Fluorescent Brightener 185 CAS 12224-41-8

Item Name:
Optical Brightener EBF

Fluorescent Brightener 185

C.I.No : 185

CAS No.: 12224-41-8

Equivalent To : uvitex EBF


Technical Specs of Optical Brightener EBF

Technical Specs Index
Appearance Light yellow crystalline powder
Purity ≥99.0%
Melting Point 219-221°C
Volatiles ≤0.5%
Ash ≤0.1%

Properties of Optical Brightener EBF

Optical Brightener EBF is light yellow crystal powder, melting point 220 ℃ (chlorobenzene recrystallization). Insoluble in water, soluble in organic solvent and concentrated acid, with bright blue fluorescence, the maximum absorption wavelength is 367nm (DMF), the maximum emission wavelength is 429nm.

Optical Brightener EBF has excellent light fastness, up to 7-8 grade. It has good stability for acid / alkali, hard water, peroxide and hypochlorite compounds.

Applications of Optical Brightener EBF

Because of its good fastness, Optical Brightener EBF is a common polyester whitening agent used at home and abroad. This product can also be used to whiten plastics, coatings, vinegar fiber, nylon, chloro fiber, etc. Similar products abroad include uvitex EBF. It is not only suitable for exhaustion dyeing, but also for pad dyeing, very suitable for alkaline discharge dyeing.

Packaging and Storage

Optical Brightener EBF is packed 25kg per fiber drum lined with plastic bag, stored in cool and dry place without direct sunlight. Shelf life is 2 years.