Optical Brightening Agent OB
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Post Date: | Jul 16,2013 |
Expiry Date: | Aug 15,2013 |
Detailed Description: |
Cas No. :7128-64-5
Quantity: 1000000 Price:23 USD Kilograms OB is a high molecular weight optical brightener of the thiophenediyl benzoxazole class, suitable for the optical brightener of polymers at all stage of processing. Typical Properties Chemical Name: 2,2-(2,5-Thiophenediyl) Bis[5-(1,1-dimethylethy)] Benzoxazole Molecular Formula: C27H27O2N2S Molecular Weight: 430 CAS No.: 7128-64-5 C.I.: 184 Specifications: Appearance: Yellowish or yellowish green crystal powder Assay: 99% min. Melting Point: 196-203 Ash: 0.3% max. Volatile Content: 0.3%max. Particle size: 200 meshes Max. Absorption Wavelength: 375nm(in ethanol) Application (in each 100kg polymer): PVC: White 0.01-0.05 (10g-50g) Transparent 0.0001-0.001% (0.1g-1g) PS: White 0.001% (1g) Transparent 0.0001-0.001% (0.1g-1g) ABS: Primitive color 0.01-0.05% (10g-50g) (effectively eliminate the intrinsic yellow color in ABS) White 0.01-0.05% (10g-50g) PE, PP: Achromaticity 0.0005-0.001% (0.5g-1g) White 0.005-0.05% (5g-50g) Other Plastics: Refer to the directions given above. |
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: | China Best Gain Science Technology Co Ltd [ China ] |
Contact: | Hellen |
Tel: | 86-22-83280517-17 |
Fax: | 86-22-83280392 |
Email: | tjbgt@bgtcn.com |
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