Chemicals

Optical Brightening Agent OB-1

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Main composition

Chemical name:2,2'-(1,2-Ethenediyldi-4, 1-phenylene)bisbenzoxazole

C.I.No:393
CAS:1533-45-5

Formula:C28H18N2O2

Molecular Weight:414.4

Technical index

Appearance:Green- yellow powder

Melting Point:359℃

Purity:≥98.0%

Volatile:0.5%

Performance and Features

1.High whiteness and strong fluorescence.

2.It has wide adaptability and is widely used in whitening of polyester, nylon fiber and various plastics.

3.Excellent heat resistance and light fastness.

Recommended dosage: the dosage of OB-1 against 1000kg material by weight.

1.For EVA, polypropylene, nylon and polycarbonate, add 75-200g.

2.For polyester fiber, add 75-300g.

Packaging and Storage

Packaging with 25kg bag, 25kg carton, 500kg bag or according to customer's request.

Shelf-life:2 years, store under the room temperature. Avoid strong sunlight and wet environment.

Optical Brightening Agent OB-1

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