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Optical brightener OB |
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2.5-bis(5-tertbutyl-2-benzoxazolyl)thiophene |
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It is used in thermoplastic plastics. PVC, PE, PP, PS, ABS, SAN, SB, CA, PA, PMMA, acrylic resin. polyester fibre paint, coating the brightening of prointing ink. |
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Bright yellow green crystal powder, odorless, melting point:196-203ЎЖC, Decomposition temperature is large than 220ЎЖC. 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 375nm(ethyl alcohol) |
Industrial field |
dye & pigment |
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There are no existing companies to distribute selected chemical product |
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