Production according to Standards

Tantalum powder is a powder of metallic tantalum, presenting a gray powder with metallic luster, with a purity of 99.9%, cubic crystalline powder, insoluble in water, hardly soluble in inorganic acid, strong oxidation resistance, easy to be melted and decomposed by potassium pyrosulfate, conductive Large, the resistance is 30Ω at room temperature, showing superconducting properties. The dense oxide film formed on the surface of the tantalum powder has the properties of a unidirectional conductive valve metal. The prepared anode membrane has stable chemical properties (especially stable in acid electrolyte), high resistivity (7.5×1010Ω·cm), large dielectric constant (27.6), and low leakage current. It also has the advantages of wide operating temperature range (-80～200℃), high reliability, shock resistance and long service life.

Tantalum powder is mainly used in military equipment and high-tech fields. Such as missiles, space vehicles, televisions, electronic computers, etc. Used to manufacture high-quality electrolytic capacitors (the capacitance is more than 5 times larger than the ordinary capacitance of the same size.

化学成分%
 

Product	main ingredient   (%)≥	Impurity content (%)≤
Grade	Ta	Nb	N	Ni	Ti	W	C	H
Ta	99.96	0.003	0.001	0.002	0.0003	0.002	0.0022	0.0006
		Si	Mn	Cr	Fe	Mo	Cu	Al
		0.002	0.0003	0.0007	0.0028	0.001	0.0001	0.0001

Physical properties
 

Density	Melting point	Boiling point
g/cm3	℃	℃
16.6	2996	5425

Product specifications

10μm, 10.5μm, 20μm, 100 mesh, 150 mesh, 200 mesh, 300 mesh, 500 mesh
(products of different sizes and specifications can be customized according to customer needs)