fluorescent whitening agent FB-351(C.I.351 and Cas no. 27344-41-8)

FLUORESCENT BRIGHTENER FB-351

 C.I. 351    CAS:27344-41-8

STRUCTURE:

MOLECULAR FORMULA: C₂₈H₂₀S₂O₆Na₂

SUBSTANCE NAME:

disodium 2,2'-([1,1'-biphenyl]-4,4'-diyldivinylene)bis(benzenesulphonate)

MOLECULAR WEIGHT: 562.60 (As International relative Atom Mass 1997)

Max UV absorption wavelength:349nm

EXCUTIVE STANDARD: HG/T3726-2003

SPECIFICATIONS:

PROPERTY:

Optical Brightener FB-351 is a disulfonic distyrylbiphenyl biphenyl compound, which is the most excellent brightener used in detergent industry. It can soluble in water easily and has better whitener effect on cellulose fiber, polyamide and proteinic fiber at room temperature. It has high brighten intensity on cotton cloth as much 2.7 times diphenylethylene tristriazine derivatives, and has well optical blue color moniter, dissolve and disperse properties. It has extremely high stability with hypochloride sodium, it is a bleaching resistent optical brightener.

APPLICATION:  Used in synthetic detergent industry and soap industry.

PROCEDURE:

1. It can be added in any procedure of the process of synthetic detergent and soap. It can get excellent effect if used together with optical brightener 31^#.

2. Recommended dosage :

   Common washing powder: 0.005-0.03%        Soap:0.01-0.05%

   Concentrated washing powder: 0.01-0.05%     Soft agent of fabric fiber: 0.01-0.05%

   Lquid detergent: 0.02-0.06%                   Washing syrup: 0.005-0.02%

PACKAGE:

Packed per 25kg in cardboard box after being packed in plastic bag first.

TRANSPORTATION:

Avoid inversion, sunlihgt, moisture and crash. Avoide damage the package.

STORAGE:

Should be stored in cool, dry and ventilate place, and storage term should not exceed 2 years.