Lithium carbonate battery

Lithium carbonate, an inorganic compound with the chemical formula Li2CO3, is a colorless mono clinic crystal or white powder. Density 2.11 g/cm3. Melting point 618 °C(1.013 * 10 ^ 5Pa). Soluble in dilute acid. Slightly soluble in water, the solubility in cold water is greater than in hot water. Insoluble in alcohol and acetone. Can be used to make ceramics, drugs, catalysts and so on. Commonly used lithium ion battery raw materials.

Since the main raw material for the production of lithium carbonate is Salt Lake brine(the ore method is very small in global production due to high costs), companies that produce lithium carbonate on a large scale must have the right to exploit Salt Lake resources with relatively rich reserves of lithium resources. This makes the industry have higher resource barriers; On the other hand, because most of the world's salt lakes are high-magnesium and low-lithium types, the process of purifying and separating lithium carbonate from high-magnesium and low-lithium old halides is very difficult. Previously, these technologies were only in the hands of a few foreign companies., This has given the lithium carbonate industry a technical barrier. As a result, the global oligopoly pattern of the lithium carbonate industry has been created.

At present, the global lithium carbonate market is very concentrated. Before China's several large-scale projects were put into operation, the main global production capacity was concentrated in the hands of SQM, FMC, and Chemetall; Data show that although there are certain resources and technical barriers to lithium carbonate products, there are still many salt lakes in China that have exploitable value. In addition to CITIC Guoan and the Salt Lake Group outside Tibet's mining industry, the technology is also facing breakthroughs, and the barriers in the industry are gradually weakening. The industry's current high gross margins are bound to attract more money.

Physical Properties

Appearance and Properties: Colorless mono clinic crystals or white powder.

CAS number: 554-13-2

Melting point(°C): 723(decomposition temperature 1310 °C)

Relative density(water = 1): 2.11

Boiling point(°C): No data(decomposition)

Molecular formula: Li2CO3

Molecular weight: 73.89

Solubility: Slightly soluble in water, soluble in acid, insoluble in ethanol, acetone.

Chemical properties

Alias: Gaochun

English name: Lithium carbonate

1. When heated to boiling point, it begins to partially decompose into lithium oxide and carbon dioxide.

Li2CO3 = Heating = Li2O + CO2

2. Soluble in acid.

Li2CO3 + 2H + = 2 Li + H2O + CO2

For the preparation of various lithium compounds, metallic lithium and its isotopes. It is also used to prepare catalysts for chemical reactions. The semiconductor, ceramic, television, pharmaceutical and atomic energy industries also have applications. Used as an analytical reagent in analytical chemistry. There are also applications in lithium ion batteries. Used as a coagulant in cement additives.

Lithium carbonate has a significant inhibitory effect on mania and can improve the emotional disorders of schizophrenia. The amount of treatment has no effect on normal people's mental activities. The mechanism of action may inhibit the release of nor-epinephrine in the synaptic part of the brain and promote re uptake. It has an effect on raising peripheral blood cells. The small dose of this drug is used for uterine myoma and excessive menstruation. The small dose can also be used for acute diarrhea. Lithium salt has no sedative effect, and it is generally used in patients with severe acute mania. It is first combined with chlorpromazine or fluperidine. After acute symptom control, maintain with lithium carbonate alone.

Risk profile

Health hazards: After accidental poisoning, the gastrointestinal tract, heart, kidneys and nervous system are mainly damaged. Toxic manifestations include nausea, vomiting, diarrhea, headache, dizziness, drowsiness, visual impairment, lip, limb tremors, convulsions, and coma.

Environmental hazards: May be harmful to the environment and may cause pollution to water bodies.

Burst hazard: the product does not ignite.

First aid measures

Skin contact: Remove contaminated clothing and rinse with plenty of flowing water.

Eye contact: Lift eyelids and rinse with flowing water or saline. Medical treatment.

Inhalation: Quick exit to fresh air. Keep the airways open. If breathing is difficult, give oxygen. If breathing stops, artificial respiration is performed immediately. Medical treatment.

Ingredient: Drink enough warm water to promote vomiting. Gastric lavage, catharsis. Medical treatment.

Fire protection measures

Hazard characteristic: can not burn itself. Free up toxic gases by high heat.

Harmful combustion products: carbon monoxide, carbon dioxide.

Fire fighting method: Firefighters must wear full-body fire fighting and anti-virus clothing to extinguish fire in the upper wind direction. When extinguishing fire, move the container from the fire to the open as far as possible. Then choose the appropriate fire extinguishing agent according to the cause of fire.

Leakage emergency response

Emergency treatment: quarantine of contaminated areas, restricted access. It is recommended that emergency personnel wear dust masks and general work clothes. Do not touch leaks directly.

A small amount of leakage: avoid dust, carefully sweep up, collected in a dry, clean, covered container.

Large quantities of leakage: collection, recovery or shipment to a waste disposal site for disposal.

Operational disposal storage

Practice Note: Confined operation to provide adequate local ventilation. Prevent dust from being released into the air of the workshop. Operators must be specially trained to strictly follow the operating rules. It is recommended that operators wear dust masks(full cover), breathable anti-virus suits, and rubber gloves. Avoid producing dust. Avoid contact with oxidants, acids, and fluorine. Equipped with leak emergency treatment equipment. The empty container may be contaminated.

Storage note: Store in a cool, ventilated warehouse. Keep away from fire, heat. Prevent direct sunlight. Packaging seal. It should be stored separately from oxidants, acids, and fluorine, and should not be mixed. The storage area should be equipped with suitable materials to hold the leakage.

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