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499811

Sigma-Aldrich

Lithium

granular, 99% trace metals basis

Synonym(s):

Lithium atom, Lithium element

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About This Item

Linear Formula:
Li
CAS Number:
7439-93-2
Molecular Weight:
6.94
EC Number:
231-102-5
MDL number:
MFCD00134051
UNSPSC Code:
12141803
PubChem Substance ID:
24873303
NACRES:
NA.23

assay

99% trace metals basis

form

granular

reaction suitability

reagent type: reductant

resistivity

9.446 μΩ-cm, 20°C

bp

1342 °C (lit.)

mp

180 °C (lit.)

density

0.534 g/mL at 25 °C (lit.)

SMILES string

[Li]

InChI

1S/Li

InChI key

WHXSMMKQMYFTQS-UHFFFAOYSA-N

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General description

Granular lithium is a form of lithium metal that has been ground into small granules. Lithium is a soft, silver-white metal that is highly reactive and flammable. Lithium has a low density of 0.534 g/cm3, which makes it one of the lightest metals. Like the other alkali metals, lithium has a low melting point (180 °C) and is a good conductor of electricity and heat. Granular lithium is highly reactive and behaves as a strong reducing agent. It must be handled with caution due to its potential to ignite or explode. Lithium reacts readily with water and oxygen to form lithium hydroxide and lithium oxide, respectively, and even reacts with nitrogen gas at room temperature, forming lithium nitride. Typically, lithium is stored in an argon glovebox and airtight containers to prevent exposure to moisture, air, and nitrogen. To make granular lithium, the metal is first extracted from ores such as spodumene or lepidolite using a process called lithium carbonate conversion. After the lithium has been purified to a high degree of purity, it is milled into granules by rotating blades.
Lithium is a low-density alkali metal that is widely used as an anode material in rechargeable and non-rechargeable batteries. It is also used to alloy with aluminum and magnesium to make them stronger and lighter.

Application

Lithium can be used as:
  • A precursor to synthesize Li-based alloys such as LiAl and LiSi alloys, which are applicable as anode materials in the field of energy conversion and storage.
  • A reducing agent in the reduction of zirconium oxide compounds in molten LiCl salt.
  • As starting material to synthesize a reducing agent(1,4-bis(trimethylgermyl)-1.4-dihydropyrazine), for the fabrication of nickel metal films.

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H260,H314

Hazard Classifications

Skin Corr. 1B - Water-react 1

supp_hazards

EUH014

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A low-temperature thermal ALD process for nickel utilizing dichlorobis(triethylphosphine)nickel(ii) and 1{,}4-bis(trimethylgermyl)-1{,}4-dihydropyrazine"
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Anode performance of lithium--silicon alloy prepared by mechanical alloying for use in all-solid-state lithium secondary batteries
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Reduction of zirconium oxide compounds by lithium metal as a reductant in molten LiCl salt
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