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Entrée : Lithium - montrer la version 4

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_b27fd15d

[Wikipedia] Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of lithium. Due to its solubility as an ion, it is present in ocean water and is commonly obtained from brines. Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride.

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est un Concept | feature of interest
modifié le 17 Nov 2023 08:31:48.313
soumis parHélène Bressan
accepté le 22 May 2023 15:18:45.376

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date accepted 22 May 2023 15:18:45.376
date submitted 22 May 2023 13:21:09.638
definition
entity Lithium
source graph graph

description [Wikipedia] Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of lithium. Due to its solubility as an ion, it is present in ocean water and is commonly obtained from brines. Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride.
item class Concept | feature of interest
label
fr Lithium
en Lithium
modified 17 Nov 2023 08:31:48.313
notation c_b27fd15d
register mots clefs
status status experimental
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

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version info 4
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Définition

alt label Li
description [Wikipedia] Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of lithium. Due to its solubility as an ion, it is present in ocean water and is commonly obtained from brines. Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride.
exact match c b27fd15d
in scheme Vocabulaire des mots clefs
label
fr Lithium
en Lithium
pref label
fr Lithium
en Lithium
same as c b27fd15d
top concept of Vocabulaire des mots clefs
type Concept | feature of interest
was attributed to Pôle THEIA