CAS No.

5089-22-5

EINECS No.

225-803-5

Other Name

1,4-bis(benziazolyl-2-yl-)naphth-alene

Molecular formula:

C24H14N2O2

Appearance

Yellowish green crystalline powder

Purity

≥99.9%

Melting point

210~212°C

Volatile:

<0.5%

Package

20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.

Applications:
Mostly used in the brightening the products of synthetic fiber and plastics, it is widely used in plastic film, material of lamination moulding and injection moulding as well as preferable brightening efficiency on polyolefin, PVC, PVC foaming, TPR, EVA and PU foaming together with coating, natural lacquer, etc. It also has specially good effect on foaming plastics, especially EVA, PE foaming.

Dosage:

   Optical brightener KCB is commonly used in the amount of 0.01-0.03%, that is, each 100kg of the materials, the Optical brightener KCB takes 10g-30g or can be adjusted according to the requirements of the product or test.

Storage: To avoid light, can be stored in cool and dry place for 24 months.