Optical brightener OB (C.I. 184) for PVC, PE, PP, ABS, PS

• Post Date:

  Feb 27,2016

• Expiry Date:

  Feb 26,2017

• Detailed Description:

  Cas No. :7128-64-5 Quantity: 2000Metric Tons
  Specs:Purity ≥98%
  Price:23.8 USD Metric Tons
  Payment Method: TT/LC
  Fluorescent Brightener OB
  1.Chemical name:
  Distyryl bisbenzoxazole OB
  
  2.Technical conditions:
  Purity: ≥ 98%
  Appearance: Light green powder
  Melting point: 198 ~200℃
  Ash: ≤0.1%
  Volatile:≤0.5
  Fineness: ≥ 100 mesh
  3.Features:
  The product is light green or milky green powder, non-toxic and tasteless, can dissolve in alkane, fat, mineral oil, paraffin and most organic solvents, the absorption spectra of the largest value for 375 mm (in ethanol).
  4.Usage and dosage:
  It is widely used in thermoplastic such as PVC, PE, PP, ABS, PS, unsaturated resin and paint, ink and oil soluble coatings.
  
  Percentage of weight with plastic raw material:
  PVC whitening: 0.01~0.05%; to improve the light intensity: 0.0001~0.001%
  Polystyrene :0001~0.001%; ABS:0.01~0.05%;
  Polyolefin matrix: 0.0005~0.001% White matrix: 0.005~0.05%
  
  5.Packaging and Storage:
  20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.
  To avoid light, dry at room temperature for 24 months.
  
  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:

  7128-64-5

• Synonyms:

  ;Fluorescent Brightener OB;Fluorescent brightening agent 184;Fluorescent Whitening Agent OB;Optical Brightening Agent OB;Fluorescent Brightener 184;C.I. 184;Fluorescent Brightener OB-4;Fluorescent brightening agent 184;Optical Brightner OB;BBOT;C.I. Fluorescent Brightener 362;Uvitex 2B;TINOPAL CBS-X;UVITEX OB;UVITEX(R) 2B;TOSLAB 644820;2,5-BIS(5'-TERT-BUTYL-2'-BENZOXAZOLYL)THIOPHENE;2,5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THIOPHENE;2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE;2,5-BIS(5-TERT-BUTYLBENZOXAZOYL)-2-THIOPHENE;2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE;2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene;

• Molecular Formula:

  C₂₆H₂₆N₂O₂S

• Molecular Weight:

  430.5618

• Molecular Structure:

  

• Safety Description:

  S24/25:;
  

• Company:

  Changsha Lianda Chemical Co.,Ltd.         

• Contact:

  Ms.Molly

• Tel:

  +86-731-83888220

• Fax:

• Email:

  molly@csldhg.cn