7128-64-5
C26h26n2o2n2
230-426-4
Powder
Plastic Auxiliary Agents
White
Optical Brightener/Fluorescent Brightener
Optical Brightener Ob-1/Whitening Agent Ob-1
184
357~359°c
414
99.50%
Available
LD Chemical
Bag, Drum
1kg/bag; 25kg/drum
Changsha, Hunan
32042000
Product Description

Product Description
China factory Optical Brightener OB 184 Fluorescent Brightener OB
Fluorescent whitening agent OB can be used for whitening and brightening of thermoplastics, such as PVC, PF, PP, PS, ABS, etc. Excellent heat resistance and light resistance. It is also used for whitening or anti-counterfeiting marks of some fibers, paints, coatings, high-grade photographic papers and inks.
Optical Brightener OB Specification:
Product Cate | Optical Brightening Agent For Plastic |
Product Name | Optical Brightening Agent OB |
Chemical Name | 2,5'-Bis[2-(5-tert-buty l-2 benzoxazoly) |
CAS No. | 7128-64-5 |
C.I. No. | 184 |
Structural Formula | |
Molecular Formula | C26H26N2O2N2 |
Molecular Weight | 430 |
Technical Index | Appearance:slight greenish yellow powder Melting Point:200-202°C Purity:≥99% |
Uses | Mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc. |
Basic Information:
1.Small consumption, strong whitening intensity, small consumption can bring a very good whitening result.
2. Wide service behavior, suitable for various kinds of plastic whitening.
3. Have a good compatibility with plastic , good resistance to high temperature and excellent light fastness and weathering resistance.
4. Especially suitable for whitening plastics, such as the polyolefin, polyamide, polyacrylonitrile and so on.
5. Widely used in the film, injection molding and extrusion molding material, is suitable for all plastic processing.
Method of Application: Recommend consumption: Put about 20g OB brightener into every 100kg materiel, concrete consumption is adjusted according to compounding formula.
6.Mainly be used in whitening of thermoplastic, polyvinyl chloride (PVC), polypropylene (PP), polyester fiber, paint and ink, etc.
Product Specification:

1.Small consumption, strong whitening intensity, small consumption can bring a very good whitening result.
2. Wide service behavior, suitable for various kinds of plastic whitening.
3. Have a good compatibility with plastic , good resistance to high temperature and excellent light fastness and weathering resistance.
4. Especially suitable for whitening plastics, such as the polyolefin, polyamide, polyacrylonitrile and so on.
5. Widely used in the film, injection molding and extrusion molding material, is suitable for all plastic processing.
Method of Application: Recommend consumption: Put about 20g OB brightener into every 100kg materiel, concrete consumption is adjusted according to compounding formula.
6.Mainly be used in whitening of thermoplastic, polyvinyl chloride (PVC), polypropylene (PP), polyester fiber, paint and ink, etc.

TEST ITEMS | SPECIFICATION |
APPEARANCE | LIGHT YELLOW OR MILK WHITE POWDER |
SHADE | LIGHT YELLOWISH |
METLING POINT | 201-202 °C |
PURITY | 99% min |
FINENESS | 300 mesh min |
SOLUBILITY | hardly soluble in water,but soluble in paraffin, mineral oils and ordinary organic solvents. |

I.OPTICAL BRIGHTENER FOR PLASTICS/RUBBER/INK/COATING | ||
Optical Brightener OB-1 | C.I. 393 | CAS NO.1533-45-5 |
Optical Brightener OB | C.I. 184 | CAS NO.7128-64-5 |
Optical Brightener FP-127 | C.I. 378 | CAS NO.40470-68-6 |
Optical Brightener KCB | C.I. 367 | CAS NO.5089-22-5 |
Optical Brightener KSN | C.I. 368 | CAS NO.5242-49-9 |
Optical Brightener EBF | C.I. 185 | CAS NO.12224-41-8 |
Optical Brightener ER-I | C.I. 199 | CAS NO.13001-39-3 |
Optical Brightener ER-II | C.I. 199:1 | CAS NO.13001-38-2 |
Optical Brightener ER-III | C.I. 199:2 | CAS NO.13001-40-6 |
II.OPTICAL BRIGHTENER FOR DETERGENT | ||
Optical Brightener CBS-X | C.I. 351 | CAS NO.27344-41-8 |
Optical Brightener CXT | C.I. 71 | CAS NO.16090-02-1 |
III.OPTICAL BRIGHTENER FOR TEXTILE | ||
Optical Brightener ER-330 | C.I. 199 | CAS NO.13001-39-3 |
Optical Brightener BA | C.I. 113 | CAS NO.12768-92-2 |
Optical Brightener BBU | C.I. 113 | CAS NO.16470-24-9 |
Optical Brightener CXT | C.I. 71 | CAS NO.16090-02-1 |
IV.OPTICAL BRIGHTENER FOR PAPER/PULP MAKING | ||
Optical Brightener BA | C.I. 113 | CAS NO.12768-92-2 |
Optical Brightener BBU | C.I. 220 | CAS NO.16470-24-9 |
V.OPTICAL BRIGHTENER FOR WOOL/ACRYLIC | ||
Optical Brightener SWN | C.I. 140 | CAS NO.91-44-1 |
Optical Brightener BAC | C.I. 363 | CAS NO.95078-19-6 |
Optical Brightener Certificates:SGS,REACH,ROHS,FDA


