Sulfide

Basic information

Chinese Name: cobalt disulfide powder

English Name: cobalt disulfide powder

Molecular formula: CoS₂

Molecular weight: 123.06

CAS#：12013-10-4

Density (20 ℃): 4.3 g / cm³

Appearance: black gray powder

GHS category: GHS 07 harmful

Chinese Name: molybdenum disulfide powder

English Name: molybdenum disulfide powder

Molecular formula: MoS₂

Molecular weight: 160.07

CAS#：1317-33-5

Melting point: 2375 ℃

Appearance: black powder form

GHS category: GHS 07 harmful

Storage method: store in a cool and ventilated warehouse. The storage temperature should not exceed 37°C. It should be stored separately from oxidants and edible chemicals, and should not be mixed. Keep the container sealed. Keep away from fire and heat sources. The warehouse must be equipped with lightning protection equipment. The exhaust system shall be equipped with grounding device for electrostatic discharge. Explosion proof lighting and ventilation are adopted.

Application of sulfide

Cobalt disulfide: with 3D valence electron shell structure, cobalt disulfide has pyrite structure and excellent optical, electrical and magnetic properties. High purity cobalt disulfide powder can be used as electrode material of thermal battery. On the one hand, the maximum internal temperature of thermal battery can reach 600 ℃ while the decomposition temperature of cobalt disulfide is greater than 650 ℃, which is conducive to long-life thermal battery;On the other hand, the resistivity of cobalt disulfide is 0.002 Ω· cm, which is conducive to the high current discharge of thermal battery.

Molybdenum disulfide: molybdenum sulfide products have good chemical and thermal stability.It is soluble in aqua regia, insoluble in water and dilute acid. It has no chemical reaction with general metal surface and does not corrode rubber materials.It can be used for the maintenance and lubrication of spare parts for processing and storage. It can form a dry lubricating film with high efficiency. It is a special material for reducing wear and friction technology.Its applications include:

(1) Application in lubricants: it can not only improve the large non seizure load of lubricating oil, but also reduce the wear and improve the friction performance of materials. The mechanism is that nano molybdenum disulfide is more likely to have friction chemical reaction than ordinary molybdenum disulfide, forming a lubricating film rich in sulfur and molybdenum, which plays an anti-wear role. The mechanism of reducing friction and wear of molybdenum disulfide is completely different from that of lubricating grease,It can be used in the field of high friction and maintenance, such as in the field of high friction and maintenance.

(2) Application in composite materials: PS / MoS₂ nanocomposites, molybdenum disulfide with certain conductivity is used as conductive filler to improve the electrical properties of polystyrene, so that it has a certain antistatic ability, but does not change its insulation.

(3) Nano molybdenum disulfide is a catalyst for coal liquefaction. Compared with general molybdenum disulfide, the number of atoms on the surface of nano molybdenum disulfide is significantly increased, resulting in more sulfur vacancies, which makes its catalytic activity and selectivity higher. It can be used as a high activity hydrogenation catalyst for heavy oil conversion and oil refining. Nano molybdenum disulfide is used as a catalyst in the methanation of carbon monoxide, It has high selectivity and reactivity.

Product advantages

The sulfides provided by Forsman mainly include cobalt disulfide powder and molybdenum disulfide powder. It can produce products with different particle sizes such as nanometer level, submicron level and micron level.The products that have been industrialized are 400 nm, 1 μm、1.5 μm、20 μm、50 μm. 100 mesh, can be provided in tonnage class.The production process can also be adjusted according to the demand to control the particle size and distribution width of sulfide, and the particle size can be customized by customers.The standard packaging specifications are 2 kg and 25 kg, which can be customized according to the customer's feeding quantity.

Product display

Fig. | 4206001 molybdenum disulfide 1 μm

Fig. | sulfide product packaging