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7Li2SO3 + 16HNO3 → 14LiNO3 + 7SO3 + N2H4 + 6H2O

The reaction of lithium sulfite and nitric acid yields lithium nitrate, sulfur trioxide, hydrazine, and water (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

General equation

Reaction of reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Li2SO3Lithium sulfite7
Reducing
Reducing
HNO3Nitric acid16
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
LiNO3Lithium nitrate14
SO3Sulfur trioxide7
Oxidized
N2H4Hydrazine1
Reduced
H2OWater6

Thermodynamic changes

Changes in standard condition

Reaction of lithium sulfite and nitric acid
7Li2SO3Crystalline solid + 16HNO3Liquid
14LiNO3Crystalline solid + 7SO3Liquid + N2H4Liquid + 6H2OLiquid
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
−490.8
per 1 mol of
−70.11
per 1 mol of
−30.68
per 1 mol of
−35.06
per 1 mol of
−70.11
per 1 mol of
−490.8
per 1 mol of
−81.80

Changes in aqueous solution (1)

Reaction of lithium sulfite and nitric acid
7Li2SO3Crystalline solid + 16HNO3Ionized aqueous solution
14LiNO3Ionized aqueous solution + 7SO3Crystalline solidβ + N2H4Un-ionized aqueous solution + 6H2OLiquid
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
−107.4
per 1 mol of
−15.34
per 1 mol of
−6.713
per 1 mol of
−7.671
per 1 mol of
−15.34
per 1 mol of
−107.4
per 1 mol of
−17.90

Changes in aqueous solution (2)

Reaction of lithium sulfite and nitric acid
7Li2SO3Crystalline solid + 16HNO3Ionized aqueous solution
14LiNO3Un-ionized aqueous solution + 7SO3Crystalline solidβ + N2H4Un-ionized aqueous solution + 6H2OLiquid
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
per 1 mol of
per 1 mol of
per 1 mol of
per 1 mol of
per 1 mol of
per 1 mol of

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
Li2SO3 (cr)-1177.0[1]
HNO3 (l)-174.10[1]-80.71[1]155.60[1]109.87[1]
HNO3 (g)-135.06[1]-74.72[1]266.38[1]53.35[1]
HNO3 (ai)-207.36[1]-111.25[1]146.4[1]-86.6[1]
HNO3 (l)
1 hydrate
-473.46[1]-328.77[1]216.90[1]182.46[1]
HNO3 (l)
3 hydrate
-1056.04[1]-811.09[1]346.98[1]325.14[1]
* (cr):Crystalline solid, (l):Liquid, (g):Gas, (ai):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]
SO3 (cr)
β
-454.51[1]-374.21[1]70.7[1]
SO3 (l)-441.04[1]-373.75[1]113.8[1]
SO3 (g)-395.72[1]-371.06[1]256.76[1]50.67[1]
N2H4 (l)50.63[1]149.34[1]121.21[1]98.87[1]
N2H4 (g)95.40[1]159.35[1]238.47[1]49.58[1]
N2H4 (ao)34.31[1]128.1[1]138[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]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (l):Liquid, (g):Gas

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)