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| CBS （Fluorescent Brightener） |
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| Model No.︰ | CBS-120 |
| Brand Name︰ | - |
| Country of Origin︰ | China |
| Minimum Order︰ | - |
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Fluorescent Brightener (CBS-120)
chemical name:4,4'-bis(2-sodium sulfonate styryl) biphenyl
molecular formula: C28H18O6S2Na2
solubility: 25g/1000ml in 25*C cool water.
300g/1000ml in 95*C hot water
Maxim UV absorption wavelength:348-350mm.
Specifications:
1. appearance:bright yellow-green crystalline powder.
2. strength:1003 of the standard
3. shade:similar to the standard
4. insolubility in water:<0.5%
Molecular weight: 562
Properties: The product is yellow -green crystal powder, Its melting point is 353*C, It is unsolvde in water, no odor, having stable performance and strong fluorescence, its maximum absorption spectrum wave length 374nm the wave length transmitted by fluorescence being 434nm.
Technical conditions:
Appearance: yellow -green crystal power
Chromatic light: bright-colored blue with white light (similar to the standard product).
Melting point 216-222°C
Content: >99%
Volatility: <0.5%
Ash content: <0.1%
Fineness: through 100 meshes.
Use: It is an excellent optical brightener for polymer, lacquer, printing ink and man-made fibre.
Package: It is packed in 25KGS paper board bucket. It can be packed according to the requirement of the user.
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