Optical Brightening Agent OB

We are Optical Brightening Agent OB CAS:7128-64-5 manufacturer and supplier in China, Pls send inquiry of to info@nbinno.com of visit www.nbinno.com our official website should you have any interests

Optical Brightening Agent OB
 
Main composition
Chemical name:2,5-bis(5-tert-butyl benzoxazolyl-2'-)thiophene
C.I.No:184
CAS:7128-64-5
Formula:C26H26N2O2S
Molecular Weight:430
 
Technical index  
Appearance:slight yellow or milk white powder
Melting Point:200~202℃
Purity:≥99.0%
 
Performance and Features  
1.Tasteless, soluble in alkane, fat, mineral oil, paraffin and most organic solvents. The maximum absorption wavelength is 375nm (in ethanol) and the maximum emission wavelength is 435nm (in ethanol);
2.It has good whitening performance and thermal stability, less dosage and wide applications.
Mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene (PP), polyester fiber, paint and ink, etc.
 
The dosage against raw materials by weight:
0.01~0.05% for PVC to improve whiteness
0.0001~0.001% for PVC to improve brightness
0.0001~0.001% for polystyrene
0.01~0.05% for ABS
0.0005~0.001% for colorless polyolefin  
0.005~0.05% for white polyolefin
 
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


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