Formula: C40H42N12O10S2Na2

Molecular Weight:960.95(As International relative Atom Mass 1991)

Max uv absorption spectrum:348nm

excutive standard:Q/LQH001-1997

Specification:

Appearance                                         light yellow uniform powder

Fluorescent strength                                 100+/-3  

(equivalent to the standard sample)

Color shade                                         similar to slightly different

Moisture content                                     ≤5%

Content of water-insoluble impurities                    ≤0.5%

Fineness

(residual content passed through 180μm-pore sieve)      ≤10%

Property:

The product is readilysoluble in water,acid-resistant,alkali-resistant,and has much better whitening effect VBL at PH 4.5-7.Belonging to anionic type,it can be used in the one bath with anionic or nonionic surfaceants.

Application:

Mainly applied to whiten paper pulp,surface sizing,coating,and also applied to whiten cotton,
lined and cellulose fiber as well as cellulose fabrics,and to brighten light-colored cellulose favrics.

Usage:

1.being used inpaper-making industry,add them into the paper pilp,coating solvent and surface
 gluing solvent after dissolving with the 20 times water.usual dosage:0.1-0.3% on dry pulp or dry dope.