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Basic Dyes

Basic Dyes

Basic Dyes
  • Basic Dyes
  • Basic Dyes

Basic dye is a cationic stain and reacts with material that is negatively charged. Usually available in synthetic form, these act as bases and are actually aniline dyes. As their color base is not soluble in water, this can be achieved by converting base into salt. These basic dyes also possess :
At a chemical level, basic dyes are typically cationic and display cationic functional groups. Further, as the basic dye is a type of stain that is cationic / positively charged, it reacts well with materials that are anionic /negatively charged.

Basic dyes comprise:
A few examples of basic dyes are:
Further, an example of basic dye which has amino groups as their auxochrome is Basic Blue 9 which is very popular dye and has great usage value. 

Table of Basic Blue 9:
Common nameMethylene Blue
Other nameMethylene Blue
Suggested nameSwiss blue
C I nameBasic blue 9, Solvent blue 8
C I number52015
Solubility aqueous3.55%
Solubility ethanol1.48%
Empirical formulaC16H18N3SCl
Formula weight319.9
A basic chemical structure of Basic Blue9

Advantages of Basic Dyes :
Limitations of Basic Dye :

Modified Basic Dye :
Having same chemistry as basic dyes, modified basic dyes have a bit longer molecular structures in comparison to typical conventional basic dyes. Some of the key advantages over conventional basic dyes include:
Application of Basic Dyes :
Basic dyes are extensively used for dyeing of:
With basic dyes not showing any migration in acrylic fibers under normal dyeing conditions, these are also preferred for dyeing of leather. Here, threes get combined easily with vegetable-tanned leather, thus doing away with mordant. Further, basic dyes are also used in coloring of papers.

Basic Rhodamine

Basic Rhodamine

1. Basic Violet 1  (liquid)2.basic Violet 3 
3.basic Violet 4  (liquid)4.basic Yellow 90 (liquid)5.basic Yellow 96 (liquid)6.basic Blue 26    (liquid)7.basic Violet 10 (liquid)  
8.basic Violet 1 (powder)9.basic Violet 3 (powder)10.basic Violet 4 (powder)11.basic Violet 10 (powder)            
12.basic Yellow 2 (powder)
13.basic Green 1 (powder)
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