Nickel (Ni)a transition metalsA silvery-white

lustrous metal with a slight golden tinge

The fifth most abundant element in the earth

Common in the crust

Nickel (Ni)

Atomic number 28

Atomic mass 58.71 g.mol -1

Density 8.9 g.cm-3 at 20°C

Melting point 1453 °C

Boiling point 2913 °C

Discovered by Alex Constedt 1751

Applications 85% of metallic nickel used in combination with

other metals alloys

1. Used in gas turbines and rocket engines

- easy to work and can be drawn into wire - resist corrosion even at high temperatures

Nickel (Ni)

gas turbines

rocket engines

2. Used for propeller shaft in boats and desalination plants- Monel: an alloy of nickel and copper- Hard, can resist the corrosion by sea water

3. Used to make stainless steel- used very widely in the home, in architecture,- in health care, in food processing and - throughout industry.

Nickel (Ni)

Monel

Stainless steel cutlery

4. Used to make Nickel-cadmium batterySmall NiCd dry cells are used for portable electronics and toys rechargeable batteryoften using cells manufactured in the same sizes as primary cells

at the cadmium electrode

at the nickel electrode

The net reaction during discharge is

Nickel-cadmium battery

Nickel (Ni)

5. Use as catalystAlkenes can react with hydrogen at high

temperature (150 ℃) to produce alkanes. catalytic hydrogenationUse to make margarine from animal oils and

vegetable oils

6. Used for making nickel steels added to give increased strength and

toughness over that obtained with the ordinary rolled structural steel

adapted for case-hardening

Nickel (Ni)

7. Used in nickel-copper alloys and nickel silver

nickel-copper alloys: - improves strength and corrosion resistance - good ductility is retained - excellent resistance to marine corrosion and

biofouling Nickel silver - used in better-quality keys, making musical

instruments (e.g. cymbals, saxophones), production of coins.

- marine fittings and plumbing fixtures for its corrosion resistance, and heating

Nickel (Ni)

Nickel silver coins

8. Used to make malleable nickel, nickel clad, Inconel and other superalloys

Inconel: nickel-chromium-based superalloys common in gas turbine blades, seals, and

combustors, in the boilers of waste incinerators etc.

9. Used in plating commonly used in engineering coating

applications where wear resistance, hardness and corrosion protection are required

10. Use for nickel cast irons Used in cast iron bridges, buildings, textile mills

Nickel (Ni)

11. Used in heat and electric resistance alloys e.g. Nichrome

widely used in electric heating elements, such as in hair dryers, electric ovens, soldering iron, toasters, and even electronic cigarettes

12. Used for nickel brasses and bronzes it is composed of 70% copper, 24.5% zinc and

5.5% nickel used to make pound coins in the pound sterling currency

Nickel (Ni)

Nickel compounds1. Nickel (II) sulphate useful for electroplating nickel

2. Nickel (II) chloride produced by dissolving nickel residues in

hydrochloric acid

3. Nickel(III) oxide used as the cathode in many rechargeable

batteries, e.g. nickel-cadmium

Nickel (Ni)