Optical Brightener OB-1 is especially used for the molding and processing of various plastics and plastic products at high temperature. Because of its good heat resistance, light resistance and chlorine bleach resistance, it is a brightener for polyester
Solvent Yellow 14 a yellow powder, melting point 155℃. Insoluble in water, soluble in organic solvents such as ethanol, acetone, and chloroform.It is insoluble in water, but soluble in organic solvents such as ethanol, ammonia and acetone.