FLUORESCENT BRIGHTENER FB-351
C. I. 351 CAS: 27344-41-8

MOLECULAR FORMULA: C28H20S2O6Na2
MOLECULAR WEIGHT: 562.60 (As International relative Atom Mass 1997)
Max UV ABSORPTION WAVELENGHTH: 349nm
EXCUTIVE STANDARD: HG/T3726-2003

PROPERTY:
Optical Brightener FB-351 is a disulfonic distyrylbiphenyl 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 protein fiber at room temperature. It has high brighten intensity on cotton cloth as much 2.7 times as bis (triazinylamin) stilbene derivatives, and has well optical blue color monitor, dissolve and disperse properties. It has extremely high stability with hypochlorite sodium; It is a bleaching resistant optical brightener.

APPLICATION:
Used in synthetic detergent industry and soap industry.

PROCEDURE:
1. It can be added in any procedure of the production of synthetic detergent and soap. It can be obtained 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%
Liquid detergent: 0.02-0.06% Washing syrup: 0.005-0.02%

PACKAGE:
Packed per 25kg in cardboard bucket or cardboard box after being packed in plastic bag first.

TRANSPORTATION:
Avoid inversion, sunlight, moisture and crash. Avoid damage the package.

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