Fluorescent bleaching agent OB(C.I.184)

Chemical name:2,5-Di(5-tert-butylbenzoxazol-2-yl)thiophene.

CAS No.: 7128-64-5

Structural formula:

Molecular formula: C₂₆H₂₆SO₂N₂

Molecular weight: 430

Properties:Bright yellow green crystalline powder,flavorless, melting point: 200-202°C,decomposition temperature>220°C,insoluble in water, soluble in alkane, fat, mineral oil, wax and common organic solvents. Maximum optical wavelength:375nm(ethanol).

technical condition:

Appearance:Bright yellow green crystalline powder,

Shade: Bright blue
fluorescence

Melting point: 200-203°C

Content:≥99.5%

Volatile matter: ≤0.5%

Fineness:pass 120 mesh

Use: Used in whitening thermoplastics,including polyvinyl chloride, polyethylene(PF), polypropylene(PP), polystyrene(PS), acrylonitrile/butadiene/styrene copolymer(ABS), styrene/acrylonitrile copolymer(SAN), styrene/butadiene copolymer(SB), cellulose acetate(CA), polyamide(PA), PMMA, acrylic acid resin, polyester fibre(terylene), paint, coating and printing ink.

Packing:corrugated case with plastic lining. NW:25kg.