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Optical brightener Ob-1 cas 1533-45-5

Production name: Optical brightener Ob-1
Cas No.:1533-45-5
Molecular Formula:C28H18N2O2
Molecular weight: 414.45
AppearanceSlight greenish yellow powder
Content (HPLC)98~98.5%
Melting point352~358℃
Ash content≦0.5%
Volatile matter≦0.5%

Optical brightener OB-1 Usage

1. for the whitening of polyester fiber, nylon fiber and polypropylene fiber
2. for the whitening of polypropylene plastics, hard PVC, ABS, EVA, polystyrene and Makrolon
3. to be used in polyester and nylon

Optical brightener OB-1 Features

1.high whitening strength and strong fluorescence
2.wide application scope: polyester, nylon fiber and various plastics
2.fine high-temperature resistance

Optical brightener OB-1 Application method

Recommended dosage: for each 1000 kg material
1.EVA, polypropylene fiber, nylon and Makrolon: 75~200g
2.polyster fiber: 75~300g


It should be sealed and shaded to be stored in a dry, cool, well ventilated place.