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14LiOH + 4BF3 ๐Ÿ’งโ†’ Li2B4O7โ†“ + 12LiFโ†“ + 7H2O

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Reaction of lithium hydroxide and boron trifluoride
14LiOHLithium hydroxide + 4BF3Boron trifluoride
๐Ÿ’ง
โŸถ
Li2B4O7โ†“Lithium tetraborate + 12LiFโ†“Lithium fluoride + 7H2OWater

The reaction of lithium hydroxide and boron trifluoride yields lithium tetraborate, lithium fluoride, and water. This reaction is an acid-base reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related categories

Reaction data

Chemical equation

Reaction of lithium hydroxide and boron trifluoride
14LiOHLithium hydroxide + 4BF3Boron trifluoride
๐Ÿ’ง
โŸถ
Li2B4O7โ†“Lithium tetraborate + 12LiFโ†“Lithium fluoride + 7H2OWater

General equation

Precipitation reaction
Miscible with water/Very soluble in water/Soluble in waterLewis acid + Miscible with water/Very soluble in water/Soluble in waterLewis base
๐Ÿ’ง
โŸถ
Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)

Oxidation state of each atom

Reaction of lithium hydroxide and boron trifluoride

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
LiOHLithium hydroxide14
Lewis acid
Soluble in water
BF3Boron trifluoride4
Lewis base
Very soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
Li2B4O7Lithium tetraborate1
Lewis conjugate
Slightly soluble in water
LiFLithium fluoride12
Lewis conjugate
Slightly soluble in water
H2OWater7
Non-redox product
โ€“

Thermodynamic changes

Changes in standard condition

Reaction of lithium hydroxide and boron trifluoride
14LiOHCrystalline solid + 4BF3Gas
๐Ÿ’ง
โŸถ
Li2B4O7โ†“Crystalline solid + 12LiFโ†“Crystalline solid + 7H2OLiquid
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โˆ’1445.7โ€“โ€“โ€“
per 1 mol of
โˆ’103.26โ€“โ€“โ€“
per 1 mol of
โˆ’361.43โ€“โ€“โ€“
โˆ’1445.7โ€“โ€“โ€“
per 1 mol of
โˆ’120.48โ€“โ€“โ€“
per 1 mol of
โˆ’206.53โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of lithium hydroxide and boron trifluoride
14LiOHIonized aqueous solution + 4BF3Gas
๐Ÿ’ง
โŸถ
Li2B4O7โ†“Crystalline solid + 12LiFโ†“Crystalline solid + 7H2OLiquid
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โˆ’1116.0โ€“โ€“โ€“
per 1 mol of
โˆ’79.714โ€“โ€“โ€“
per 1 mol of
โˆ’279.00โ€“โ€“โ€“
โˆ’1116.0โ€“โ€“โ€“
per 1 mol of
โˆ’93.000โ€“โ€“โ€“
per 1 mol of
โˆ’159.43โ€“โ€“โ€“

Changes in aqueous solution (2)

Reaction of lithium hydroxide and boron trifluoride
14LiOHUn-ionized aqueous solution + 4BF3Gas
๐Ÿ’ง
โŸถ
Li2B4O7โ†“Crystalline solid + 12LiFโ†“Crystalline solid + 7H2OLiquid
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
โˆ’1117.2โ€“โ€“โ€“
per 1 mol of
โˆ’79.800โ€“โ€“โ€“
per 1 mol of
โˆ’279.30โ€“โ€“โ€“
โˆ’1117.2โ€“โ€“โ€“
per 1 mol of
โˆ’93.100โ€“โ€“โ€“
per 1 mol of
โˆ’159.60โ€“โ€“โ€“

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
LiOH (cr)-484.93[1]-438.95[1]42.80[1]49.66[1]
LiOH (g)-238.1[1]-242.3[1]210.90[1]46.02[1]
LiOH (ai)-508.48[1]-450.58[1]2.80[1]-79.9[1]
LiOH (ao)-508.4[1]-451.8[1]7.1[1]โ€“
LiOH (cr)
1 hydrate
-788.01[1]-680.95[1]71.21[1]79.50[1]
BF3 (g)-1137.00[1]-1120.33[1]254.12[1]50.46[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
Li2B4O7 (cr)-3390.3[1]โ€“โ€“โ€“
Li2B4O7 (vit)-3342.2[1]โ€“โ€“โ€“
LiF (cr)-615.97[1]-587.71[1]35.65[1]41.59[1]
LiF (g)-339.82[1]-360.64[1]200.297[1]31.30[1]
LiF (ai)-611.12[1]-571.9[1]-0.4[1]-38.07[1]
H2O (cr)โ€“โ€“โ€“โ€“
H2O (l)-285.830[1]-237.129[1]69.91[1]75.291[1]
H2O (g)-241.818[1]-228.572[1]188.825[1]33.577[1]
* (cr):Crystalline solid, (vit):Vitreous liquid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)