The difference between sulfide black and reactive black

In the chemical industry, sulfide black and reactive black, as two common black solid materials, are commonly used in water treatment, catalyst manufacturing, environmental protection engineering and other fields. Due to the significant differences in chemical properties, physical properties and application areas, they are selected for different objects in practical applications. This article will analyze the differences between sulfide black and reactive black in detail in terms of definition, physical and chemical properties, and industrial applications to help readers better understand the characteristics of these two materials and their application scenarios.

1. what is black sulfide?

Black sulfide black (black zenith) is a black solid particulate material, mainly composed of carbon and sulfur elements, formed by chemical reaction. Its preparation process usually involves a vulcanization reaction and is often used in water treatment and sewage treatment as a precipitant and decolorizing agent. The particle size of sulfide black is usually in the micron level, and the surface is covered with a dense sulfide film to make it have good adsorption.

The main characteristics of black sulfide include:

1. physical characteristics: The particle size is uniform, spherical or elliptical, and the surface has a certain roughness.
2. CHEMICAL CHARACTERISTICS: Mainly composed of carbon and sulfur, with a certain degree of water solubility. 3. High surface activity, suitable for decolorization and precipitation.

The main application areas of sulfide black include:

1. water treatment: Used to remove chroma and sulfide in water.
2. Sewage treatment: As a precipitant for solid-liquid separation.
3. Environmental protection engineering for air desulfurization and noise control.

2. what is Reactive Black?

Reactive black usually refers to a carbon-based material with a carbon content of more than 99%, including carbon black, nano-carbon black, etc. Carbon black is a black solid made from petroleum coke through high temperature carbonization, reduction and other processes. The particles of the active black are generally nano-scale and have excellent catalytic performance and high mechanical strength.

The main characteristics of Reactive Black include:

1. physical characteristics: The particle size is mostly nano-scale, showing a porous structure.
2. CHEMICAL CHARACTERISTICS: High carbon content, inert, high temperature resistance.
3. surface characteristics: The surface has a high specific surface area and activation energy.

The main application areas of Reactive Black include:

1. catalyst Manufacturing: Used in catalysis in chemical synthesis.
2. electronic industry: As an electronic material, used in semiconductors and display devices.
3. Materials Science: Used in the manufacture of nanomaterials and functional materials.

Difference Analysis of 3. Sulfide Black and Reactive Black

from the definition and characteristics, the main differences between sulfide black and reactive black can be summarized as follows:

1. constitutive elements and chemical characteristics:

• black sulfide is mainly composed of carbon and sulfur, with a certain degree of water solubility.
• Reactive black mainly carbon, carbon content is very high, usually inert, high temperature resistant.

1. Physical characteristics:

• black sulfide particle size is usually in the micron scale, with sulfide film on the surface.
• The particles of active black are mostly nano-scale, with porous structure and high specific surface area.

1. Application areas:

• sulfur black is mainly used in water treatment, sewage treatment and environmental protection engineering.
• Active black is mainly used in catalyst manufacturing, electronics industry and materials science.

1. Particle characteristics:

• sulfide black particles uniform, suitable for precipitation and decolorization.
• Active black particles are mostly nano-scale, with excellent catalytic and mechanical properties.

The fourth part: the basis for choosing sulfide black or reactive black

in practical applications, the choice of using sulfide black or reactive black needs to be determined according to specific needs:

1. decolorization and sedimentation requirements: If the goal is to remove pigments and sulfides from water or solutions, sulfide black is a better choice.
2. Catalytic and mechanical strength requirements: If a material with high catalytic performance and mechanical strength is required, reactive black is more suitable.
3. Cost and performance trade-off: Reactive black may have higher cost in some aspects due to its particle characteristics, but its performance advantages in some fields cannot be ignored.

Summary

as two different black solid materials, sulfide black and reactive black have their own unique advantages and application scenarios in industrial applications. Sulfide black is widely used in water treatment and environmental protection because of its good physical and chemical properties, while active black is widely used in catalyst manufacturing and materials science because of its high specific surface area and catalytic performance. Understanding the differences and characteristics of these two materials will help chemical industry personnel choose the right materials according to specific needs, thereby improving production efficiency and product performance.