Optical brightener OB(184#

TECHNICAL DATA SHEET

FLUORECENT BRIGHTENER OB

C.I.184 CAS:7128-64-5

STUCTURE:

MOLECULAR FORMULA:C₂₆H₂₆N₂O₂S

MOLECULAR WEIGHT:430.2 (As International relative Atom Mass 1997)

MAX UV ABSORPTION WAVELENGTH:375 nm(ethanol)

MAX OPTICAL EMITTING WAVELENGTH:435 nm

EXECUTIVE STANDARD:HG/T3703-2002

SPECIFICATIONS

PROPERTYOptical Brightener OB is a kind of benzoxazole compound. It is odorless, hard to dissolve in water, soluble in paraffin, fat,mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic platics,PVC,PS,PE,PP,ABS,Acetate fiber, paint, coating, printing ink,etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze. It can also be used as special marks in indentify anti-fake material if used in printing ink.

APPLICATIONThoroughly dispersed in all those polymers. If any ultra violet spectrum absorption agent is used in the polymers, the optimal dosage of optical brightener OB should be adjusted.

PROCEDURPVC white 0.01-0.05%(10-50g) transparent 0.0001-0.001%(0.1-1g) PS white 0.001%(about 1g) transparent 0.0001-0.001%(0.1-1g) ABS natural color 0.01-0.05%(10-50g) white 0.01-0.05%(10-50g) PE/PP colorless 0.0005-0.001%(0.5-1g) white 0.005-0.05%(5-50g) other plastic are like above

PACKAGPacked in cardboard bucket or cardboard box after being firstly packed in plastic bag.Net weight per bucket is 20kg or 25kg.

TRANSPORTATIONShould avoid sunlight and crash

STORAGEShould be stored in cool,dry and ventilate place, and storage time should not exceed 2 years