model:OB

Source：HuizhouYingguang Plastic Pigments Co., Ltd   Released in：2025-04-10   Hits：

Product Name: Fluorescent Brightener OB

Chemical name: 2.5-bis- (5-tert-butyl-2-benzoxazolyl) thiophene
Structure:

CAS No: 7128-64-5
EC number: 7128-64-5
Molecular formula: C26H26N2O2SH9C4
Molecular weight: 430

Nature: This product is bright yellow crystalline powder, tasteless. Melting point 196-203 ° C, decomposition temperature greater than 220 ° C. Do not dissolve in water, soluble in alkane aliphatic hydrocarbon oil and common organic solvent. The maximum absorption wavelength is 375 nm (ethanol).

Technical conditions:
Appearance: bright yellow green crystalline powder
Shade: bright blue fluorescence (similar to standard)
Melting point: 196-203 ° C
Solid content: ≥99.5%
Fineness:> 600 mesh

Uses: mainly used for thermoplastic, polyvinyl chloride, polyethylene, polypropylene, polystyrene, acrylonitrile / butadiene / styrene copolymer, styrene / acrylonitrile copolymer, styrene / butadiene copolymer , Cellulose acetate, polyamide, polymethyl methacrylate, acrylic resin, polyester fiber (polyester), artificial stone, paint, paint, ink whitening.
Dosage: 0.0001-0.0005

Packaging: barrels, lined with plastic bags, net weight 25KG per box, or according to user requirements packaging.

【Previous】：model:OB-1

【Next】：model:KSN