Optical Brightener ER-II (C.I.199: 1)

Other Name

Optical brightener

Appearance

Light yellow crystalline powder

CAS No.

13001-38-2

Purity:

≥98%

Chemical name:

 1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene

Formula: 

C24H16N2

EINECS:

235-834-6

Volatile

<0.5%

Melting Point

188~192°C

Package

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

Applications:

Light yellow crystalline powder ER-II, which insoluble in water, soluble in most organic solvents, blue color light.Applied to the whitening process of Dacron, acetic fiber, polyamide fiber, blends of terylene-cotton.

Properties: 

Optical Brightener ER-II is mainly for the production of high performance grout products to meet the special requirements of printing and dyeing industry. Also can be used in brightening and whitening of polyester fiber, acetate and nylon fibers, PVC, PS and other 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).