CAS No. 12057-24-8 chemical Name: Lithium oxide Synonyms Li2O;Lithia;Kickerite;Lithiumoxid;Oxydilithium;LITHIUM OXIDE;Oxybislithium;oxydedelithium;dilithiumoxide;lithiummonoxide CBNumber: CB7164125 molecular Formula: Li2O Formula Weight: 29.88 MOL File: 12057-24-8.mol
melting point: 1427°C density 2.013 g/mL at 25 °C (lit.) form Powder certain Gravity 2.013 shade White Water Solubility dissolve in water. perceptible Air & Moisture perceptible Merck 14,5538 CAS DataBase referral 12057-24-8(CAS DataBase Reference) EWG"s Food Scores 1 FDA UNII 2ON0O9YI0Q NIST Chemistry reference Dilithium monoxide(12057-24-8) EPA problem Registry device Dilithium oxide (12057-24-8)

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Lithium oxide chemical Properties,Uses,Production

Chemical Properties

Lithium oxide (Li2O) is just one of simplest ionic oxides and also it is isoelectronic to H2O. 2 lithium atoms will each offer one electron come the oxygen atom. Creates the ionic bond in between lithium and oxygen. The formula for lithium oxide is Li2O.

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Lithium oxide is very corrosive. That reacts v water to make lithium hydroxide. The is toxic since of its strong alkalinity (being a base).It is a highly insoluble thermally stable Lithium source suitable for glass, optic and also ceramic applications. Lithium oxide is a white solid also known together lithia, it is developed when lithium metal burns in the existence of oxygen. Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides room electronically conductive finding application in the cathode of solid oxide fuel cells and also oxygen generation systems. They are compounds comprise at least one oxygen anion and also one metallic cation.Lithium oxide is used as a flux in ceramic glazes; and creates blues v copper and also pinks with cobalt. Lithium oxide reacts through water and also steam, forming lithium hydroxide and also should it is in isolated indigenous them. Its usage is also being investigated because that non-destructive emission spectroscopy evaluation and degradation security within thermal barrier coating systems. It can be added as a co-dopant with yttria in the zirconia ceramic peak coat, without a big decrease in expected service life the the coating.

Uses

There space no existing industrial uses which consume large quantities of lithium oxide.Lithium oxide is offered as a flux in ceramic glazes; and also creates blues through copper and also pinks with cobalt. Lithium oxide reacts through water and steam, developing lithium hydroxide and also should be isolated from them.Its usage is also being investigated for non-destructive emission spectroscopy evaluation and also degradation security within thermal barrier coating systems. It deserve to be included as a co-dopant with yttria in the zirconia ceramic top coat, without a large decrease in expected service life that the coating.

Reactions

Lithium oxide reacts through water as it disappear to type a solution of lithium hydroxide.Lithium oxide is a solid base and reacts frequently with acidic gases and also liquids to type lithium salts. At elevated temperatures, lithium oxide also reacts with numerous solid nonmetal oxides (SiO2, B2O3, etc.) and also metal oxides (A12O3, Fe2O3, etc.). High-temperature reactions room the basis because that the fluxing action of lithium oxide, lithium hydroxide and also lithium carbonate. Treatment must it is in taken to avoid the reaction of lithium oxide through reaction vessels at high temperatures.

Preparation

Lithium oxide is prepared by heater lithium metal in dried oxygen over 100°C:4Li + O2→2Li2OAnother technique of ready that returns pure lithium oxide entails thermal decomposition that lithium peroxide:2Li2O2→2Li2O + O2Also, the oxide deserve to be developed by heater the pure lithium hydroxide at 800°C in a vacuum:2LiOH→Li2O + H2O

Health Hazard

To the finest of our knowledge the chemical, physical and toxicological properties of lithium oxide have not been thoroughly investigated and reported.The toxicity that lithium compound is a function of their solubility in water. Lithium ion has main nervous device toxicity. The initial results of lithium exposure are tremors that the hands, nausea, micturition, slurred speech, sluggishness, sleepiness, vertigo, thirst, and increased urine volume. Results from ongoing exposure room apathy, anorexia, fatigue, lethargy, muscular weakness, and also changes in ecg. Permanent 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.

Chemical Properties

carefully divided white powder(s) or crusty material; easily absorbs CO2 and also H2O indigenous the atmospheric; make by heating LiOH come ~800°C in a vacuum or by thermal decomposition the lithium peroxide; offered in ceramics and also special glass formulations and in lithium thermal batteries

Uses

Lithium oxide is a strong alkali the absorbs carbon dioxide and also waterfrom the atmosphere. It is supplied in production ceramics and also special types of glass.

Uses

Ceramics and also special glass formulations, carbon dioxide absorbent

Preparation

Industrial and also laboratory preparations. Only small volumes of product are preparedindustrially. Both industrial and laboratory preparations require the heat decompositionof lithium peroxide or of lithium hydroxide.Lithium peroxide, Li202 , is convert to lithium oxide, Li20, and oxygen by heatingto 450° in a present of helium gas.Thermal dehydration the lithium hydroxide is lugged out at 675°C±10° under vacuumin a nickel container lined with silver foil.Lithium carbonate may be convert to lithium oxide and also carbon dioxide by heatingthe product to 700°C under vacuum in a platinum boat.Industrial uses. There room no present industrial supplies which consume large quantities oflithium oxide.Lithium oxide reacts through water together it disappear to kind a solution of lithium hydroxide.Lithium oxide is a solid base and reacts typically with acidic gases and also liquids come formlithium salts. At elevated temperatures, lithium oxide likewise reacts with countless solid nonmetaloxides (Si02, B2O3, etc.) and also metal oxides (A1203 , Fe2C>3, etc.). High-temperaturereactions space the basis for the fluxing activity of lithium oxide, lithium hydroxide andlithium carbonate.

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Care must be taken to prevent the reaction the lithium oxide through reactionvessels in ~ high temperatures.

Lithium oxide preparation Products and also Raw materials

Raw materials

Preparation Products