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natrium    
n. 钠

钠

Sodium \So"di*um\, n. [NL., fr.E. soda.] (Chem.)
A common metallic element of the alkali group, in nature
always occuring combined, as in common salt, in albite, etc.
It is isolated as a soft, waxy, white, unstable metal, so
highly reactive that it combines violently with water, and to
be preserved must be kept under petroleum or some similar
liquid. Sodium is used combined in many salts, in the free
state as a reducer, and as a means of obtaining other metals
(as magnesium and aluminium) is an important commercial
product. Symbol Na ({Natrium}). Atomic weight 22.990.
Specific gravity 0.97.
[1913 Webster]

{Sodium amalgam}, an alloy of sodium and mercury, usually
produced as a gray metallic crystalline substance, which
is used as a reducing agent, and otherwise.

{Sodium carbonate}, a white crystalline substance,
{Na2CO3.10H2O}, having a cooling alkaline taste, found in
the ashes of many plants, and produced artifically in
large quantities from common salt. It is used in making
soap, glass, paper, etc., and as alkaline agent in many
chemical industries. Called also {sal soda}, {washing
soda}, or {soda}. Cf. {Sodium bicarbonate}, and {Trona}.


{Sodium chloride}, common, or table, salt, {NaCl}.

{Sodium hydroxide}, a white opaque brittle solid, {NaOH},
having a fibrous structure, produced by the action of
quicklime, or of calcium hydrate (milk of lime), on sodium
carbonate. It is a strong alkali, and is used in the
manufacture of soap, in making wood pulp for paper, etc.
Called also {sodium hydrate}, and {caustic soda}. By
extension, a solution of sodium hydroxide.
[1913 Webster]


Natrium \Na"tri*um\, n. [NL. See {Natron}.] (Chem.)
The technical name for {sodium}.
[1913 Webster]


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  • Naturium Skincare
    Naturium: Clinically-effective, potent clean skincare formulas that work
  • TerraPower Natrium | Advanced Nuclear Energy
    Natrium reactors are not pressurized like existing plants and use sodium, instead of water, as a coolant The reactor operates at a temperatures greater than 350 degrees Celsius (the equivalent of 662 degrees Fahrenheit) and far below the boiling point of sodium
  • Sodium - Wikipedia
    Sodium Sodium is a chemical element; it has symbol Na (from Neo-Latin natrium) and atomic number 11 It is a soft, silvery-white, highly reactive metal Sodium is an alkali metal, being in group 1 of the periodic table Its only stable isotope is 23 Na The free metal does not occur in nature and must be prepared from compounds
  • Natrium® Demonstration Project - Bechtel
    With a sodium fast reactor, integrated energy storage and flexible power production, the Natrium technology offers carbon-free energy at a competitive cost and is ready to integrate seamlessly into electric grids with high levels of renewables
  • Natrium | Nuclear Regulatory Commission - NRC
    The Natrium design combines features from the previous GEH PRISM and TerraPower Traveling Wave designs The proposed Natrium reactor is a 345 MWe pool type sodium fast reactor using HALEU metal fuel
  • Sodium | Facts, Uses, Properties | Britannica
    Sodium, chemical element of the alkali metal group in the periodic table
  • Natrium vs. Sodium: Whats the Difference?
    Natrium and sodium refer to the same chemical element (symbol Na) but differ in terminology; "natrium" is the Latin and some European languages' name, while "sodium" is the English term
  • Sodium (Na) - Periodic Table
    It is a contraction of the element's new Latin name natrium, which refers to the Egyptian natron, a natural mineral salt primarily made of hydrated sodium carbonate
  • Sodium Element (Na or Atomic Number 11) - ThoughtCo
    The element symbol, Na, was shortened from the Latin name 'Natrium ' Swedish chemist Berzelius was the first to use the symbol Na for sodium in his early periodic table
  • TerraPower | Natrium Nuclear Energy | Isotopes Cancer Treatment
    The Natrium reactor uses liquid metal to transfer heat from the reactor The properties of this material enable the system to operate at low pressure and cool naturally - making it simpler and safer than any of today's plants





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