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  3. 5LiNO2 + 2KMnO4 + 6H^+ → LiNO3 + 4Li^+ + 2Mn(NO3)2 + 3H2O + 2K^+

5LiNO2 + 2KMnO4 + 6H+ → LiNO3 + 4Li+ + 2Mn(NO3)2 + 3H2O + 2K+

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Reaction of lithium nitrite and potassium permanganate under acidic condition
5LiNO2Lithium nitrite + 2KMnO4Potassium permanganate + 6H+Hydrogen ion
⟶
LiNO3Lithium nitrate + 4Li+Lithium ion + 2Mn(NO3)2Manganese(II) nitrate + 3H2OWater + 2K+Potassium ion

The reaction of lithium nitrite, potassium permanganate, and hydrogen ion yields lithium nitrate, lithium ion, manganese(II) nitrate, water, and potassium ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Reaction of lithium nitrite and potassium permanganate under acidic condition
5LiNO2Lithium nitrite + 2KMnO4Potassium permanganate + 6H+Hydrogen ion
⟶
LiNO3Lithium nitrate + 4Li+Lithium ion + 2Mn(NO3)2Manganese(II) nitrate + 3H2OWater + 2K+Potassium ion

General equation

Reaction of oxidizable species and oxidizing species under acidic condition
Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent
⟶
ProductOxidation product + ProductReduction product + H2ONon-redox product

Oxidation state of each atom

Reaction of lithium nitrite and potassium permanganate under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
LiNO2Lithium nitrite5
Reducing
Oxidizable
KMnO4Potassium permanganate2
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion6
–
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
LiNO3Lithium nitrate1
Oxidized
–
Li+Lithium ion4
–
–
Mn(NO3)2Manganese(II) nitrate2
Redoxed product
–
H2OWater3
–
Water
K+Potassium ion2
–
–

Thermodynamic changes

Changes in standard condition (1)

Reaction of lithium nitrite and potassium permanganate under acidic condition
◆
ΔrG−669.0 kJ/mol
K1.60 × 10117
pK−117.20
5LiNO2Ionized aqueous solution + 2KMnO4Ionized aqueous solution + 6H+Un-ionized aqueous solution
⟶
LiNO3Ionized aqueous solution + 4Li+Un-ionized aqueous solution + 2Mn(NO3)2Ionized aqueous solution + 3H2OLiquid + 2K+Un-ionized aqueous solution
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1		Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1		Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1		Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
−730.0−669.0−207549
per 1 mol of
−146.0−133.8−41.4110
−365.0−334.5−104275
per 1 mol of
Hydrogen ion
−121.7−111.5−34.591.5
per 1 mol of
−730.0−669.0−207549
per 1 mol of
Lithium ion
−182.5−167.3−51.8137
−365.0−334.5−104275
per 1 mol of
−243.3−223.0−69.0183
per 1 mol of
Potassium ion
−365.0−334.5−104275

Changes in standard condition (2)

Reaction of lithium nitrite and potassium permanganate under acidic condition
◆
ΔrG−671.1 kJ/mol
K3.73 × 10117
pK−117.57
5LiNO2Ionized aqueous solution + 2KMnO4Ionized aqueous solution + 6H+Un-ionized aqueous solution
⟶
LiNO3Un-ionized aqueous solution + 4Li+Un-ionized aqueous solution + 2Mn(NO3)2Ionized aqueous solution + 3H2OLiquid + 2K+Un-ionized aqueous solution
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1		Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1		Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1		Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
–−671.1––
per 1 mol of
–−134.2––
–−335.6––
per 1 mol of
Hydrogen ion
–−111.9––
per 1 mol of
–−671.1––
per 1 mol of
Lithium ion
–−167.8––
–−335.6––
per 1 mol of
–−223.7––
per 1 mol of
Potassium ion
–−335.6––

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1		Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1		Standard
molar entropy
S°
J · K−1 · mol−1		Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
LiNO2 (cr)-372.4[1]-302.0[1]96[1]–
LiNO2 (ai)-383.09[1]-325.5[1]136.8[1]-28.9[1]
LiNO2 (cr)
0.5 hydrate
–-423.3[1]––
LiNO2 (cr)
1 hydrate
-676.1[1]-544.2[1]121[1]–
KMnO4 (cr)-837.2[1]-737.6[1]171.71[1]117.57[1]
KMnO4 (ai)-793.8[1]-730.5[1]293.7[1]-60.2[1]
H+ (g)1536.202[1]–––
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1		Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1		Standard
molar entropy
S°
J · K−1 · mol−1		Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
LiNO3 (cr)-483.13[1]-381.1[1]90.0[1]–
LiNO3 (ai)-485.85[1]-404.5[1]160.2[1]-18.0[1]
LiNO3 (ao)–-406.6[1]––
LiNO3 (cr)
3 hydrate
-1374.4[1]-1103.5[1]223.4[1]–
Li+ (g)685.783[1]–––
Li+ (ao)-278.49[1]-293.31[1]13.4[1]68.6[1]
Mn(NO3)2 (cr)-576.26[1]–––
Mn(NO3)2 (ai)-635.5[1]-450.9[1]218[1]-121[1]
Mn(NO3)2 (vit)
6 hydrate
-2371.9[1]–––
Mn(NO3)2 (l)
6 hydrate
-2331.62[1]–––
H2O (cr)––––
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]
K+ (g)514.26[1]–––
K+ (ao)-252.38[1]-283.27[1]102.5[1]21.8[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (g):Gas, (vit):Vitreous liquid, (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)