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

Inquiry
  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: 7128-64-5 2,5-Di(5-tert-butylbenzoxazol-2-yl)thiophene
  Safety Description: S24/25:;

  Company: Changsha Lianda Chemical Co.,Ltd.         
  Contact: Ms.Molly
  Tel: +86-731-83888220
  Fax:
  Email: molly@csldhg.cn
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