Lithium sulfite

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| Name = Lithium sulfite

| ImageFile = Li2SO3.svg

| ImageSize = 200px

| IUPACName = Lithium sulfite

| SystematicName = Lithium sulfite; Dilithium sulfite

| OtherNames = Lithium Sulphite

|Section1={{Chembox Identifiers

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| CASNo =13453-87-7

| EINECS =236-636-2

| PubChem =11665397

| ChemSpiderID = 9840129

| SMILES = [Li+].[O-]S(O)=O

| InChI = InChI=1S/Li.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1

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|Section2={{Chembox Properties

| Formula = Li₂SO₃

| MolarMass = 93.943 g/mol

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|Section3={{Chembox Structure

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|Section4={{Chembox Thermochemistry

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|Section5={{Chembox Pharmacology

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|Section7={{Chembox Hazards

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| GHSSignalWord = Warning

| HPhrases = {{H-phrases|335}}

| PPhrases = {{P-phrases|261|271|304+340|312|403+233|405|501}}

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|Section8={{Chembox Related

| OtherAnions =lithium sulfate

| OtherCations =sodium sulfite

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| OtherCompounds =Lithium hydrogen sulfite

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Lithium sulfite, or lithium sulphite, is an ionic compound with the formula Li₂SO₃.{{Cite journal |last=Fujita |first=Yushi |last2=Motohashi |first2=Kota |last3=Ding |first3=Jiong |last4=Tsukasaki |first4=Hirofumi |last5=Mori |first5=Shigeo |last6=Sakuda |first6=Atsushi |last7=Hayashi |first7=Akitoshi |date=2024-07-08 |title=Lithium Sulfite Enhances Cycle Performance of All-Solid-State Batteries with Li 2 S-Based Positive Electrode Materials |url=https://pubs.acs.org/doi/10.1021/acsaem.4c00770 |journal=ACS Applied Energy Materials |language=en |volume=7 |issue=13 |pages=5447–5456 |doi=10.1021/acsaem.4c00770 |issn=2574-0962|url-access=subscription }}