Nigrosine is an organic synthetic dye, chemical name is N-aniline -4-azo -2-naphthalene sulfonate, molecular formula is C16H14N4O3S, relative molecular mass is 354.37. It is a black crystalline powder, soluble in water and ethanol. Nigrosine has a series of unique characteristics and a wide range of applications.

nigrosine is an organic synthetic dye, chemical name is N-aniline -4-azo -2-naphthalene sulfonate, molecular formula is C16H14N4O3S, relative molecular mass is 354.37. It is a black crystalline powder, soluble in water and ethanol. Nigrosine has a series of unique characteristics and a wide range of applications.

First, nigrosine has strong dye properties. It can be dissolved in water and affinity with the fiber, so that the fiber is dyed. Aniline black has a good dyeing effect on a variety of fibers, including cotton, silk, wool and synthetic fibers. It is widely used in textile dyeing and printing in the dye industry, and can produce a variety of bright colors and good fastness dye products.

Secondly, nigrosine has good light resistance and temperature resistance. It can be exposed to the sun for a long time without fading, and it can also maintain its original color and brightness under high temperature conditions. Therefore, nigrosine is widely used as a dye in the manufacture of products requiring light resistance and temperature resistance, such as fluorescent lamps, vehicle seats, and exterior decorations.

In addition, nigrosine also has good alkali resistance. It is not easy to fade or change color under strong alkaline conditions, so it is often used as a colorant in the manufacture of cleaning products such as washing powder, soap and detergent. The alkali resistance of aniline black also allows it to be used in the manufacture of cosmetics and personal care products to add color to the product without being destroyed by common detergents.

In addition, nigrosine also has certain antioxidant properties. It can effectively absorb ultraviolet rays in the light and reduce the damage of ultraviolet rays to objects. As a result, nigrosine is widely used as a pigment and dye in the manufacture of protective articles such as sunglasses, sunscreens and sunscreen clothing.

In summary, nigrosine, as an organic synthetic dye, has many unique characteristics and a wide range of applications. It is widely used in textile dyeing, printing and pigment additives, and can also be used to manufacture products that are resistant to light, temperature, alkali and oxidation. With the progress of science and technology, the application prospect of nigrosine in more fields will be more broad.