A Brief on Acid Black 2

by Sanjeev Yadav SEO Consultant

Before talking much about acid black 2, we need to know about nigrosine. It is a dark black dye produced mainly from aniline. There are two other major components which are also added with aniline to prepare this dye, such as nitrobenzene and aniline hydrochloride. Copper or iron acts as a catalyst in the preparation procedure of this black pigment.

Nigrosine is available in three varieties, namely-
·    Acid Black 2, which is soluble in water
·    Solvent Black 7, which is soluble in oil
·    Solvent Black 7, which is soluble in spirit or alcohol

In this article, you will get to know the detailed information about Acid Black 2 Nigrosine. The molecular structure of this type of nigrosine puts it in the azine class.

Some of the major quirks of acid black 2 are-

·    It dilutes in the sulphuric acid solution and generates a blue coloured precipitation
·    It dilutes in the aqueous solution and generates a light purple coloured precipitation
·    By getting in contact of sodium hydroxide, it makes dark purple coloured precipitation.

The common uses of acid black 2 are-

Biological uses
In the biological laboratories, acid black 2 is used as a negative stain. Actually, it determines the different arrangements of cell structure and their sizes. Then it is used to stain different types of cells to help in the research works. This is a great use of acid black 2. Well, there is a substitute method to use it and that is to apply heat on the cells. But this can damage the cells so nigrosine is the only safest solution.

Other uses
·    As a dye in the textiles, leather, and wood
·    In the manufacturing of ink, shoe polishing cream, carbon papers, and toners
·    In the form of picric acid
·    In the manufacturing of cosmetics

The exporters of acid black 2 offer A-quality products to their clients scattered all over the world. They never compromise on the quality of the dye and maintain industry standards in the whole process of manufacturing. Their team of skilled and experienced professionals manages the storage, packaging, and delivery of the nigrosine products. The eligible distribution network of the exporters of acid black 2 can fulfill the supply of bulk orders in the scheduled time frame. They also impress their customers with their affordable rates.

Hence, acid black 2 is hugely used in several industries as a coloring agent.