Difference between revisions of "Lithium sulfate"

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|  CASNo = 10377-48-7
 
|  CASNo = 10377-48-7
 
|    CASNo_Ref = {{cascite}}
 
|    CASNo_Ref = {{cascite}}
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|  CASOther = <br/>10102-25-7 (monohydrate)
 
 
|  PubChem = 66320
 
|  PubChem = 66320
 
|  RTECS = OJ6419000
 
|  RTECS = OJ6419000
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|  MolarMass = 109.94 g/mol
 
|  MolarMass = 109.94 g/mol
 
|  Appearance = White crystalline solid, [[hygroscopic]]
 
|  Appearance = White crystalline solid, [[hygroscopic]]
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|  Density = 2.221 g/cm<sup>3</sup> (anhydrous)<br/>2.06 g/cm<sup>3</sup> (monohydrate)
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|  Density = 2.221 g/cm<sup>3</sup>
 
|  Solubility = 26.1 g/100 mL (0 °C) <br> 23 g/100 mL (100 °C)
 
|  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]]
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| Section4 = {{Chembox Thermochemistry
 
| Section4 = {{Chembox Thermochemistry
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|  Reference = <ref>{{NIST Chemistry}}.</ref>
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|  Reference = <ref>{{NIST Chemistry|name=Lithium sulfate|url=http://webbook.nist.gov/cgi/inchi/InChI%3D1S/2Li.H2O4S/c%3B%3B1-5(2%2C3)4/h%3B%3B(H2%2C1%2C2%2C3%2C4)/q2*%2B1%3B/p-2|accessdate=2009-12-03}}.</ref>
 
|  DeltaHf = −1436.37 kJ/mol
 
|  DeltaHf = −1436.37 kJ/mol
 
|  Entropy =
 
|  Entropy =
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|  Name = Lithium sulfate monohydrate
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|  ImageFile =
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|  ImageName = Lithium sulfate
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|  IUPACName = Lithium sulfate — water (1:1)
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|  OtherNames =
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| Section1 = {{Chembox Identifiers
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|  CASNo = 10102-25-7
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|    CASNo_Ref = {{cascite}}
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|  RTECS = OJ6419000
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|  EC-number = 233-820-4
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|  ChemSpiderID = 145317
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|  InChI = 1/2Li.H2O4S.H2O/c;;1-5(2,3)4;/h;;(H2,1,2,3,4);1H2/q2*+1;;/p​-2
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|  InChIKey = RKGLUDFWIKNKMX-NUQVWONBAN
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|  StdInChI = 1S/2Li.H2O4S.H2O/c;;1-5(2,3)4;/h;;(H2,1,2,3,4);1H2/q2*+1;;/​p-2
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|  SydInChIKey = RKGLUDFWIKNKMX-UHFFFAOYSA-L
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  }}
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| Section2 = {{Chembox Properties
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|  Reference = <ref name="RubberBible"/>
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|  Formula = Li<sub>2</sub>SO<sub>4</sub>·H<sub>2</sub>O
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|  MolarMass = 127.95 g/mol
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|  Appearance = White crystalline solid
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|  Density = 2.06 g/cm<sup>3</sup>
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|  Solubility = 34.9 g/100 mL (25 °C)<br/>23 g/100 mL (100 °C)
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|  SolubleOther = insoluble in absolute [[ethanol]], [[acetone]] and [[pyridine]]
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|  MeltingPt = 140 °C ''dehydr.''
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|  RefractIndex = 1.465, 1.477, 1.488
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|  Coordination =
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|  CrystalStruct = [[Monoclinic crystal system|monoclinic]]
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  }}
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| Section7 = {{Chembox Hazards
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|  ExternalMSDS =
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|  EUIndex = not listed
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|  FlashPt = non-flammable
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  }}
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'''Lithium sulfate''' is a white inorganic salt with the [[chemical formula|formula]] Li<sub>2</sub>SO<sub>4</sub>. 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''' is a white inorganic salt with the [[chemical formula|formula]] Li<sub>2</sub>SO<sub>4</sub>. 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.

Revision as of 06:01, 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 [10377-48-7]
EC number 233-820-4
RTECS OJ6419000
ChemSpider 59698
PubChem 66320
Properties[1]
Chemical formula Li2SO4
Molar mass 109.94 g/mol
Appearance White crystalline solid, hygroscopic
Density 2.221 g/cm3
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 ΔfHo298 −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 monohydrate
IUPAC name Lithium sulfate — water (1:1)
Identifiers
InChI InChI=1/2Li.H2O4S.H2O/c;;1-5(2,3)4;/h;;(H2,1,2,3,4);1H2/q2*+1;;/p​-2
InChIKey RKGLUDFWIKNKMX-NUQVWONBAN
Standard InChI InChI=1S/2Li.H2O4S.H2O/c;;1-5(2,3)4;/h;;(H2,1,2,3,4);1H2/q2*+1;;/​p-2
CAS number [10102-25-7]
EC number 233-820-4
RTECS OJ6419000
ChemSpider 145317
Properties[1]
Chemical formula Li2SO4·H2O
Molar mass 127.95 g/mol
Appearance White crystalline solid
Density 2.06 g/cm3
Melting point

140 °C dehydr.

Solubility in water 34.9 g/100 mL (25 °C)
23 g/100 mL (100 °C)
Solubility insoluble in absolute ethanol, acetone and pyridine
Refractive index (nD) 1.465, 1.477, 1.488
Structure
Crystal structure monoclinic
Hazards
EU index number not listed
Flash point non-flammable
 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

  1. ↑ 1.0 1.1 {{RubberBible62nd|page=B-114
  2. ↑ Lithium sulfate. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/2Li.H2O4S/c%3B%3B1-5(2%2C3)4/h%3B%3B(H2%2C1%2C2%2C3%2C4)/q2*%2B1%3B/p-2>. (accessed 3 December 2009).


Template:Bipolar disorder

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