250 ℃

3. Good sun resistance, not easy to yellowing.

4. Good dispersion, easy to mix with plastics.

Application :
It is used for brightening polyvinyl chloride, polystyrene, polyacrylate, polyester film, high and low pressure polyethylene, ABS, plexiglass, business card and high-grade paper..

Dosage:
PF whitening agent 30-100 g was added to every 100 kg material.

Safety and stock:
Keeping in stock as ordinary chemicals. Wear protective goggles and gloves whole opening the package, should avoid the direct contact with skin and eyes.

Packing:
25kg / fiber drum with PE liner