Audited Supplier
OB-1
1533-45-5
C28h18o2n2
216-245-3
Yellow-Green
Fluorescernt Brighening Agent
Powder
Outstanding Whitener of Polyester and Its Flake. a
AFINE
by Sea
98.5%
China
3204200000
Product Description
Optical brightening Agent OB-1
Other name: Fluorescent brightener C.I.393CAS NO: 1533-45-5
Appearance: Greenish yellow powder
Purity: 98.5%Min
Melting point: 355-360°C
Solubility: insoluble in water,but soluble in high boiling point organic solvent such as phenyl-chloride
Packaging: Packaged in cardboard drums,20kg or 25kg each
Properties: Does not dissolve in water, can dissolve in such high boiling point solvents as trichlorobenzene, diphenyl ether,etc.; Because this product has high melting point and strong stability,so it has very good heat resistance; Because this product's hydrophobic nature, so it has good light fastness; and for it has strong fluorescence, it can not only improve the whiteness of the products but also can improve the brightness, so it can be used as disperse dyes in the chemical fibre, can be used like oil dissolving coloring agent in the plastics.
Uses:
1.Suitable for whitening chemical fibers, such as the polyester fibre, nylon fiber, polypropylene fiber and so on.
2. Suitable for whitening and brightening polypropylene plastic, hard PVC, ABS . EVA, polystyrene, polycarbonate, etc.
3. Suitable to be added into the conventional polymerization of polyester and nylon.
4. Especially suitable for whitening the plastics of elevated temperature
SPECIFICATION
| Items | Specifications | Results |
| Appearance | Yellow or yellowish green powder | Conform |
| Assay (HPLC) | ≥98.5% | 98.90% |
| Melting point | 355~360ºC | 357.4~358.8ºC |
| Volatile matter | ≤0.5% | 0.29% |
