Optical Brightening Agent Fluorescent Brightener Ob Optical Brightener Ob-1

• CAS No.: 1533-45-5
• Formula: C28h18o2n2
• EINECS: 216-245-3
• Colour: Yellow, Yellow-Green
• Appearance: Powder
• Usage: Paint, Ceramic, Cosmetic, Plastic, Leather, Paper, Textile, Detergent
• Model NO.: Optical Brightener
• Application Material: Natural Silk
• Type: Synthetic
• Solubility: Solubility
• Composition: Benzimidazole Derivative
• Yellow Pigments: Iron Oxide Yellow
• Green Pigments: Lead Chrome Green
• Blue Pigments: Iron Blue
• Item Name: Optical Brightener Ob-1
• pH Value: 3-5
• Quantity: Around 10.8mts/20’FCL with Pallet
• Roll Size: 0.53*10m
• Sample Policy: Free Supplied
• Purity: High Purity Based on Different Grades
• Transport Package: 30kgs or 60kgs Plastic Drum
• Specification: SGS
• Trademark: LiftTech
• Origin: China
• HS Code: 32042000
• Production Capacity: 30000ton/Year

Product Description

Product: Optical Brightener OB
Chemical name: 2.5-bis (5-terbuty1-2-benzoxazolyl) thio-phene
 
Description:
OB is a fluorescent whitening agent. The product is useful in plastics, man-made fibers, printing inks and coatings, flexible PVC and polyethylene. Dosage: 0.01%~0.05%.

Properties:
Optical Brightener OB does not dissolve in water, can dissolve in such high boiling point solvents as trichlorobenzene, diphenyl ether,etc.,
1. Cause this product has high melting point and strong stability, so it has very good heat resistance;
2. Cause 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.

Specification:

Molecular Formula	C26H26SO2N2
Molecular Weight	430g/mole
Appearance	Slight Yellowish powder
Melting Point	200-202°C
Volatiles	<0.15%
Partical Size	<50 (mean micron)

 
Application/Uses:
• Coatings 
• Flexible PVC 
• Man-made fibers  
• Plastics
• Polyethylene 
• Printing Inks 
 
Key Attributes:
• Colors appear more brilliant 
• Environmentally friendly 
• Excellent brightening ability 
• Produce a bluish tinge, masking yellowness 
• Whiter-than-white appearance
 
Packing : 25kgs fibre drum
Quantity: Around 5.25mts/20'fcl without pallet.
Storage: Keep in cool and dry place, far away from