Low cost Optical brightener OB CAS NO.7128-64-5

 Optical Brightener OB

CAS：7128-64-5

C.I.: 184   

Character:

Appearance:        Light yellow or milk white powder

Structure Type:    Benzene and oxazole compounds

Melting Point:      201～202℃

Solubility:            Difficult to dissolve in water, but soluble in paraffin, mineral oils and ordinary organic solvents.

Usage:

This product can be used for whitening thermoplastic plastics, and can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white luster.

Direction for usage:

Making the optical brightener OB thoroughly disperse in all those plastic particles, with the weight of 0.01～0.05% plastic weight. Counter product: Uvitex OB

Specification:

Appearance:    Light yellow or milk white powder

      Purity:                    ≥99%

Melting point:         201～202℃

Volatiles：              Max 0.2%

Sulfonated Ash：     Max 20pm

Impurity：              Max 20pm

Solubility:               1g OB entirely dissolve in 100m IDMA, clear and transparent.

Packaging and storage:

Packing in 20KG,25KG cardboard drum,1KG iron drum, stored in dry shade place.