About Nickel Ni powder:
Nickel powder is a gray or gray-black powder with the chemical formula Ni. It is conductive, insoluble in water, ammonia, and concentrated nitric acid. It can reduce nitric acid and finely pulverize hydrochloric acid and sulfuric acid.
Nickel powder is divided into carbonyl nickel powder, which is mainly used for coatings and plastics as conductive pigments to shield electromagnetic drying involving radiofrequency coupling, as a variety of high-gloss decorative paints and plastics, instead of aluminum powder as anti-corrosion paint in water-based systems, etc., fine particle spherical Nickel powder can be used for conductive inks.
Metallic pigments with metallic nickel as the main component, including nickel powder and flake nickel powder. The former uses distilled and purified carbonyl nickel [Ni(CO)4] vapor to decompose. By controlling the temperature, carbon monoxide is used instead of gas additives. Nickel particles of appropriate size are formed in the presence of reagents (oxygen and nitrogen), and then carbon monoxide is flushed with carbon dioxide gas and the surface oxygen content of the particles is controlled to 0.065%; usually, high-purity nickel carbonyl powder is used in the presence of a suitable volume and liquid medium Next, use steel balls to grind in a ball mill to form flakes of appropriate thickness.
Nickel is a chemical element, its symbol is Ni, and its atomic number is 28. It is a silvery-white shiny metal with a light golden color. Nickel is a transition metal, hard and ductile. The powdered pure nickel powder has the largest reaction surface area and can exhibit significant chemical activity. However, under standard conditions, larger nickel flakes react more slowly with air. This is because an oxide layer is formed on the surface and prevents further corrosion (passivation). Even so, only a very small amount of pure natural nickel can be found in the earth’s crust, usually in ultramafic rocks and inside larger nickel-iron meteorites that are not exposed to oxygen outside the earth’s atmosphere.
Nickel is one of the four elements that are ferromagnetic at room temperature (the other elements are iron, cobalt, and grams). Alnico permanent magnets based in part on nickel have medium strength between iron-based permanent magnets and rare earth magnets. In modern times, metals have value mainly in alloys. Stainless steel accounts for approximately 68% of the world’s total output. Another 10% is used for nickel-based and copper-based alloys, 7% is used for alloy steel, 3% is used for casting, 9% is used for electroplating, and 4% is used for other applications, including the fast-growing battery industry. In the vehicle. As a compound, nickel has many special chemical manufacturing applications, such as catalysts for hydrogenation, cathodes for batteries, pigments and metal surface treatments. Nickel is an essential nutrient for certain microorganisms and plants that have enzymes with nickel as the active site. Feel free to send an inquiry to get the latest price if you would like to buy Nickel Ni powder in bulk.
Features of Nickel Ni powder CAS 7440-02-0:
English name: nickel powder; nickel flak powder
Molecular formula: Ni
Properties: Gray irregular powder, easy to oxidize in moist air.
How is Nickel Ni powder produced?
Nickel powder can be produced in a few different ways and the process chosen depends on the size of particles and morphology required. One of the most common ways to make nickel powder is the nickel carbonyl process. This process, also known as the Mond process, is used to produce powders with controlled morphology and tolerances. The nickel carbonyl process is also used to refine impure nickel. Solid nickel reacts with carbon monoxide to form nickel carbonyl gas. The gaseous mixture is further heated resulting in decomposition of the metal-carbonyl complex to produce pure nickel metal and carbon monoxide gas. Fine and extra fine nickel powders can be produced by thermal shock decomposition.
Another method to produce nickel powders is using electrolysis or electrowinning. This process involves passing an electrical current through an electrolyte containing dissolved nickel metal and allowing the nickel powder to form on the cathode. Powders formed in this way are known as electrolytic metal powders and are often very dendritic with complex morphology and hence very conductive. The particle size and morphology can be controlled by varying certain operating parameters and using additives that affect the deposition of the powder onto the cathode.
Applications of Nickel Ni powder:
Nickel powder is a black shiny metal powder, which is hard and malleable. In the past few decades, ultra-fine powders and nano-powders due to their special characteristics (such as magnetism, heat resistance, chemical activity, high surface area, better reactivity, enhanced hardness, semiconductor conditions and high chemical activity) And it has been improved. Get a lot of attention. Worldwide, pure nickel is also widely used in coinage systems, sonar and ultrasonic equipment.
There are many nickel-based alloys, such as nickel-based superalloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys, nickel-based shape memory alloys and hydrogen storage alloys. These alloys are used in the aerospace industry, automobiles, electronics, shipbuilding and many other fields. Nickel powder is used in powder metallurgy alloys.
Introduction of nickel powder for diamond tools (metal-based alloy powder): Metal belt is one of the key factors that determine the quality of diamond saw blades, cutter heads, grinding wheels, thin-wall drill bits and other products. After determining the diamond, the quality of the metal bond is the decisive factor. Both cobalt powder and nickel powder can be used as the main binder, but the price of cobalt powder is higher.
In diamond tools, the matrix refers to the packaging, the metal sintered body of diamond, the matrix is usually composed of a variety of metal elements, mainly using low melting point metal powder as a binder, such as nickel powder.
Most of the matrix bonding materials for diamond thin-wall drill bits and cutting discs used in the construction industry, oil and gas and other mining diamond drill bits, and carbide drill bits use nickel powder.
For metal material processing, most of the tools used for the mechanical grinding of automobiles and motorcycles use diamond abrasives, and most of the matrix materials also use nickel powder. Including carbonyl nickel powder, electrolytic nickel powder and reduced nickel powder.
Storage conditions of Nickel Ni powder:
This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.
Packing & Shipping of Nickel Ni powder:
We have many different kinds of packing which depends on the nickel Ni powder quantity.
Nickel Ni powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Nickel Ni powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.
Nickel Ni Powder Properties
|Other Names||Nickel particles, Nickel microparticles, Nickel micropowder, Nickel micro powder,
Nickel micron powder, Nickel submicron powder, Nickel sub-micron powder.
|Appearance||Gray irregular powder, easy to oxidize in moist air.|
|Melting Point||1455 °C|
|Solubility in water||N/A|
|Boling point||2732 °C|
|Specific Heat||0.44 kJ/kg·K|
|Thermal Conductivity||90.9 W·m-1·K-1|
|Thermal Expansion||13.4 µm·m-1·K-1 (25 °C)|
|Young’s Modulus||200 GPa|
Nickel Ni Powder Health & Safety Information
|Flashing point||Not applicable|
|Transport Information||UN3089 – class 4.1 – PG 2 – EHS – Metal powders, flammable, n.o.s., Hi:A,S|