Optical brightener BBU (OBA220)   
   
C.I. 220   
CAS No.: 16470-24-9   
Appearance: light yellow powder    
Water:≤5%   
Usage：   
1.Used for cotton fiber and glue fiber.2.Used in the syrup of discharge pattern of printing color.3.Used in paper pulp.4.used in the process of surface gluing.5.used in the process of coating.   
Package: 25KG fiber drums with PE liner,   
Counter of Blankophor BBU(BAY)