Optical Brightener ER-I (C.I.199)

Other Name

Optical brightener

Appearance

Light yellow crystalline powder

CAS No.

13001-39-3

Purity

≥98%

Volatile

<0.5%

Melting Point

229~231°C

Chemical name:

1,4-Bis(2-cyanostyryl)benzene

Formula: 

C24H16N2

EINEC:

235-835-1

Package

20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.

Applications:

Yellowish green crystalline powder ER-I, which insoluble in water, soluble in most organic solvents, light purple blue color light.The corresponding brand is Blankophor RR abroad.

Applied to the whitening process of Dacron, acetic fiber, polyamide fiber, blends of terylene-cotton.

Properties: 

Very suitable for whitening and brightening of polyester (pet) fiber, and also have the pretty good whitening effects on polyethylene, polypropylene, polyvinyl chloride (PVC) and products.

Dosage:

The usual dosage is 0.02-0.08% (W/W) or can be adjusted according to the standard requirements of DT(Recalled PP).