Properties and uses of graphite and diamond
Properties and uses of graphite and diamond
Properties of graphite
1. Graphite appears dark grey.
2. It is soft and slippery.
3. It conducts electricity.
4. Melting point of graphite is 3700°C.
5. Density of graphite is 2.3 g/cm3.
Uses of graphite
1. Graphite is used as electrode in batteries.
2. It is used as a lubricant in the fast moving machinery.
3. It is used in making 'pencil lead'.
4. Graphite is used as neutron absorber (moderator) in nuclear reactors.
5. It is used as a pigment in paints.
Properties of diamond
1. Diamond is colourless and transparent. Polished diamond reflect and refract light and so it sparkles in light.
2. Density of diamond is 3.5 g/cm3.
3. It is the hardest known natural substance.
4. It does not conduct electricity.
Uses of diamond
1. Diamond is used in jewellery since it sparkles in light.
2. Black diamond is used for cutting glass, sawing marbles and drilling rocks.
3. Diamond is used in high precision thermometers.
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