Appearance: Light yellow or milk white powder
Shade: Similar to standard
Melting point: 201-205℃
Solubility: Hardly soluble in water, but soluble in paraffin, mineral oils and ordinary organic solvents.
1.Optical brightener OB is a kind of benzoxazole compound,
2. It is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents.
A good optical brightener agent for PVC, PS, PE, PP, ABS, ther-moplastic plastics,
Acetate fiber, paint, coating and printing ink, etc.
Packed in 25kgs Fiber Drum
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