Difference between revisions of "Lithium sulfate"
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| − | | Name = Lithium sulfate | + | | Name = Lithium sulfate (anhydrous) |
| ImageFile = | | ImageFile = | ||
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| CASNo = 10377-48-7 | | CASNo = 10377-48-7 | ||
| CASNo_Ref = {{cascite}} | | CASNo_Ref = {{cascite}} | ||
| − | | CASOther = <br> 10102-25-7 (monohydrate) | + | | CASOther = <br/>10102-25-7 (monohydrate) |
| PubChem = 66320 | | PubChem = 66320 | ||
| RTECS = OJ6419000 | | RTECS = OJ6419000 | ||
| + | | EC-number = 233-820-4 | ||
| + | | ChemSpiderID = 59698 | ||
| + | | InChI = 1/2Li.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 | ||
| + | | InChIKey = INHCSSUBVCNVSK-NUQVWONBAF | ||
| + | | StdInChI = 1S/2Li.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 | ||
| + | | SydInChIKey = INHCSSUBVCNVSK-UHFFFAOYSA-L | ||
}} | }} | ||
| Section2 = {{Chembox Properties | | Section2 = {{Chembox Properties | ||
| − | | Reference = <ref> | + | | Reference = <ref name="RubberBible">{{RubberBible62nd|page=B-114</ref> |
| Formula = Li<sub>2</sub>SO<sub>4</sub> | | Formula = Li<sub>2</sub>SO<sub>4</sub> | ||
| MolarMass = 109.94 g/mol | | MolarMass = 109.94 g/mol | ||
| Appearance = White crystalline solid, [[hygroscopic]] | | Appearance = White crystalline solid, [[hygroscopic]] | ||
| − | | Density = 2.221 g/cm<sup>3</sup> (anhydrous) <br> 2.06 g/cm<sup>3</sup> (monohydrate) | + | | Density = 2.221 g/cm<sup>3</sup> (anhydrous)<br/>2.06 g/cm<sup>3</sup> (monohydrate) |
| − | | Solubility = | + | | Solubility = 26.1 g/100 mL (0 °C) <br> 23 g/100 mL (100 °C) |
| SolubleOther = insoluble in absolute [[ethanol]], [[acetone]] and [[pyridine]] | | SolubleOther = insoluble in absolute [[ethanol]], [[acetone]] and [[pyridine]] | ||
| MeltingPt = 859 °C | | MeltingPt = 859 °C | ||
| BoilingPt = 1377 °C | | BoilingPt = 1377 °C | ||
| − | | RefractIndex = 1.465 | + | | RefractIndex = 1.465 (β-form) |
}} | }} | ||
| Section3 = {{Chembox Structure | | Section3 = {{Chembox Structure | ||
| − | |||
| Coordination = | | Coordination = | ||
| − | | CrystalStruct = | + | | CrystalStruct = [[Monoclinic crystal system|monoclinic]] (α-form) |
| − | | | ||
}} | }} | ||
| Section4 = {{Chembox Thermochemistry | | Section4 = {{Chembox Thermochemistry | ||
| − | | | + | | Reference = <ref>{{NIST Chemistry}}.</ref> |
| − | | | + | | DeltaHf = −1436.37 kJ/mol |
| − | | Entropy = | + | | Entropy = |
| − | | HeatCapacity = | + | | HeatCapacity = |
}} | }} | ||
| Section7 = {{Chembox Hazards | | Section7 = {{Chembox Hazards | ||
| ExternalMSDS = | | ExternalMSDS = | ||
| − | | EUIndex = | + | | EUIndex = not listed |
| − | | | + | | FlashPt = non-flammable |
| − | |||
| − | |||
| − | |||
}} | }} | ||
| Section8 = {{Chembox Related | | Section8 = {{Chembox Related | ||
| OtherAnions = | | OtherAnions = | ||
| − | | OtherCations = [[Sodium sulfate]]<br/>[[Potassium sulfate]] | + | | OtherCations = [[Sodium sulfate]]<br/>[[Potassium sulfate]]<br/>[[Rubidium sulfate]]<br/>[[Caesium sulfate]] |
| − | |||
}} | }} | ||
}} | }} | ||
Revision as of 05:51, 3 December 2009
| Lithium sulfate (anhydrous) | |
|---|---|
| IUPAC name | Lithium sulfate |
| Identifiers | |
| InChI | InChI=1/2Li.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| InChIKey | INHCSSUBVCNVSK-NUQVWONBAF |
| Standard InChI | InChI=1S/2Li.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| CAS number | [], 10102-25-7 (monohydrate) |
| EC number | |
| RTECS | OJ6419000 |
| ChemSpider | |
| PubChem | |
| Properties[1] | |
| Chemical formula | Li2SO4 |
| Molar mass | 109.94 g/mol |
| Appearance | White crystalline solid, hygroscopic |
| Density | 2.221 g/cm3 (anhydrous) 2.06 g/cm3 (monohydrate) |
| Melting point |
859 °C |
| Boiling point |
1377 °C |
| Solubility in water | 26.1 g/100 mL (0 °C) 23 g/100 mL (100 °C) |
| Solubility | insoluble in absolute ethanol, acetone and pyridine |
| Refractive index (nD) | 1.465 (β-form) |
| Structure | |
| Crystal structure | monoclinic (α-form) |
| Thermochemistry[2] | |
| Std enthalpy of formation ΔfH |
−1436.37 kJ/mol |
| Hazards | |
| EU index number | not listed |
| Flash point | non-flammable |
| Related compounds | |
| Other cations | Sodium sulfate Potassium sulfate Rubidium sulfate Caesium sulfate |
| Template:Tick(what is this?) (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Lithium sulfate is a white inorganic salt with the formula Li2SO4. It is used to treat bipolar disorder (see lithium pharmacology). It is soluble in water, though it does not follow the usual trend of solubility versus temperature — its solubility in water decreases with increasing temperature. This property is shared with few inorganic compounds, such as the lanthanoid sulfates.
Lithium sulfate crystals, being piezoelectric, are also used in ultrasound-type non-destructive testing because they are very efficient sound generators. However they do suffer in this application because of their water solubility.
References
- ↑ {{RubberBible62nd|page=B-114
- ↑ NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/>.
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