Optical brightener OB (C.I.184)
CAS NO: 7128-64-5

Appearance: light yellow or milk white powder
Purity: 99%Min
Melting point: 201-202°C
Solubility: hardly soluble in water,but soluble in paraffin, mineral oils and ordinary organic solvents.
Packaging: Packaged in cardboard drums,20kg or 25kg each
Properties:
1.Small consumption, strong whitening intensity, small consumption can bring a very good whitening result.
2. Wide service behavior, suitable for various kinds of plastic whitening.
3. Have a good compatibility with plastic , good resistance to high temperature and excellent light fastness and weathering resistance.
Uses:
1. Especially suitable for whitening plastics, such as the polyolefin, polyamide, polyacrylonitrile and so on.
2. Widely used in the film, injection molding and extrusion molding material, is suitable for all plastic processing.
Method of Application: Recommend consumption: Put about 20g OB brightener into every 100kg materiel, concrete consumption is adjusted according to compounding formula. 

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CERTIFICATE OF ANALYSIS