Optical Brightener OB

C.I.: 184
CAS: 7128-64-5
Ionic type: Nonionic
Ingredient:2,5-Di(5-tert-butylbenzoxaz , ol-2-yl)thiophene
Color light: Blue light
Molucular Formula:C26H26SO2N2
Formula Weight:430.5618
Transmittance: ≥96%
Max uv absorption wavelength: 375nm
Maximum fluorescence emission wavelength: 435nm.
Place of Origin: China
Optical Brightening OB is insoluble in water, soluble in alkanes, fats, mineral
oils, waxes and common organic solvents. OB has a high solubility (up to 6%),
high fineness, and will not appear turbidity and impurity phenomenon, so
fluorescent whitening agent OB is suitable for use in paints and coatings. It
has superior fluorescent whitening effect, good thermal and chemical stability,
and will not yellow for a long time, suitable for use in PVC, PS, PE, PP, ABS
and other plastics and acetic acid fiber. Good light transmittance, good
migration resistance, suitable for whitening transparent plastic products.
Synonyms: Optical brightener OB, also named, Fluorescent Brightener 184, OB
184, CAS 7128-64-7, whitening agent OB 184, CI 184, C. I. Optical Brightener
OB, Tinopal OB, Brightener OB, Basic Brightener OB, Triton OB.
Application: Optical brightener OB is mainly used for PVC, PS, PE, PP, ABS and
other plastics and acetic acid fiber, paint, paint, ink and other whitening.
Because of its good light transmittance, suitable for transparent plastic
products whitening.

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