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This soft, silvery alkali metal is the sixth most abundant element in the earth's crust. It has similar properties to the other alkali metals including low melting point, very high chemical reactivity especially with water, low density and high thermal conductivity. This last property is responsible for its application in heat exchangers. Sodium's chemistry also makes it useful in the production of polymers, and even other metals. In organic chemistry, sodium is the starting material for the production of intense reducing agents such as sodium hydride and borohydride. Its most prevalent compound is sodium chloride (NaCl), which is commonly known as salt.

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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20.0 °C

0.97 g/cm³

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Elastic modulus

20.0 °C

10 GPa

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Hardness, Brinell

20.0 °C

0.69 [-]

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Poisson's ratio

20.0 °C

0.26 [-]

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Melting point

97.72 °C

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Specific heat capacity

20.0 °C

1230 J/(kg·K)

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Thermal conductivity

20.0 °C

140 W/(m·K)

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Electrical resistivity

20.0 °C

4.6E-8 Ω·m

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