Ob-1 Oba 393 Optical Brightening Agent Fluorescent Brightener Used for Plastics

• CAS No.: 1533-45-5
• Formula: C28h18o2n2
• EINECS: 216-245-3
• Color: Yellow-Green
• Kind: Fluorescernt Brighening Agent
• Appearance: Powder
• Model NO.: OB-1
• Application: Outstanding Whitener of Polyester and Its Flake. a
• Transport Package: by Sea
• Specification: 98.5%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Optical brightening Agent OB-1

Other name: Fluorescent brightener C.I.393
CAS 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%