Lithium carbonate Description
Lithium carbonate is a white monoclinic crystalline solid. Typically for carbonates, lithium carbonate reacts with acids stronger than carbon dioxide or carbonic acid to yield the lithium salt of the acid and carbon dioxide. The reactions may be carried out in a solution, as an aqueous slurry, or, less effectively, with solid lithium carbonate.
Lithium carbonate exhibits a low water solubility for an alkali metal carbonate. Lithium carbonate solubility decreases with increasing temperature. Lithium carbonate is not hygroscopic and is generally stable when exposed to the atmosphere. In fact, Lithium carbonate is the normal end compound encountered when many basic lithium compounds are exposed to the atmosphere. Lithium carbonate may be dissolved in water by conversion to the hydrogen carbonate. Releasing carbon dioxide by heating the solution of lithium hydrogen carbonate causes reprecipitation of the lithium carbonate.
Lithium carbonate Function and usage
Industrial grade lithium carbonate is mainly used in steel continuous casting mold slag;lithium carbonate in the electrolytic aluminum industry, adding industrial grade lithium carbonate can reduce the volatility, viscosity and melting point of the electrolyte, and lithium carbonate can improve the conductivity of the electrolyte, thereby lithium carbonate reducing heat loss and improving Current efficiency, energy saving and prolonging the service life of electrolytic cells; lithium carbonate used to prepare refrigerant lithium bromide; lithium carbonate used to prepare lithium chloride as a raw material for metal lithium electrolysis; lithium carbonate used to prepare high-purity grade lithium carbonate and pharmaceutical grade lithium carbonate;lithium carbonate Used in glass, ceramics, enamel and enamel, etc.
|
Chemical Composition(wt%) |
Li2CO3-0 |
Li2CO3-1 |
Li2CO3-2 |
|
|
Li2CO3 (wt%),Not less than |
99.2 |
99 |
98.5 |
|
|
Na |
0.08 |
0.15 |
0.2 |
|
|
Fe |
0.002 |
0.0035 |
0.007 |
|
|
Ca |
0.025 |
0.04 |
0.07 |
|
|
Impurity Content (wt%),Not more than |
SO 2- |
0.2 |
0.35 |
0.5 |
|
Cl |
0.01 |
0.02 |
0.03 |
|
|
H2O |
0.3 |
0.3 |
0.5 |
|
|
HCl insoluble |
0.005 |
0.015 |
0.05 |
|
|
Mg |
0.015 |
- |
- |
|
