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Technical characteristics

The standard applies to cobalt powder made by electrolytic method and intended for the production of magnets and special products by powder metallurgy methods. Cobalt powder must be manufactured in accordance with the requirements of this standard according to the technological regulations approved in accordance with the established procedure. Powdered cobalt belongs to the 2nd class of hazard. Under normal conditions, it is not flammable, fire and explosion-proof. Inflammation temperature is 370 °C.

Chemical composition

Mass fraction of moisture and oxygen in the powder shall not exceed: moisture - 0,15%; oxygen - 0,3%.
The size of powder particles shall be less than 71 microns. The presence of powder particles larger than 71 microns in an amount not exceeding 4% of the batch mass is allowed.
The mass fraction of powder particles smaller than 45 microns should be not less than 30% of the batch weight.
Bulk density of the powder shall be established upon the request of the consumer. Evek GmbH offers to buy metal powders. The price is from the manufacturer. The supplier provides product delivery to any location.

Toxicity

Maximum allowable concentration of cobalt powder in the air is 0,5 ^mg/m3 and maximum allowable concentration of cobalt ions in water is 1,0 ^mg/dm3. The content of cobalt in water is determined by photometric method or other methods not inferior in accuracy to photometric method. Cobalt powder does not produce toxic derivatives in air and sewage in the presence of other substances or factors.

Packaging

According to GOST 9721-79 cobalt powder is packed into metal cans (GOST 6128) or polyethylene bottles with capacity not more than 10 ^dm3.

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