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sodium    音标拼音: [s'odiəm]
n. 钠



sodium
n 1: a silvery soft waxy metallic element of the alkali metal
group; occurs abundantly in natural compounds (especially
in salt water); burns with a yellow flame and reacts
violently in water; occurs in sea water and in the mineral
halite (rock salt) [synonym: {sodium}, {Na}, {atomic number
11}]

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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  • Sodium - Minecraft Mods - CurseForge
    Sodium is a powerful optimization mod for the Minecraft client, which greatly improves frame rates and micro-stutter, while fixing many graphical issues in Minecraft Unlike other rendering-focused mods, it boasts wide compatibility with the wider modding ecosystem
  • Sodium Levels in Blood: Symptoms of Low Sodium, Test Results - WebMD
    Maintaining proper sodium levels in your blood is critical to health Learn about the symptoms of low sodium, sodium blood tests, and normal sodium levels
  • 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
    What is the chemical symbol for sodium, and where does it fit in the periodic table? What are some common uses of sodium in everyday life? How is sodium extracted or produced industrially? What are the physical and chemical properties that characterize sodium? Why is sodium important for human health, and what role does it play in the body?
  • About Sodium and Health | Salt | CDC
    Your body needs a small amount of sodium to work properly, but too much sodium is bad for your health While sodium has many forms, most sodium we consume is from salt Most Americans consume too much sodium Most sodium comes from processed and restaurant foods
  • Sodium Element | History, Uses, Facts, Physical Chemical Characteristics
    Sodium is an alkali metal that has been known since prehistoric times It was isolated for the first time in 1807 by Humphry Davy Sodium is an essential micronutrient for plants and animals and is used in various industries
  • Sodium: What is Sodium? - Journal Of Nutrition
    Title: Sodium: A Primer on the Essential Element Excerpt: "Sodium (Na), a highly reactive alkali metal, is the sixth most abundant element in the Earth's crust With an atomic number of 11, sodium possesses a single valence electron, rendering it highly prone to ionization
  • Sodium (Na) - Chemical properties, Health and Environmental effects
    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) From the commercial point of view, sodium is the most important of all the alkaline metals
  • Sodium Facts - Science Notes and Projects
    Sodium is the eleventh element of the periodic table These sodium facts contain chemical and physical data along with general information and history Sodium periodic table cell Basic Sodium Facts Name: Sodium Atomic Number: 11 Element Symbol: Na Group: 1 Period: 3 Block: s Element Family: alkali metal Atomic Mass: 22 989 769 28 (2)
  • Sodium Element Facts - chemicool. com
    Sodium is our planet’s sixth most abundant element and it is the most abundant alkali metal Sodium is obtained commercially by electrolysis of molten sodium chloride Isotopes: Sodium has 16 isotopes whose half-lives are known, with mass numbers 20 to 35 Naturally occurring sodium consists of its one stable isotope, 23 Na





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