Lithium

HCID 3028194CAS 7439-93-2

Basic information

Standard SMILES
[Li]
InChIKey
WHXSMMKQMYFTQS-UHFFFAOYSA-N
Molecular formula
Li
Average molar mass
7 g/mol
Monoisotopic mass
7.01600455

Overview

Lithium appears as a soft silvery metal that is normally grayish white. Reacts violently with water to form flammable hydrogen gas and strong caustic solution. Ignition usually occurs. Strong (corrosive) alkali fumes are formed in fire. (USCG, 1999)

Names & identifiers

Preferred name
Lithium
IUPAC
lithium

Names & synonyms

LITHIUM7439-93-2Lithium elementCHEBI:30145Lithium, metallicLithium, elementalLithium 7DTXSID5036761RefChem:5953LITHIUM METALLICUM9FN79X2M3FDTXCID101012138
Show more names
231-102-5Lilithium(1+) ionLithium-7Lithium atomMFCD00134051LitiumMFCD00011074

Database identifiers

CAS
7439-93-2
PubChem CID
3028194
DTXSID
DTXSID5036761
ChEMBL
CHEMBL1201333
ChEBI
CHEBI:30145
UNII
9FN79X2M3F
EC Number
231-102-5

Properties

Computed structural properties

Topological polar surface area
0 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
0
Rotatable bonds
0
Heavy atoms
1

Experimental & physicochemical properties

Chemical Classes · 3 items

Metals -> Elements, Metallic

Flammable agents - 2nd degree

Trace element

SpringerMaterials Propertieselectron density of states
OdorODORLESS
Density · 4 items

0.53 at 68 °F (USCG, 1999) - Less dense than water; will float

0.534 g/cu cm at 25 °C

0.5 g/cm³

0.534 @25 °C

Color/Form · 2 items

Soft silvery-white metal

Silvery-white metal; body centered cubic structure; becomes yellowish on exposure to moist air

Solubility · 3 items

Reacts with water

Soluble in liquid ammonia forming a blue solution

Solubility in water: violent reaction

Safety & regulation

GHS classification

GHS Classification · 6 items

Danger

H260: In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, emit flammable gases]

P223, P231+P232, P260, P264, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P402+P404, P405, and P501 (click each P-code to see the statement)

Danger

H260 (100%): In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, emit flammable gases]

P223, P231+P232, P260, P264, P264+P265, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P370+P378, P402+P404, P405, and P501 (click each P-code to see the statement)

Hazard information

Regulatory Information · 5 items

Chemical: Lithium

Lithium is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Lithium are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 03-08-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/14178

Lithium: HSNO Approval: HSR001278 Approved with controls

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Other Safety InformationIMAP assessments - Lithium: Environment tier I assessment
DOT LabelDangerous When Wet
Fire Hazards · 3 items

Special Hazards of Combustion Products: Strong alkali fumes are formed in fire.

· Produce flammable gases on contact with water.

Flammable. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with combustible substances or water.

Fire Potential · 6 items

... Flammable solid.

Molten Li is... difficult to extinguish.

Reacts violently /with water/ to form hydrogen gas and strong caustic solution. Ignition usually occurs.

If lithium metal is heated to its melting point, spontaneous ignition is likely.

Lithium is spontaneously flammable in air if heated to 180 °C, if the surface of the metal is clean ...

Finely divided metal may ignite in air at ambient temperature and /a large mass of/ metal above the melting point, 180 °C, especially if oxide or nitride is present.

Health Hazards · 2 items

Contact with eyes causes caustic irritation or burn. Incontact with skin lithium reacts with body moisture to cause chemical burns: foil, ribbon, and wire react relatively slowly. (USCG, 1999)

· Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death.

Safety & protection

Fire Fighting · 2 items

Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]:

Use special powder. NO water. NO other agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

First Aid Measures · 4 items

Fresh air, rest. Half-upright position. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Refer for medical attention .

Accidental Release Measures · 2 items

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

First Aid · 2 items

EYES or SKIN: flush with water and treat with boric acid. (USCG, 1999)

General First Aid:

Safe StorageFireproof. Separated from strong oxidants, acids, halons and other incompatible materials. See Chemical Dangers. Dry. Keep under mineral oil.
Firefighting Hazards · 4 items

Corrosive ... Water reactive ... Evolves hydrogen and ignites on contact with water.

Sodium carbonate and sodium chloride are unsuitable to use as extinguishers for lithium fires, since burning lithium will liberate the more reactive sodium in contact with them.

Liquid lithium is readily ignited and reacts with most extinguishing agents, including water, carbon tetrachloride and carbon dioxide.

Since lithium will burn in oxygen, nitrogen or carbon dioxide, and when alight it will remove the combined oxygen in sand, sodium carbonate, etc., it is difficult to extinguish once alight ... Use of normal fire extinguishers (containing water, form, carbon dioxide, halocarbons, dry powders) will either accelerate combustion or cause explosion.

Toxicology

Hepatotoxicity · 1 item

Liver test abnormalities have been reported to occur in a small proportion of patients on long term therapy with lithium. These abnormalities are usually asymptomatic and transient, reversing even with continuation of medication. Instances of more marked elevations in serum aminotransferases have been reported in patients taking overdoses of lithium, but the other metabolic and systemic effects of lithium overdose generally overshadow hepatic adverse effects. Lithium has not been associated with instances of clinically apparent acute liver injury with jaundice.

Adverse Effects · 2 items

Neurotoxin - Other CNS neurotoxin

Lithium can cause various adverse effects, often correlated with the dosage. The notable adverse effects of lithium include:

Exposure RoutesThe substance can be absorbed into the body by inhalation of its aerosol and by ingestion.
Toxicity Summary · 2 items

IDENTIFICATION AND USE: Elemental lithium is a silver white metal; body centered cubic structure it becomes yellowish on exposure to moist air and it reacts with water. It is soluble in liquid ammonia forming a blue solution. It is used in the manufacture of catalysts for polyolefin plastics; in fuels for aircraft and missiles.It is used in metallurgy, as a degasifier, deoxidizer, desulfurizer; as a grain refiner in non-ferrous metals. Chemical intermediate for butyllithium polymerization catalyst; in alloys with aluminum or magnesium for aerospace uses. It is used in the production of tritium, reducing and hydrogenating agents, alloy hardeners, pharmaceuticals and Grignard reagents. Scavenger and degassifier for stainless and mild steels in molten state, modular iron, soaps and greases, deoxidizer in copper and copper alloys, heat-transfer liquid, storage batteries (with sulfur, selenium, tellurium, and chlorine). Rocket propellants, vitamin A synthesis, silver solders, underwater bouyancy devices, nuclear reactor coolent. HUMAN EXPOSURE AND TOXICITY: Elemental lithium causes severe eye and skin burns. Industrial exposures to lithium may occur during extraction of lithium from its ores, preparation of various lithium compounds, welding, brazing, enameling, and from the use of lithium hydrides. ANIMAL STUDIES: No animal studies could be located.

Due to its narrow therapeutic index, serum levels of lithium exceeding 2 mEq/L are considered toxic, which falls within its therapeutic range. Lithium toxicity can result in interstitial nephritis, arrhythmia, sick sinus syndrome, hypotension, T-wave abnormalities, and bradycardia. In rare instances, toxicity can lead to pseudotumor cerebri and seizures. Notably, there exists no antidote for lithium toxicity. The primary approach to treating lithium toxicity involves hydration and discontinuation of the drug. Administering hydration through normal saline concurrently facilitates lithium excretion. Close monitoring is essential to prevent hypernatremia in patients receiving normal saline. Diuretic use should be avoided for patients on lithium treatment. For mitigating tremors, administering 20 to 30 mg of propranolol twice or thrice daily is recommended.

Signs and Symptoms · 4 items

Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed.

Redness. Skin burns. Pain. Blisters.

Redness. Pain. Severe deep burns.

Abdominal cramps. Abdominal pain. Burning sensation. Nausea. Shock or collapse. Vomiting. Weakness.

Natural Pollution Sources · 1 item

Lithium is widely distributed in nature; trace amounts are found in many minerals, in most rocks and soils, and in many natural waters(1). Lithium is a member of the alkali metals and does not occur as the free metal in nature(2). The typical oxidation state of the alkali metals is +1; no other cations are known or expected for the alkali metals(4). Lithium concentrations in the earth's crust are estimated to be 20 to 70 ppm by weight(1); it is the 27th most abundant element(3). Lithium is found in small amounts in nearly all igneous rocks and in the waters of many mineral springs(2). Lepidolite, spodumene, petalite, and amblygonite are the most important lithium containing minerals(2).

Chemistry & industry

Pharmacology

ATC Code · 2 items

N - Nervous system

QN - Nervous system

BionecessityNo physiological function has been reported for Li.
Biological Half-LifeEliminated by the kidney with a half-life of 14-30 hours; [Olson, p. 260]
FDA Pharmacological Classification · 4 items

LITHIUM

Mood Stabilizer [EPC]

LITHIUM METALLICUM

Mood Stabilizer [EPC]

Uses & manufacturing

Uses · 6 items

Used to manufacture alloys, greases, ceramics, batteries, aircraft fuel, and organic chemicals; Used as a fuel and heat-transfer fluid in the nuclear power industry and as a scavenger for oxygen and sulfur; Dietary intake estimated at 2mg/day; Lithium salts are used as drugs in the treatment of bipolar depression. [CHEMINFO]

Metal Preparation and Pouring [Category: Foundry]

Ceramics making [Category: Hobbies]

As "getter" in vacuum tubes; manufacture of catalysts for polyolefin plastics; in fuels for aircraft, missiles.

In metallurgy, as degasifier, deoxidizer, desulfurizer; as grain refiner in non-ferrous metals.

Chem intermediate for butyllithium polymerization catalyst; in alloys with aluminum or magnesium for aerospace uses

Impurities · 2 items

The purity of the meatal is 99.8% or better with the metallic impurities less than 0.1%

Purity of metal is 99.8%

U.S. Exports · 2 items

(1975) 2.72X10+7 GRAMS

(1985) 2.36X10+9 g

U.S. Imports770 metric tons /compounds, concentrate, ores, and metal/
U.S. Production · 3 items

2023: 2,500,000 - <4,000,000 lb

(1972) LESS THAN 5.6X10+8 GRAMS (USE)

(1975) 4.03X10+9 G (DELIVERIES)

Consumer UsesOxidizing agent

Related reactions

1,585 records

Linked notes

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