Optical brightener OB-1

• Post Date:

  May 12,2021

• Expiry Date:

  May 26,2021

• Detailed Description:

  Cas No. :1533-45-5 Price:13 USD Kilograms
  OPTICAL BRIGHTENER OB-1
  
  
  Chemical name：2,2-(4,4’- Vinyl Biphenyl) Dual Benzoxazole
  
  CAS NO. ：1533-45-5
  C.I. NO. ：393
  
  Molecular formula：C28H18N2O2 Molecular weight：414.4
  
  Structural formula：
  
  
  
  Appearance：yellowish green powder；
  
  Content(weight) : 98.0% Min
  
  Melting Point: 353-359℃；
  
  Fineness ： through 1000 meshes
  
  Solubility : insoluble in water,but soluble in high boiling point organic solvent such as phenyl-chloride
  
  Properties & Features：
  
  ① Whitening high strength, strong fluorescence.
  
  ② Wide applicable performance, widely used in polyester fiber (such as: polyester fiber, nylon fiber whitening) and many kinds of plastic whitening.
  
  ③ Excellent thermal stability and very fewer usage amounts.
  
  Range ofApplication:
  
  ① Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.
  
  ② Applicable to PP, PVC, ABS, PA, PS, PC, PBT plastic whitening brightening, with excellent whitening effect.
  
  ③ Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate)
  
  Recommended dosage: every 1000Kg polymer added amount of Optical brightener OB-1:
  
  ① dosage in polyester fiber 75-300g.（75—300ppm）
  
  ② dosage in Rigid PVC ,PP,ABS,Nylon,PC 20-50g.（20—50ppm）.
  
  ③ dosage in whitening concentrated masterbatch 5-7kg.（0.5—0.7%）.
  
  Note: For PE and soft PVC using fluorescent Optical brightener OB-1, special attention should be paid to the amount of control, excessive dosage will happen brightener migration. Add any UV absorber in the polymer, the best dosage should pay attention to adjust Optical brightener OB-1
  
  Handling and Storage:
  
  As with all industrial chemicals, use good industrial practices when handling. Avoid eye, skin, and clothing contact.Do not inhale. Do not taste or swallow. Use only with adequate ventilation. Keep container tightly closed in a dry, cool and well-ventilated place.
  
  Packaging：25KGS fiber drums within double PE bags；Or according to user requirements packaging

• CAS Registry Number:

  1533-45-5

• Synonyms:

  ;Fluorescent Brightener OB-1;FBA393；2,2'-(4.4'-diphenol vinyl)di-henzoxazol ;2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole;FBA 393;4,4'-bis(benzoxazol-2-yl)stilbene;Optical Brightener OB-1;C.I. 393;Fluorescent whtening agent OB-1;Fluorescent Whitening Agent OB-1;2,2'-(ethene-1,2-diyldibenzene-4,1-diyl)bis(1,3-benzoxazole);2,2'-[(E)-ethene-1,2-diyldibenzene-4,1-diyl]bis(1,3-benzoxazole);Optical Brightening Agent OB-1;Optical Brightner OB-1;ptical Brightening Agent OB-1;4,4-Bis(2-Benzoxazolyl) Stilbene;

• Molecular Formula:

  C₂₈H₁₈N₂O₂

• Molecular Weight:

  414.4547

• Molecular Structure:

  

• Safety Description:

  S24/25:;
  

• Company:

  Hubei Hongxin Chemical Co., Ltd     [ China ]        

• Contact:

  Michelle

• Tel:

  +86-27-65389284

• Fax:

• Email:

  bechoice@qq.com