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Optical brightener 220

Optical brightener 220

Product name: FLUORESCENT BRIGHTENER 210
Formula:C40H36N12 Na4O14S4
Mocular Weight: 1128.1(As International relative Atom Mass 2005)
Max UV Absorption wavelength: 349±1nm
Specification: appearance: amber transparent liquid
                
fluorescent strength (equivalent to the standard sample):35
                
viscosity (25), mPa.s : 50
                 
whiteness (WCIE) (equivalent to standard sample) :≥ -0.3
                
PH value: 8-10
                
density, g/cm3: 1.1-1.2
                
Ionicity: anionic
PROPERTY   
    
1. Easily used, and can be mixed with water at any ratio. Suitable for automatic continous addition & gauge .
    2. Excellent acid resistence and excellent whiten effect even in low pH value solution.
    3. Advanced nanofiltration membrane technology is applicationed for this material and has low salinity and better store stabilty under normal temperature.
    4. Compared with other products, FWAAPC has better sunlight fastness and alkaline resistence.
    5. Kept stable above 0and icelized under -3, but have no influence on its useage when hearted and dissolved again.
 USEAGE:
    1. Fluorescent whitening agent for paper pulp bleaching.
    2. Fluorescent whitening agent in the process of surface gluing.
    3. Fluorescent whitening agent in the process of coating.

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