Fluorescent optical Brightener OB-1(C.I.393)

• Post Date:

  Feb 27,2016

• Expiry Date:

  Feb 26,2017

• Detailed Description:

  Cas No. :1533-45-5 Quantity: 2000Metric Tons
  Specs:OB-1 yellow
  Fluorescent Brightener OB-1
  1.Chemical name:
  Distyryl bisbenzoxazole OB-1
  
  2.Technical conditions:
  Purity: ≥ 99.95%
  Appearance: Bright yellow crystalline powder
  Melting point: 250 ~310℃
  Ash: ≤0.1%
  Volatile:≤0.5%
  Fineness: ≥ 100 mesh
  3.Features:
  Bright green crystalline powder---fluorescent brightener OB-1, insoluble in water, odorless, stable performance, the maximum absorption of wavelength spectrum is 370mm, it is mainly used in the synthesis of fiber and plastic.
  
  4.Usage and dosage:
  Fully mix up the fluorescent brightener OB-1 with the raw materials, then molding processing. Fluorescent brightener OB-1 is commonly used in the amount of 0.01-0.03%, that is, each 100kg of the materials, the fluorescent brightener OB-1 takes 10-30g or can be adjusted according to the requirements of the product or test.
  
  5.Packaging and Storage:
  20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.
  To avoid light, can be stored in cool and dry place for 24months.
  
  Notes:
  A small amount of crystallization is allowed when storage over 2 months, the effect will not be affected during the shelf life.

• 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:

  Changsha Lianda Chemical Co.,Ltd.     [ China ]        

• Contact:

  Molly

• Tel:

  +86-731-83888220

• Fax:

  +86-731-88726158

• Email:

  molly@csldhg.cn