Fluorescent Brightener ER-II

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Product Name:  Fluorescent Brightener ER-II
Chemical Name: 1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene
Synonyms: 
C.I.199-2; fluorescent brightener er-ii; 1-(2-CYANOSTYRYL)-4-(4-CYANOSTYRYL)BENZENE; 2-[2-[4-[2-(4-cyanophenyl)vinyl]phenyl]vinyl]benzonitrile; Fluorescent Brightener 199:1; Benzonitrile, 2-2-4-2-(4-cyanophenyl)ethenylphenylethenyl-; ER-II; 2,4′-[1,4-Phenylenebis(2,1-ethenediyl)]bisbenzonitrile
CAS No: 13001-38-2
MF: C24H16N2
MW:  332.4
Category: 
Fluorescent Brightener
Structure:

Descriptions:

Light Yellow Green powder.

Melting point of 181-186°C.

Compared with ER-I, there are the following characteristics
Shade ratio of blue light;
The adsorption rate is faster than ER-I;
The color temperature was lower than that of ER-I.

Use:

It is used for brightening and whitening of blended textiles such as polyester, polyester cotton, polyester yarn, polyester yarn, polyester wool, polyester and hemp. It is also used for whitening of artificial leather and coating industry.

Storage: Storage should be cool and ventilated, away from heat, fire, to prevent sun exposure, heat is strictly prohibited.
Package: 25kg PP bag for solid powder. 200L or 250KG Drum for Liquid.

Specifications:

Appearance Light yellow green powder
Content ≥99%
Moisture ≤0.5%
Insoluble ≤0.1%
Melting point 181-186°C
 Usage  0.1~0.4%(o.w.f)