FLUORESCENT BRIGHTENER 210 CAS:28950-61-0 MOLECULAR FORMULA: C40H36N12 Na4O14S4 MOLECULAR WEIGHT:1128.1(As International relative Atom Mass 2005) Max UV ABSORPTION WAVELENGHTH: 349±1nm EXCUTIVE STANDARD: HG/T 3970-2007 SPECIFICATIONS: Item Indices Appearance Amber transparent liquid Fluorescent strength (equivalent to standard sample) 35 Whiteness (WCIE) (equivalent to standard sample) ≥ -0.3 Viscosity (25ºC), 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 continuous addition & gauge. 2. Excellent acid resistance and excellent whiten effect even in low pH value solution. 3. Advanced nanofiltration membrane technology is applied for this material and has low salinity and better store stability under normal temperature. 4. Compared with other products, FWA-APC has better sunlight fastness and alkaline resistance. 5. Kept stable above 0ºCand cooled freeze -3ºC, but have no influence on its usage when hearted and dissolved again.
Application: 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.
PACKAGE AND STORAGE: 1000 kg, 200 kg or 50 kg plastic drum, or for the special demand.