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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
    Naturium: Clinically-effective, potent clean skincare formulas that work
  • Sodium - Wikipedia
    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
  • Sodium | Facts, Uses, Properties | Britannica
    Sodium also is used as a starting material in the manufacture of sodium hydride (NaH) and sodium borohydride (NaBH 4) In addition, sodium is employed in the production of dyes and dye intermediates, in the synthesis of perfumes, and in a wide variety of organic reductions It is used in the purification of hydrocarbons and in the polymerization of unsaturated hydrocarbons
  • Sodium - Periodic Table
    The metal was first isolated in 1807, through the electrolysis of sodium hydroxide by Sir Humphry Davy In 1809, Ludwig Wilhelm, a German physicist and chemist, proposed the name Natronium for it Its chemical abbreviation ‘Na’ was published in the system of atomic symbols in 1814 which is derived from its Latin name ‘natrium’ [2] Sodium
  • Sodium Facts, Symbol, Discovery, Properties, Uses - Chemistry Learner
    The Latin word for sodium carbonate, “natrium” is the origin of its chemical symbol [1, 2]
  • Sodium (Na) Element: Properties, Applications, Important Reactions
    Sodium is an alkali metal, with atomic number 11 in Group 1 [Ia] of the periodic table Sodium (from the Latin natrium) is represented in chemical notation by the symbol Na
  • 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 In 1807, Sir Humphry Davy isolated sodium for the first time by electrolysis of dried sodium hydroxide, which had been very slightly moistened
  • Element: Sodium - Periodic table
    Sodium is the chemical element with the symbol Na (from 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
  • Sodium (Na) - Chemical properties, Health and Environmental effects
    Sodium Chemical element, symbol: Na, atomic number: 11 and atomic weight 22,9898 It’s a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF)
  • WebElements Periodic Table » Sodium » the essentials
    Origin of name: from the English word "soda" (the origin of the symbol Na comes from the Latin word "natrium") More history





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