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Lithium chloride anhydrous

Anhydrous LiCl in a tube.

Lithium chloride is an ionic salt of lithium with the chemical formula LiCl.

PropertiesEdit

ChemicalEdit

LiCl will react with soluble salts of heavy metals, such as silver and lead nitrate, to precipitate their insoluble chlorides.

LiCl + AgNO3 → LiNO3 + AgCl
2 LiCl + Pb(NO3)2 → 2 LiNO3 + PbCl2

PhysicalEdit

Lithium is a white hygroscopic solid compound, soluble in water and many other solvents, such as methanol, ethanol, isopropanol, butanol, formic acid, N-Methylformamide, hydrazine, THF, although it is poorly soluble in acetone and ammonia. LiCl is completely insoluble in dichloromethane. Lithium chloride has a melting point at around 614 °C.

AvailabilityEdit

Lithium chloride can be purchased from chemical suppliers. ScienceCompany sells 100 g of LiCl at $18.95.

PreparationEdit

Although lithium chloride can be prepared by reacting lithium metal with hydrochloric acid or chlorine gas, this method is both uneconomical and extremely dangerous, as it consumes the expensive metal. LiCl is much better prepared by reacting lithium carbonate with HCl. Completely dead lithium batteries are a good source of lithium carbonate. Lithium chloride can be dried to its anhydrous form by heating it in a stream of hydrogen chloride.

Lithium oxide or hydroxide can also be used, but significant heat will be generated.

ProjectsEdit

  • Making lithium metal

HandlingEdit

SafetyEdit

Lithium chloride affects the nervous system, so it should not be used as a salt substitute.

StorageEdit

Lithium chloride is hygroscopic and must be stored in an airtight container (if you don't want to use its hydrated form).

DisposalEdit

As lithium compounds can be hard to come by, they are best recycled.

ReferencesEdit

Relevant Sciencemadness threadsEdit

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