Understanding Solvent Black 27:

What is it and how is it Used?

Solvent Black 27 is a synthetic dye that is commonly used in various industries, including textile, ink, and plastic manufacturing. This dye is known for its intense black color and excellent solubility in various solvents.

In this article, we will explore the chemical properties of Solvent Black 27, its various applications, the manufacturing process, safety and regulations, environmental impact, and future prospects for its use. By the end of this article, you will have a comprehensive understanding of Solvent Black 27 and its importance in various industries.

Molecular structure

Solvent Black 27 is also known as C.I. 26150, and its molecular formula is C32H22N6O. Its molecular weight is 510.56 g/mol, and it has a complex and aromatic molecular structure

Physical Properties

Solvent Black 27 is a black powder or granules with a faint odor. Its physical properties include:

 Melting point: Approximately 300-320 °C

 Boiling point: Around 600 °C



Density: 1.3 g/cm3

 Appearance: Black powder or granules

 Odor: Faint odor

Under typical usage and storage conditions, Solvent Black 27 is a compound that remains stable. However, it may decompose at high temperatures or under acidic or alkaline conditions. Its physical properties make it suitable for use in various industrial applications, such as textile, ink, and plastic manufacturing.

Solubility and compatibility with other chemicals

Solvent Black 27 is highly soluble in a range of organic solvents, including ethanol, methanol, acetone, chloroform, and ethyl acetate. Although it has low solubility in water, it can be made to disperse in aqueous solutions by using surfactants

Solvent Black 27 is compatible with a variety of other chemicals, including organic solvents, plasticizers, and resins. It can be used in combination with other dyes and pigments to produce a wide range of colors. The compatibility of Solvent Black 27 with different chemicals makes it a versatile dye that can be used in various industries, such as textile, ink, and plastic manufacturing.

However, its compatibility should be evaluated before use to avoid any unwanted reactions or effects.

Applications of Solvent Black 27

Solvent Black 27 has various applications in different industries, including:

 Textile Industry: Solvent Black 27 is widely used in the textile industry for dyeing synthetic fibers, such as polyester and nylon. Another application of it is in the coloring of leather and fur.

 Ink Industry: Solvent Black 27 is commonly used as a colorant in the production of solvent-based inks. It provides a deep black color with good light fastness and resistance to fading.

 Plastic Industry: Solvent Black 27 is used as a colorant in the production of plastics, such as polyethene, polypropylene, and PVC. It is also used to color plastic films, fibers, and sheets.

 Coatings Industry: Solvent Black 27 is used as a colorant in the production of coatings, such as automotive paints, industrial coatings, and wood stains. It provides a high degree of color intensity and good light fastness.

 Other industries: Solvent Black 27 is also used in the production of printing inks, carbon paper, and marker pens. It can also be used in analytical chemistry as a stain for proteins and nucleic acids.

Solvent Black 27 is a versatile dye that provides a deep black color with good solubility and compatibility with various solvents and chemicals.

The manufacturing process of Solvent Black 27

The manufacturing process of Solvent Black 27 involves several steps, including:

 Nitration: The starting material for Solvent Black 27 is naphthalene, which undergoes nitration using a mixture of nitric and sulfuric acids. This results in the formation of 1-nitro naphthalene.

 Reduction: The 1-nitro naphthalene is then reduced using a reducing agent, such as iron or zinc, to produce 1,4-diaminonaphthalene.

 Diazotization: The 1,4-diaminonaphthalene is then diazotized using nitrous acid to form the diazonium salt.

 Coupling: The diazonium salt is then coupled with a coupling component, such as N, Ndimethylaniline or N-phenyl-1-naphthylamine, to form Solvent Black 27.

 Purification: The resulting Solvent Black 27 dye is then purified through filtration and washing with solvents, such as water, ethanol, and acetone, to remove any impurities.

The manufacturing process of Solvent Black 27 is complex and requires careful control of reaction conditions and purification steps to ensure the production of high-quality dye with consistent properties. The final product is a black powder or granules that can be used in various applications in the textile, ink, plastic, and coatings industries.

Disposal methods and waste management

Disposal methods and waste management of Solvent Black 27 are important considerations to ensure the safety of human health and the environment. Solvent Black 27 is classified as hazardous waste and must be disposed of properly.

Here are some guidelines for the disposal of Solvent Black 27:

 Recycling: Solvent Black 27 can be recycled by recovering the dye from waste streams and reusing it in industrial processes. This can reduce the amount of waste generated and save resources.

 Incineration: Solvent Black 27 can be incinerated in a high-temperature facility that can break down the dye into non-toxic compounds. However, incineration may generate air pollution and should be conducted in compliance with local regulations.

 Landfill: Solvent Black 27 can be disposed of in a landfill that is designed to handle hazardous waste. However, this method poses a risk of contaminating soil and groundwater if not handled properly.

 Treatment: Solvent Black 27 can be treated using chemical or biological methods to break down the dye into non-toxic compounds. This method requires specialised equipment and should be conducted by professionals.

 Reuse: Solvent Black 27 can be reused in some applications after proper treatment and purification. This can reduce the amount of waste generated and save resources.

It is important to follow local regulations and guidelines for the disposal of Solvent Black 27. Improper disposal can result in environmental pollution and harm human health.

Why Choose Mansi Chemicals for Solvent Dyes

If you are looking for a reliable and trustworthy solvent dyes manufacturer, Mansi Chemicals is a great choice. With over 30 years of experience in the industry, they have established themselves as a leading manufacturer and exporter of solvent-soluble dyes in the world.

They are committed to providing exceptional quality and service, and their mission and vision reflect their dedication to sustainable growth and total customer confidence. Mansi Chemicals is an excellent option for anyone seeking high-quality solvent dyes, speedy delivery, and consistency in their products. Get in touch with solvent dye experts today.

Contact Details:

Website: https://www.mansichemicals.com/

Email: info@mansichemicals.com

Address: Plot No. 273/1, 2, Vinoba Bhave Nagar, Phase 2, GIDC Estate, Vatva, Ahmedabad, Gujarat 382445

Phone Number: 8037401665

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