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By lql | 10 February 2023 | 0 Comments

Is tantalum harmful to human body?

What is Molybdenum rod?
Tantalum, a metallic element, mainly exists in tantalite and coexists with niobium. Tantalum has moderate hardness and ductility and can be drawn into thin foil in filament form. Its thermal expansion coefficient is very small. Tantalum has excellent chemical properties and extremely high corrosion resistance. No matter under cold or hot conditions, it does not react to hydrochloric acid, concentrated nitric acid, and aqua regia. It can be used to make evaporation vessels, etc., and can also be used as electrodes, rectifiers, electrolysis, and capacitors of electron tubes. Medically, it is used to make thin sheets or thin lines to repair damaged tissues. Although the corrosion resistance of tantalum is very strong, its corrosion resistance is due to the formation of a stable Ta2O5 protective film on the surface. The activity of tantalum ranks fourth from the bottom among all metal elements. Tantalum is non-toxic to human body and belongs to heavy metal.
Tantalum is known as a "bio-friendly" metal, and pure tantalum has been used in orthopedics for more than 80 years. In 1802, Swedish chemist Ekeberg discovered tantalum in ore and named it Tantalus. In 1866, Rhodes reduced Na2TaF7 with sodium to obtain tantalum with high purity.
Advantages of Molybdenum rod
1) Mechanical properties
The elastic modulus of pure tantalum is quite different from that of bone tissue, which is not conducive to bone bonding. Porous tantalum, as a new orthopedic implant material, has interconnected internal structures and interweaves vertically and horizontally. It has high porosity, low elastic modulus, and high surface friction coefficient.
In terms of mechanical properties, porous tantalum is superior to solid tantalum and other commonly used medical metal materials. Its special pore structure makes its elastic modulus between the human cancellous bone and cortical bone, which is especially suitable for bone replacement, joint replacement, and human tissue filling. It can not only provide mechanical strength but also reduce stress shielding, which is beneficial to stress conduction and bone shaping. It also has excellent bone inductivity, which is widely used in orthopedics and has achieved an ideal curative effect.
Compared with other porous materials, the friction coefficient of porous tantalum is 0.80 and 0.74 relative to the cancellous bone and cortical bone, respectively, and the friction coefficient between porous tantalum and bone tissue is 40%~80% higher than that of traditional metal materials. This is helpful to combine with the host bone interface and enhance the stability at the initial stage of implantation.
2) Good corrosion resistance
At room temperature, tantalum will not react with hydrochloric acid, concentrated nitric acid, or even aqua regia, and ordinary inorganic salts will not corrode it. Its chemical properties are extremely stable, and it can resist corrosion of all inorganic and organic acids except hydrofluoric acid, sulfur trioxide, hot concentrated sulfuric acid, and alkali.
3) Good biocompatibility
Different from traditional medical metal materials, biological tissues will grow on tantalum after implantation for a period of time, just like real bones. So tantalum is also called "metallophilic".
4) Good bone bioactivity.
The interface of bioactive bone material is the hydroxyapatite layer instead of the connective tissue layer. Tantalum metal itself has good bone bioactivity and stable biological inertia, which makes it form a strong bone interface integration with bone.
Price of Molybdenum rod
Molybdenum rod particle size and purity will affect the price, and the purchase volume can also affect the cost of Molybdenum rod. A large amount of large amount will be lower. The price of Molybdenum rod can be found on our company's official website.
Molybdenum rod supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Molybdenum rod, nitride powder, Molybdenum rod, sulfide powder. If you are looking for high-quality and cost-effective Molybdenum rod, you are welcome to contact us or inquire any time.

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