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[Chemical Knowledge]：Choose the right black pigment: the difference between sulfide black and reactive black

Read： 940 Time：17months ago Source：Transform the World with Simplicity

In the painting, paint, plastic products, rubber products and other industries, black is a commonly used color. When choosing a black pigment, it is often faced with two options: sulfide black and reactive black. These two black pigments may be similar in appearance, but they have obvious differences in chemical properties, application areas and performance characteristics.

we look at black sulfide. Sulfide black is a black pigment made of sulfide pigments, commonly used sulfide black pigments are cuprous sulfide, iron sulfide and so on. Sulfur black is characterized by rich color, large color depth, good hiding and light resistance. Sulfur black has strong absorption ability to light, and can be used for night vision, high-end cameras and other optical equipment anti-reflection coating. Sulfide black has large pigment particles and a wide particle size distribution, so it is a good choice for delicate paintings and high-quality paint coatings.

Compared with sulfide black, reactive black is a black pigment made of activated carbon. Activated carbon has a great specific surface area and microporous structure, so the pigment particles of reactive black are finer and better dispersed. Reactive black is characterized by strong adsorption capacity, with good deodorization, purification and adsorption properties. Reactive black is widely used in ink, rubber, wall paint and other fields, especially for products that need adsorption and purification functions. Reactive black for pigment light adsorption characteristics require higher, suitable for advanced painting or need more delicate effect of the occasion.

in the choice of black pigment, according to the specific application needs to decide whether to use black sulfide or reactive black. If you have high requirements for the hiding power and light resistance of the pigment, and do not need to have deodorization and purification functions, then sulfide black will be an ideal choice. If you need to remove harmful gases or odors, and want the pigment particles to be more delicate and dispersed, then reactive black will be a better choice.

In short, choosing the right black pigment has an important impact on the quality and use of products in the fields of painting and paint. Understanding the difference between sulfide black and reactive black, and choosing according to specific application needs, is the key to ensure product quality and meet user needs. I hope the introduction of this article can help you in the choice of black paint.

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