12057-24-8 Usage
Description
Lithium oxide, also known as lithia, is a white crystalline solid that is a strong base. It is one of the simplest ionic oxides and is isoelectronic to H2O. Lithium oxide is produced when lithium metal burns in the presence of oxygen and is highly insoluble and thermally stable, making it suitable for various applications.
Uses
Used in Ceramics and Special Glass Formulations:
Lithium oxide is used as a flux in ceramic glazes, which helps to lower the melting temperature and improve the fluidity of the glaze. It also creates blues when combined with copper and pinks with cobalt, adding aesthetic value to the final product.
Used in Carbon Dioxide Absorption:
Lithium oxide is a strong alkali that absorbs carbon dioxide and water from the atmosphere, making it useful as a carbon dioxide absorbent in various applications.
Used in Thermal Barrier Coating Systems:
Its usage is being investigated for non-destructive emission spectroscopy evaluation and degradation monitoring within thermal barrier coating systems. Lithium oxide can be added as a co-dopant with yttria in the zirconia ceramic top coat, without significantly decreasing the expected service life of the coating.
Used in Lithium-Ion Batteries:
Lithium oxide is used as the cathode in lithium-ion batteries, which are utilized in power electronic devices such as mobile phones, laptop computers, and battery-powered cars.
Used in the Preparation of Lithium Hydroxide and Lithium Metal:
Lithium oxide is also used to prepare lithium hydroxide and lithium metal by electrolysis, further expanding its applications in various industries.
Reactions
Lithium oxide reacts with water as it dissolves to form a solution of lithium hydroxide.
Lithium oxide is a strong base and reacts typically with acidic gases and liquids to form lithium salts. At elevated temperatures, lithium oxide also reacts with many solid nonmetal oxides (SiO2, B2O3, etc.) and metal oxides (A12O3, Fe2O3, etc.). High-temperature reactions are the basis for the fluxing action of lithium oxide, lithium hydroxide and lithium carbonate. Care must be taken to avoid the reaction of lithium oxide with reaction vessels at high temperatures.
Preparation
Lithium oxide is prepared by heating lithium metal in dry oxygen above 100°C:
4Li + O2→2Li2O
Another method of preparation that yields pure lithium oxide involves thermal decomposition of lithium peroxide:
2Li2O2→2Li2O + O2
Also, the oxide can be produced by heating the pure lithium hydroxide at 800°C in a vacuum:
2LiOH→Li2O + H2O
Preparation
Industrial and laboratory preparations. Only small volumes of material are prepared
industrially. Both industrial and laboratory preparations require the thermal decomposition
of lithium peroxide or of lithium hydroxide.
Lithium peroxide, Li202 , is converted to lithium oxide, Li20, and oxygen by heating
to 450° in a stream of helium gas.
Thermal dehydration of lithium hydroxide is carried out at 675°C±10° under vacuum
in a nickel container lined with silver foil.
Lithium carbonate may be converted to lithium oxide and carbon dioxide by heating
the material to 700°C under vacuum in a platinum boat.
Industrial uses. There are no current industrial uses which consume large quantities of
lithium oxide.
Lithium oxide reacts with water as it dissolves to form a solution of lithium hydroxide.
Lithium oxide is a strong base and reacts typically with acidic gases and liquids to form
lithium salts. At elevated temperatures, lithium oxide also reacts with many solid nonmetal
oxides (Si02, B2O3, etc.) and metal oxides (A1203 , Fe2C>3, etc.). High-temperature
reactions are the basis for the fluxing action of lithium oxide, lithium hydroxide and
lithium carbonate. Care must be taken to avoid the reaction of lithium oxide with reaction
vessels at high temperatures.
Health Hazard
To the best of our knowledge the chemical, physical and toxicological properties of lithium oxide have not been thoroughly investigated and reported.
The toxicity of lithium compounds is a function of their solubility in water.? Lithium ion has central nervous system toxicity.? The initial effects of lithium exposure are tremors of the hands, nausea, micturition, slurred speech, sluggishness, sleepiness, vertigo, thirst, and increased urine volume.? Effects from continued exposure are apathy, anorexia, fatigue, lethargy, muscular weakness, and changes in ecg.? Long-term exposure leads to hypothyroidism, leukocytosis, edema, weight gain, polydipsia/polyuria (increased water intake leading to increased urinary output), memory impairment, seizures, kidney damage, shock, hypotension, cardiac arrhythmias, coma, death.
Check Digit Verification of cas no
The CAS Registry Mumber 12057-24-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,5 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12057-24:
(7*1)+(6*2)+(5*0)+(4*5)+(3*7)+(2*2)+(1*4)=68
68 % 10 = 8
So 12057-24-8 is a valid CAS Registry Number.
InChI:InChI=1/2Li.O/rLi2O/c1-3-2
