Product name: Optical Brightener 210

Formula:C40H36N12 Na4O14S4

Mocular Weight: 1128.1(As International relative Atom Mass 2005)

Max UV Absorption wavelength: 349±1nm

Excutive standard :HG/T3727-2003

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.
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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. ddition 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 pigment
PACKAGE AND STORE:

1000 kg, 200 kg or 50 kg plastic drum, or for the special demand. Should be stored cool, dry and ventilate place, and storage peroid should not exceed 6 months

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