Product Name: OPTICAL BRIGHTENER OB
Chemical Name: 2,5-bis-(5-ter-butyl-benzoxazolyl-)thiophene
Formula: C26H26N2O2SH9C4
CAS No.: 7128-64-5
Structural formula:
Application:
Widely used for the whitening of PVC，PE， PP，PS，ABS，SAN，SB，CA，PA， PMMA, acrylic resin，printing ink，paints and coatings etc.
Properties & Features：
Light green powder, odorless, soluble in alkane, fat, mineral oil, paraffin and most organic solvents, max. spectral absorption value: 375nm (in ethanol), max. emission wavelength: 435nm (in ethanol).
Melting point： 196-203°C，Decomposition temperature is larger than 220°C
Purity ：≥99%
Fineness ： through 120 meshes
Packing:
25KGS fiber drums within double PE bags；Or according to user requirements packaging