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Optical Brightener OB

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Chemical name: 2,5-bis(5-tert-butyl-1,2-benzoxazolyl) thiophene

Molecular formula: C26H26SO2N2

Molecular weight: 430

CAS No.7128-64-5

EINECS: 230-426-4 

Properties:

Bright yellow green crystalline powder,odorless,decomposition temperature is higher than 220 DegC. It is hard to dissolve in water,and soluble in paraffin,fat,mineral oil,wax and common organic solvents.Its hue is blue light, maximum absorptive wave length is 375nm(ethyl alcohol).

  

Application:

It is used in thermoplastic plastics such as PVC,PP,PS,ABS,SAN,SB,CA,PMMA,PA,acrylic resin,polyester fiber,paint,coating or brightening for printing ink, also can be used for hydrocarbon wax,etc.

 

Packing: 

25kg fiber drums.


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