Optical brightener OB( OBA 184)
CAS No. 7128-64-5
Appearance: Light yellow or milk white powder
Purity: 99% min
Melting point: 196-203â??
Usage: A good whitening agent for PVC,PS,PE,PP
ABS, thermolastic plastics, Acetate fiber, paint, coating and printing ink, etc
Package: 25KG fiber drums with PE liner
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