Sinocure Chemical Group Co.,Ltd.

Sinophor® Fluorescent Brightener

Sinophor® OB-1

Sinophor® OB-1 is a whitening agent commonly used in the plastics industry. Its appearance is divided into OB-1 yellow and OB-1 green, which can be freely selected according to customer needs.(For the difference, please refer to the Post-The difference between Fluorescent brightener OB-1 green phase and yellow phase)

Sinophor® OB-1 has the following characteristics:
1. High whitening intensity and strong fluorescence.
2. Wide application performance, widely used in the whitening of polyester, nylon fiber and various plastics.
3. It has excellent high temperature resistance.

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SKU SCGFB002 Category

SINOPHOR® OB-1

Chemical Name:2,2′-(vinylenedi-p-phenylene)bisbenzoxazole;2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole

Synonym:Fluorescent Brightener OB-1;Rylux OB-1;GSTAB OB-1;Fluorescent Brightener 393;FB 393

Cas No.: 1533-45-5

Structure:

Spec:

Appearance Bright yellow-green crystalline powder/ yellow powder/ green powder
Assay ≥98%
Melting point 350-355℃
Fineness ≥200 mesh
Ash content ≤0.1%
Maximum absorption wavelength 374nm
Maximum fluorescence emission wavelength 434nm
C.I. NO. 393

Features and uses:

1. It is suitable for the whitening of polyester fiber, nylon fiber, polypropylene fiber and other chemical fibers.
2. Suitable for whitening and brightening of polypropylene plastic, ABS, EVA, polystyrene, polycarbonate, etc.
3. It is suitable for adding in the conventional polymerization of polyester and nylon.

Reference dosage
1. Rigid polyvinyl chloride (PVC):
Brightening: 0.01-0.06% (10g-60g/100kg material)
Transparent: 0.0001-0.001% (0.1g-1g/100kg material)
2. Polystyrene (PS):
Brightening: 0.01-0.05% (10g-50g/100kg material)
Transparent: 0.0001-0.001% (0.1g-1g/100kg material)
3. Polyvinyl chloride (PVC):
Brightening: 10g-50g/100kg material
Transparent: 0.1g-1g/100kg material

Pack:25kg/drum

Storage:Stored in a cool dry place out of direct sunlight.

Details

Chemical Name

Fluorescent Brightener OB -1 / FB 393

Cas No.

1533-45-5

Formula

C28H18N2O2

M.W

414.45

Package

25kgs/Drum

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