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Postion:Product Catalog >Catalyst and Auxiliary>Fluorescent brightener>Optical brightener OB-1
Optical brightener OB-1
  • Optical brightener OB-1

Optical brightener OB-1

Price Get Latest Price
Package 25kg
Min. Order: 25kg
Supply Ability: 5mt
Update Time: 2022-12-30

Product Details

Product Name: Optical brightener OB-1 CAS No.: 1533-45-5
Min. Order: 25kg Purity: 1
Supply Ability: 5mt Release date: 2022/12/30
Product name:Fluorescent Brightener OB-1
Main ingredients:2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole
Chemical type:Compound of diphenylethylene bisbenzoxazoleChemical formula:C28H18N2O2
CAS No:1533-45-5Molecular weight:414.46
EINECS No:216-245-3C.I. No:C.I.393
Molecular structure:Article illustration
Appearance:Yellow-Green uniform powder
Assay:≥98.5%
Melting point:355- 359.0°C
Purity:≥98.5%
Volatile:≤0.50%
Ash:≤0.50%
Fineness:Pass 200meshes
Application:Optical Brightener OB-1 is used widely in the plastic market. Because of its excellent brightening ability,good thermal stability,and compatibility with many polymers.
For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc.


Company Profile Introduction

Winchem Industrial Co. Ltd is a leading manufacturer and exporter of Dyestuffs and Pigments for textiles, paper, plastics, inks, coating and other industries. Our company located in Ningbo, Zhejiang province, beautiful port city in East China, also near Shanghai seaport with convenient transportation. The major of our products are exported to Europe, North America, South America and Asia etc., and our service and quality are well accepted by the customers. Our lab is equipped with state-of-art instruments to control quality from batch to batch, and can guarantee the quality stable of our products. And most of our products comply with relative legislation to heavy metal content and aromatic amines.

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  • Since: 2015-11-26
  • Address: RM905 BLOCK3 EAST BUSINESS CENTER YINZHOU DISTRICT NINGBO
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