FLUORESCENT BRIGHTENER APC
CAS:16470-24-9
MOLECULAR FORMULA: C40H40N12O16S4Na4
MOLECULAR WEIGHT: 1165.12 (As International relative Atom Mass 1997)
Max UV ABSORPTION WAVELENGHTH: 350 nm
EXCUTIVE STANDARD: HG/T 3727-2003>
SPECIFICATIONS:
Item Indices
Appearance Amber transparent liquid
Fluorescent intensity (equivalent to standard sample) 35
Whiteness (WCIE) (equivalent to stand sample) ≥ -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 lasting adding.
2. Excellent acid-resistance and excellent whitening effect even in low pH value solution.
3. Advanced nanofiltration membrane technology is applied for this material and has low salinity and better storage stability under normal temperature.
4. Compared with other products, FWA-APC has better sunlight fastness and alkaline- resistance.
5. Kept stable above 0ºCand cooled under -3ºC, but have no influence on its usage 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.
PROCEDURE:
l. Addition to the stock: adding without dilution. Usual dosage: 0.05-1.2% on dry pulp.
2. Addition via size press: combined with starch, CMC, PVA and other products designed for surface sizing. Usual dosage: 0.5-10 g/L.
3. Addition to the pigment coating mixtures: adding in any stage of building coating material. Good performance with the carrier of CMC, PVA and starch. Usual dosage: 0.1-1.4% on dry white pigment.
PACKAGE AND STORAGE:
1000 kg, 200 kg or 50 kg plastic drum, or for the special demand. Should be stored cool, dry and ventilate place, and storage period should not exceed 6 months.
NOTE:
1. The information of our products is for reference only. We are not responsible for any unexpected results or patent dispute caused by it.
2. Please contact us timely if you have any problems in technology or application.