Product Name: Five copper silicide (Cu5Si) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: high hardness, high density, excellent conductivity, thermal conductivity, ductility, corrosion resistance, wear resistance 
Application: Electronic components, optoelectronic devices, aerospace, materials science, thermal management and other fields

Name: Five copper monosilicide 
English name: Copper silk 
Crystal: polyhedral shape 
Molecular formula: Cu5Si 
CAS Number: 12159-07-8 
EINECS Number: 235-286-8 
Color/Appearance: Grey Powder 
Molecular weight: 345.81 
Melting point: 825 ℃ 
Density: 7.7-7.8 
Molecular weight: 345.82 
EINECS：235-286-8 
Properties of copper silicide: 
Copper silicide (Cu5Si), also known as pentacopper silicide, is a binary silicon compound of copper and a metal intermetallic compound. This means that its properties are between ionic compounds and alloys. This solid crystalline material is a silver solid that is insoluble in water. Has excellent conductivity, thermal conductivity, ductility, corrosion resistance, and wear resistance. 
The use of copper silicide: 
Copper silicide thin films can be used to passivate copper based chips, suppress their diffusion and electron migration, and serve as diffusion barriers. Copper silicide can also be used for direct synthesis of organic silicon compounds in industry. In the reaction, copper silicide can silicify chloromethane. For example, industrially useful dimethyldichlorosilane can be produced. It can also be used in various technological fields such as silicate electronics industry, electric vacuum devices, integrated circuits, ships, automobiles, light industry, aerospace, etc. 
Packaging and storage: 
This product is packaged in an inert gas filled plastic bag, sealed and stored in a dry and cool environment. It should not be exposed to air to prevent moisture and oxidation aggregation, which may affect dispersion performance and usage effectiveness