Fluorescent brightener BBU

Fluorescent brightener BBU
Used to whiten and brighten cotton, fiber, viscose fiber and paper
C.I.220  CAS：16470-24-9
STRUCTURE:

MOLECULAR FORMULA: C40H40N12O16S4Na4
MOLECULAR WEIGHT: 1165.12 (As International relative Atom Mass 1997)
Max UV ABSORPTION WAVELENGHTH: 350 nm
EXCUTIVE STANDARD: HG/T 3727-2010
SPECIFICATIONS:   
ITEM INDEX
Appearance    Amber transparent liquid
Fluorescent intenstty (equivalent to standard sample) 35±1
Whiteness (WCIE) (equivalent to stand sample)        ≥-3
Viscosity (25℃), mPa.s                        ≤ 50
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 lasting adding.
     2. Excellent acid-resistance and excellent whitening effect even in low pH value solution.
     3. Advanced nanofiltration membrane technology is applicationed for this material and has low salinity and better storage stabilty under normal temperature.
     4. Compared with other products, FWA—APC has better sunlight fastness and alkaline- resistance.
     5. Kept stable above 0℃and icelized under -3℃, but have no influence on its usage when hearted and dissolved again.

USAGE:
   1. Optical Brightener agent for paper pulp bleaching.
2. Optical Brightener agent in the process of surface gluing.
3. Optical Brightener agent in the process of coating.