C.I. Reactive Blue 21

Name	Reactive Turquoise Blue Kn-G
Synonyms	Reactive Blue 21 Reactive Blue 21 Turquoise Blue G C.I.Reactive Blue 21 C.I. Reactive Blue 21 Sumifix Turquoise Blue G Dinazol Turquoise Blue G Reactive Turq. Blue KN-G Remazol Turquoise Blue G Navictive Turquoise Blue G Celmazol Turquoise Blue GN Reactive Turquoise Blue Kn-G
CAS	12236-86-1

Molecular Formula	C40H25CuN9O14S5
Molar Mass	1079.5494
Physical and Chemical Properties	Blue powder. The solubility in water (20 °c) was 100g/L. The aqueous solution was Lake Blue, with 1mol/L sodium hydroxide not changed in color, followed by addition of sodium hydrosulfite and warming to purple, followed by addition of sodium perborate to return to the original color, slightly light. In concentrated sulfuric acid, it is blue, and the color is unchanged after dilution; In concentrated nitric acid, it is green, and the color is slightly light after dilution.
Use	Used for dyeing and printing of cotton, viscose, wool, silk and other fibers

Raw Materials

EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Use	reactive Alexandrine KN-G can be used for dyeing cotton and viscose fibers, suitable for various dyeing methods, with moderate affinity, the fixation rate is low, can be dyed in single color, also used for green, dark green and so on. Also used for cotton, viscose fiber fabric direct, anti-dyeing printing, can only be used for light color. For silk, wool, nylon, Vinylon dyeing, light fastness is poor. For the direct printing of cotton blended fabric, it can be printed in the middle and deep color, and has good fastness. used for dyeing and printing of cotton, viscose, wool, silk and other fibers
production method	copper phthalocyanine, P-(2-sulfated ethyl sulfone) aniline, chlorosulfonic acid and thionyl chloride are used as raw materials, the copper phthalocyanine is first subjected to a chlorosulfonation reaction with chlorosulfonic acid and thionyl chloride, and then the product is condensed with P-(2-sulfatyl) aniline, salting out, filtering and drying to obtain a finished product..

Last Update：2024-04-09 20:52:54

Product Name: Reactive Turquoise Blue KN-G Request for quotation
CAS: 12236-86-1
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589

Wechat: +86 19849939632

Product Name: Reactive Turquoise Blue KN-G Request for quotation
CAS: 12236-86-1
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589

Wechat: +86 19849939632

View History

C.I. Reactive Blue 21

Raw Materials for C.I. Reactive Blue 21

Potassium chloride
Thionyl chloride
Chlorosulfonic acid

C.I. Reactive Blue 21 Request for Quotation