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Optical Brightening Agent OB
Typical Properties:
Chemical name:2,5'-Bis[2-(5-tert-buty l-2 benzoxazoly)thiophene
Molecular weight: 430.56
CAS No.: 7128-64-5
C.I.: 184
Empirical Formula:C26H26N2O2N2
Melting Point:201-202℃
Appearance: Greenish yellow powder
Operating Temperature: Within 220℃
Application:
Mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, coating etc. With the dosage:0.01-0.05%.
Packing:
25kg / fiber drum with PE liner.
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