High-purity cobalt

The purity level of the ordinary cobalt available in the market is 3N (99.9%), but our company handles high-purity cobalt with a purity level of 4N5up or higher (99.995% or higher).
Our high-purity cobalt was developed based on the electrolytic and purification technologies, that have been developed over many years through the manufacturing of electrolytic manganese dioxide (EMD) and high-purity metallic chromium. The purity level of our cobalt is 4N5up.

Plate

Ingot

Products including high-purity cobalt

Material for shaping semiconductor films

High-purity cobalt (table of components)

	Grade	4N5
	Chemical component	Specs	Analysis example
Metal	Co	99.995%	99.998%
Metal	Co	Min.	99.998%
Impurity	Na	1 ppm	< 0.5 ppm
	Na	Max.	< 0.5 ppm
	Al	1 ppm	< 0.4 ppm
	Al	Max.	< 0.4 ppm
	K	1 ppm	< 1 ppm
	K	Max.	< 1 ppm
	Cr	1 ppm	< 0.3 ppm
	Cr	Max.	< 0.3 ppm
	Mn	1 ppm	< 0.2 ppm
	Mn	Max.	< 0.2 ppm
	Fe	2 ppm	< 0.6 ppm
	Fe	Max.	< 0.6 ppm
	Ni	10 ppm	2.2 ppm
	Ni	Max.	2.2 ppm
	Cu	2 ppm	0.8 ppm
	Cu	Max.	0.8 ppm
	Pb	1 ppm	< 0.1 ppm
	Pb	Max.	< 0.1 ppm
Other	C	50 ppm	20 ppm
	C	Max.	20 ppm
	S	10 ppm	< 10 ppm
	S	Max.	< 10 ppm
	O	100 ppm	30 ppm
	O	Max.	30 ppm
	N	10 ppm	10 ppm
	N	Max.	10 ppm
Shape and size		Plate (size: ASK)
Shape and size		Ingot

For inquiries about high-purity cobalt

Ferroalloy Division
Metal Sales Group

Products and services related to high-purity metal

Metallic chromium

To the page of products and services