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Fluorescent Brightener OB (C.I.184), UNITEX OB
Chemical name: 2.5-bis(5-tert-buty1-2-benzoxazolyl)thiophene
Molecular formula:C26H26SO2N2
Molecular weight:430
Properties: Bright yellow green crystal powder, odorless. Melting point: 200-202. Decomposition temperature is larger than 220. It is hard to dissolve in water. It dissolves in paraffin, fat, mineral oil, wax and common organic solvents. The hue of the fluorescent light is blue light. The wave length of the maximum absorptive light is 375 nm(ethyl alcohol)
Appearance: Bright yellow green crystal powder.
Melting Point: 199-201'C
Assay(HPLC): 99.50%
Volatile Content:0.5%
Ash:0.10%
Solubility:1g0OB completely dissolve in 100ml DMA
Penetration effect:
450nm 94.20%
500nm 96.50
Package:25kg/ drum
Fluorescent Brightener is used in thermoplastic plastics,
PVC, PE, PP, PS, ABS, SAN, SB, CA,PA, PMMA, acrylic resin, polyester fiber, paint, coating, the brightening of printing ink.
Special Recommending:
Fluorescent
Brightener CBSC.I.351)
Fluorescent
Brightener PF C.I.135)
Fluorescent
Brightener ER C.I.199)
Fluorescent
Brightener OBC.I.184)
Fluorescent
Brightener OB-1C.I.393)
Fluorescent
Brightener OB-3C.I.368)
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