What is nickel? Here are some nickel knowledge that can help us know about nickel.

Nickel is one chemical element and its chemical symbol is Ni. Nickel has magnetic performance and belongs to transition metal.

Nickel was found by Axel Cronstedt in 1751, Sweden. Nickel mineral looks like copper mine, however, nickel mineral is not able to refine copper.

Nickel is the most common sensitizing metal and about 20% of the people are allergic to nickel ions. The number of female patients is more than that of male patients. Contact with the human body, the nickel ion can penetrate into the skin through the skin pores and sebaceous glands, thus causing skin allergic inflammation, the clinical manifestations are dermatitis and eczema. The friction between skin and the pressure, the sweat, the atmosphere and the humidity will increase the symptoms of nickel allergy.

As for nickel applications, nickel is widely used to produce coins, nickel-cadmium battery and alloy steels, like stainless steel and others.

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