Nano Hafnium Hf Powder CAS 7440-58-6

(Nano Hafnium Hf Powder CAS 7440-58-6)

About Nano Hafnium Hf Powder

Hafnium is a shiny, silvery, malleable metal. It is resistant to corrosion because it forms a tough, impenetrable oxide film on its surface. The metal is not affected by bases and acids, except hydrofluoric acids. Hafnium is difficult to separate from its fourth group partner zirconium because the two elements have the same atomic size. Hafnium powder is a light gray dry metallic powder. The dry powder reacts with water to produce hydrogen, a flammable gas. The reaction may produce enough heat to ignite hydrogen.

Found in all zirconium-bearing minerals, hafnium is a ductile metal with a bright silvery luster. It is powerful and extremely resistant to corrosion. Zirconium and hafnium have almost identical chemical properties (except that hafnium is twice as dense as zirconium), making it difficult to separate. The properties of hafnium are significantly affected by zirconium impurities. TRUNNANO is a trusted global Nano Hafnium Hf Powder supplier. Feel free to send an inquiry about the latest price of Hafnium at any time.

Appearance and description of hafnium powder

High purity hafnium is also known as crystalline hafnium, it is a silver metal crystal with a metallic luster.

hafnium powder MF: Hf

hafnium powder Molecular weight: 178.49

hafnium powder Density: 13.31 g/cm3

hafnium powder Melting point:  about 2227 ℃

hafnium powder Boiling point: about 4602 ℃

Product properties of hafnium powder

It ensures good anti-corrosive property, it is not susceptible to the erosion of acid and alkali solution, soluble in hydrofluoric acid to form a fluoride complex. At high temperature, hafnium can be directly combined with oxygen, nitrogen and other gases to form the oxide and nitride; Hafnium is stable in the air, powdered hafnium is easy to burn; the capture cross-section of hafnium thermal neutron is large, hafnium with prominent nuclear power, it is indispensable rare materials to develop the atomic energy industry.

How is Nano Hafnium Hf Powder produced?

The invention relates to a superfine high purity hafnium powder and a preparation method thereof.

Preparation includes:

1..The hafnium oxide powder and reducing agent powder with a molar ratio of 1:1 to 1:6 were mixed evenly and packed into the crucible.

2. Put the crucible into the reaction tank, cover it and vacuum it, then fill it with argon for washing, heating and reduction, and then conduct constant temperature and insulation reduction;

3. Vacuum is then pumped, and then argon is added to cool it under the protection of argon;

4 washing: the first use of pickling, and then use deionized water washing, the product will be screened, drying, that is, ultra-fine high purity hafnium powder. 

Applications of Nano Hafnium Hf Powder

Hafnium powder is mainly used in the production of hafnium alloy materials, because hafnium has rapid heat absorption and exothermal properties (1 times faster than zirconium and titanium), and can be made into the structural materials of jet engines and missiles.

The hafnium refractory makes it useful as a turbojet aircraft blade for freezing point pressure jet engines. Hafnium powder can also be used in the manufacture of valves, nozzles and other high-temperature components.

Most of the hafnium produced is used to make control rods for nuclear reactors.

Hafnium is used in the manufacture of iron, titanium, niobium, tantalum, and other metal alloys. One alloy used in liquid rocket thruster nozzles, such as the main engine of the Apollo lunar module, is C103, which consists of 89 percent niobium, 10 percent hafnium and 1 percent titanium.

Because of its heat resistance and affinity to oxygen and nitrogen, hafnium is a good scavenger of oxygen and nitrogen in inflatable lamps and incandescent lamps. Hafnium is also used as an electrode for plasma cutting because of its ability to release electrons into the air.

Storage Condition of Hafnium Hf Powder

The damp reunion will affect Hf powder dispersion performance and using effects, therefore, Hafnium Hf Powder should be sealed in vacuum packing and stored in cool and dry room, the Hafnium Hf Powder can not be exposure to air. In addition, the Hf powder should be avoided under stress.

Company Profile

Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.If you are looking for high-quality Hafnium Hf Powder, please feel free to contact us or click on the needed products to send an inquiry. 

Packing&Shipment of Hafnium Hf Powder

We have many different kinds of packing which depend on the Hafnium Hf Powder quantity.

Hafnium Hf Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.

Hafnium Hf Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Payment Methods of Hafnium Hf Powder

L/C, T/T, Western Union, Paypal, Credit Card etc.

Q1

Hafnium and zirconium properties are similar？

Hafnium's chemical properties are similar to zirconium, with good corrosion resistance, not easily eroded by general acid and alkali aqueous solutions, and easily dissolved in hydrofluoric acid to form fluorine complexes. At high temperatures, hafnium can also be directly compounds with oxygen, nitrogen and other gases to form oxides and nitrides.

Q2

What are the applications of hafnium powder?

Hafnium is useful because it tends to emit electrons (e.g., as a filament in incandescent lamps). It is used as a cathode for X-ray tubes, and hafnium alloys and tungsten or molybdenum are used as electrodes for high-voltage discharge tubes. Commonly used as the cathode of X-rays and tungsten filament manufacturing industry. Pure hafnium is malleable, easy to process, resistant to high temperatures and corrosion, and important for the atomic energy industry. The large hafnium thermal neutron capture cross-section is the ideal absorber and can be used as atomic reactor control rods and protection devices. Hafnium powder can be used as a rocket fuel.

Q3

How hafnium powder is prepared？

Hafnium powder is a metal powder made from hafnium, which is usually produced from a hafnium sponge by a hydrogenation and dehydrogenation process.

Q4

What are the properties of hafnium powder?

Hafnium powder can easily generate oxide film when heated in air and has strong resistance to acids and alkalis, but should avoid contact with strong acids, strong oxidizing agents, oxygen, halogens, sulfur, phosphorus, and other substances. Hafnium powder can be dissolved in concentrated sulfuric acid, aqua regia, and hydrofluoric acid but does not interact with water, dilute acids, and alkalis.

Q5

Hazardous properties of hafnium powder

Hafnium powder burns in air, nitrogen, or carbon dioxide; can form explosive mixtures when mixed with air; will ignite spontaneously if stirred; and most oxidizing agents such as chlorate, nitrate, perchlorate, or permanganate form highly sensitive explosive mixtures.