Chromium Sulfide Cr2S3 Powder CAS 12018-22-3, 99.99%

Description of Chromium Sulfide Cr2S3 Powder  :

Chromium sulfide is an inorganic compound with the chemical formula CrS. It is solid with a dark green metallic luster, which exists in nature in a combined state, and no independent single crystal has been found. Chromium sulfide has a very high hardness and can reach 9 to 9.5 Mohs hardness, but it is also quite pliable and can be used to make a variety of industrial parts.

Chromium Sulfide has a very high melting point, having an estimated melting temperature of 1900 degrees C, which means it is stable even in high temperatures. In addition, chromium sulfide has strong corrosion resistance, can resist most acid and alkali corrosion, can exist stably in the air, and is not easy to oxidize.

In the electronics industry, chromium sulfide is widely used in the manufacture of high-temperature electronic components and semiconductor devices. Due to its superior electric conductivity as well as stability, chromium sulfide is an ideal material for the manufacture of high-temperature electronic components. At the same time, chromium sulfide can also be used as a catalyst carrier for the preparation of a variety of catalysts, which could significantly increase the effectiveness selectivity, which can dramatically increase selectivity and activity.

In the manufacturing process, chromium sulfide can be obtained by different preparation methods. The main methods are direct synthesis, vapor deposition, and ion exchange. The direct synthesis method is the direct reaction of chromium and sulfur at high temperatures to obtain chromium sulfide. The vapor deposition method is to produce chromium sulfide film by the reaction of chromium and sulfur vapor at low temperatures. The principle of ion exchange is to exchange chromium ions and sulfur ions in an aqueous solution to obtain chromium sulfide.

Chromium Sulfide Properties

AKA:  chromium trisulphide ;  Chromium sulfide chromium sulfide black powder, chromium sulfide (2.5:3)
 EINECS: 234-638-8
 Chromium sulfide chemical formula : Cr2S3
 Chromium sulfide Molecular weight : 200.17
 Chromium sulfide Information Brown, there are trigonal orthorhombic.
 Chromium sulfide Density (g/mL): 3.972 g/cm3 for the trigonometric system, and 3.922g/cm3 for the orthorhombic system.
 Chromium sulfide Solubility Insoluble in Water

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Application of Chromium Sulfide Cr2S3 Powder  :

Electronics and Semiconductors:

Chromium sulfide has a wide range of applications in electronics and semiconductors. Because of its outstanding electric conductivity as well as stability, chromium sulfide can be used in the manufacture of high-temperature electronic components and semiconductor devices. These components and devices usually need to operate under high temperatures and high voltage conditions, so materials with high stability and excellent electrical conductivity need to be used. The excellent properties of chromium sulfide make it an ideal material for the manufacture of these components and devices. For example, chromium sulfide can be used to make transistors, integrated circuits, and solar cells.

Catalyst field:

Chromium sulfide is also widely used in the field of catalysts. It can be used as a catalyst carrier to prepare a variety of catalysts. These catalysts are commonly used in petrochemical, fine chemical, and environmental treatment fields. By reacting with the appropriate active component of the catalyst, chromium sulfide can improve the activity and selectivity of the catalyst so as to achieve efficient chemical conversion. For example, in the petroleum cracking process, the use of chromium sulfide as a carrier catalyst can significantly improve the cracking efficiency and yield of petroleum.

Optical field:

Chromium sulfide has a wide application prospect in the optical field. It has a dark green metallic luster and can absorb specific wavelengths of light, so it can be used to make optical components and photoelectric sensors, among other things. These optical elements can be used in applications such as light filtering, light modulation, and light detection. In addition, chromium sulfide can also be used in optical devices such as high-temperature Windows and high-temperature lasers to achieve stable optical performance under high-temperature conditions.

Wear and corrosion resistance:

Chromium sulfide has good hardness and wear resistance, so it can be used to make wear-resistant parts and tools. These parts and tools need to work in high-temperature and highly corrosive environments, so they need to have high wear and corrosion resistance. The excellent properties of chromium sulfide make it an ideal material for the manufacture of these parts and tools. For example, chromium sulfide can be used in the manufacture of cutting tools, molds, and seals.

Coatings and Coatings:

Chromium sulfide can be used to manufacture high-temperature coatings and coatings that significantly improve the high temperature, corrosion, and wear resistance of the substrate. Due to its high hardness and high stability, chromium sulfide can be used as an important component of coatings and coatings. The coatings and coatings that are available can be used in a range of areas, including automotive, aerospace, machinery, and energy. For example, in the aerospace field, the use of chromium sulfide-based coatings can significantly improve the high-temperature resistance and wear resistance of aircraft and rocket engines.

Production Method of Chromium Sulfide Cr2S3 Powder  :

Direct synthesis method:

Direct synthesis is the direct reaction of chromium and sulfur at high temperatures to obtain chromium sulfide. Generally, the ground chromium powder and sulfur powder are mixed, put into the furnace, and heated to high temperatures. Argon gas is introduced as a protective gas to obtain chromium sulfide products. In order to control the particle size and composition of the product, the reaction temperature, reaction time, and the ratio of raw materials can be changed during the reaction process. The direct synthesis method has the advantages of simple equipment and convenient operation, but the reaction temperature is high, and it will cause some pollution to the environment.

Ion exchange method:

The ion exchange method is a method to obtain chromium sulfide by exchange reaction between chromium ion and sulfur ion in aqueous solution. The chromium salt solution and the sulfide solution are heated to boiling, respectively. Then, the two solutions are mixed to undergo an ion exchange reaction to produce chromium sulfide precipitation. Chromium sulfide products are obtained by filtration, washing, and drying. Ion exchange has advantages due to its high purity and small particle size, but the reaction conditions are harsh, and a lot of reagents and energy are needed, and the cost is high.

Vapor deposition method:

Vapor deposition is a method of forming chromium sulfide film by the reaction of chromium and sulfur vapor at low temperatures. After the chromium vapor and sulfur vapor are mixed, they are put into the reactor, and the biochemical reaction is carried out at low temperatures to produce chromium sulfide film. The thickness and composition of the film can be controlled by controlling parameters such as reaction temperature, gas flow, and deposition time. The vapor deposition method has the advantages of high product purity and a smooth surface. Still, the reaction conditions are difficult to control, and a lot of gas and energy are needed, so the cost is high.

Storage Conditions of Chromium Sulfide, Cr2S3 powder:

Chromium-Sulfide Powder Cr2S3 will not perform well if it is damp. It should be packed in vacuum and kept in a room that is cool and dry. Cr2S3 Powder should not be exposed to stress.

Shipping & Packing of Chromium Sulfide, Cr2S3 powder:
The packaging is dependent on the amount of Cr2S3 powder.
Chromium sulfide Cr2S3 powder packing: vacuum packaging, 100g/bag, 500g/bag or 1kg/bag. 25kg/barrel or your request.
As soon as you receive payment, the Chromium Sulfide powder Cr2S3 can be shipped by air or sea.

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