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- Sodium (Na) Metallic Pieces Synonyms:
Sodium metallic pieces (in oil), Na, sodium metal dispersion, sodium metal ingot, sodium metal breakseal ampoule, sodium metal dispersion, sodium metal, sodium, CAS# 7440-23-5,
Chemical Name: Sodium
Chemical Formula: Na
a) The sixth and most abundant element on earth, sodium is also abundant in the sun and stars. It is a soft, silvery-white metal that appears wax-like at room temperature and is brittle when cold. Sodium, extremely reactive, is always found in combination with other elements.
b) It can improve the structure of some allows, purify molten metals and descale certain metals. Sodium has excellent electrical conductivity and is an important heat transfer agent.
99.95%
Pieces
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Atomic Number
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11
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Molecular Weight (g/mol.)
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22.989768
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Apparent Density (g/cm3)
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.97
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Young's Modulus (GPa)
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10
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Specific Heat @25°C (cal/g-°C)
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.295
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Melting Point (°C)
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97.8
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Boiling Point (°C)
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892
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Thermal Conductivity @20°C (cal/s-cm°C)
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.334
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Mohs Hardness @20°C
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0.5
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Surface Area (m2/g)
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pH
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Magnetic Ordering
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paramagnetic
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Electronegativity (Pauling scale)
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0.93
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Crystallography
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body-centered cubic
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Sodium in its metallic form can be used to refine some reactive metals, such as zirconium and potassium, from their compounds. This alkali metal as the Na+ ion is vital to animal life. Other uses:
- In certain alloys to improve their structure.
- In soap, in combination with fatty acids. Sodium soaps are harder (higher melting) soaps than potassium soaps
- To descale metal (make its surface smooth).
- To purify molten metals.
- In sodium vapor lamps, an efficient means of producing light from electricity (see the picture), often used for street lighting in cities. Low-pressure sodium lamps give a distinctive yellow-orange light which consists primarily of the twin sodium D lines. High-pressure sodium lamps give a more natural peach-colored light, composed of wavelengths spread much more widely across the spectrum.
- As a heat transfer fluid in some types of nuclear reactors and inside the hollow valves of high-performance internal combustion engines.
- Hot News!!! Sodium-ion batteries have significant potential because sodium metal is more readily available than lithium metal and less expensive. Source: MIT in December 2009
Drums
Listed. For further information please call the E.P.A. at 202.554.1404
CAS# 7440-23-5
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