Optical Brightener OB
Product name:Optical Brightener OB
Chemical Name:
2,5-Thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
Formula: C26H26N2O2S
CAS# 7128-64-5
Specification:
|
Appearance |
Slight greenish yellow powder |
|
Dosage |
0.01-0.05% |
|
Melting point |
196-200℃ |
|
Purity |
≥99% |
|
Solubility |
(g/100 g solution) at 20° C: |
|
Acetone |
0.5 |
|
Chloroform |
14 |
|
Dimethylformamide |
0.8 |
|
Dioxane |
2 |
|
n-Hexane |
0.2 |
|
Methanol |
＜0.1 |
|
Methylethylketone |
1.3 |
|
Tricresylphosphate |
0.8 |
|
Xylene |
5 |
Application:
>Features:Brilliant bluish whitening effects; excellent heat resistance; high chemical stability; good compatibility in a wide range of resin.
>Optical Brightener OB is used as an brightener and to offset the yellowness of a polymer and yield a whiter appearance. Mainly used as thermoplastic (PVC, PS, PE, PP, ABS) optical brightener. Also for coatings, printing inks, paints, dyes, manufactured fibers, synthetic leather, waxes, fats, and oils. Recommend indoor use only.
>If OB must be used in combination with a UV absorber, the absorption spectrum of the latter must leave an open window in the near UVA for the optical brightener ob.
>Recommended concentrations:0.02-5% depend on the application and degree of desired whiteness.
keywords: Optical Brightener OB
classification: Product
Product name:Optical Brightener OB
Chemical Name:
2,5-Thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
Formula: C26H26N2O2S
CAS# 7128-64-5
Specification:
|
Appearance |
Slight greenish yellow powder |
|
Dosage |
0.01-0.05% |
|
Melting point |
196-200℃ |
|
Purity |
≥99% |
|
Solubility |
(g/100 g solution) at 20° C: |
|
Acetone |
0.5 |
|
Chloroform |
14 |
|
Dimethylformamide |
0.8 |
|
Dioxane |
2 |
|
n-Hexane |
0.2 |
|
Methanol |
＜0.1 |
|
Methylethylketone |
1.3 |
|
Tricresylphosphate |
0.8 |
|
Xylene |
5 |
Application:
>Features:Brilliant bluish whitening effects; excellent heat resistance; high chemical stability; good compatibility in a wide range of resin.
>Optical Brightener OB is used as an brightener and to offset the yellowness of a polymer and yield a whiter appearance. Mainly used as thermoplastic (PVC, PS, PE, PP, ABS) optical brightener. Also for coatings, printing inks, paints, dyes, manufactured fibers, synthetic leather, waxes, fats, and oils. Recommend indoor use only.
>If OB must be used in combination with a UV absorber, the absorption spectrum of the latter must leave an open window in the near UVA for the optical brightener ob.
>Recommended concentrations:0.02-5% depend on the application and degree of desired whiteness.
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