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5CH3COONa + 4HNO3 → 4NaCN + NaHCO3 + 5H2CO3 + 4H2O

The reaction of sodium acetate and nitric acid yields sodium cyanide, sodium hydrogencarbonate, carbonic acid, 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

Reaction of sodium acetate and nitric acid

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CH3COONaSodium acetate5
Reducing
Reducing
HNO3Nitric acid4
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaCNSodium cyanide4
Redoxed product
NaHCO3Sodium hydrogencarbonate1
Oxidized
H2CO3Carbonic acid5
Oxidized
H2OWater4

Thermodynamic changes

Changes in standard condition (1)

Reaction of sodium acetate and nitric acid
ΔrG−1669.6 kJ/mol
K3.17 × 10292
pK−292.50
5CH3COONaIonized aqueous solution + 4HNO3Ionized aqueous solution
4NaCNIonized aqueous solution + NaHCO3Ionized aqueous solution + 5H2CO3Un-ionized aqueous solution + 4H2OLiquid
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
−1471.6−1669.6665.6
per 1 mol of
−294.32−333.92133.1
per 1 mol of
−367.90−417.40166.4
per 1 mol of
−367.90−417.40166.4
−1471.6−1669.6665.6
per 1 mol of
−294.32−333.92133.1
per 1 mol of
−367.90−417.40166.4

Changes in standard condition (2)

Reaction of sodium acetate and nitric acid
ΔrG−1670.6 kJ/mol
K4.75 × 10292
pK−292.68
5CH3COONaIonized aqueous solution + 4HNO3Ionized aqueous solution
4NaCNIonized aqueous solution + NaHCO3Un-ionized aqueous solution + 5H2CO3Un-ionized aqueous solution + 4H2OLiquid
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
−1483.4−1670.6629.2
per 1 mol of
−296.68−334.12125.8
per 1 mol of
−370.85−417.65157.3
per 1 mol of
−370.85−417.65157.3
−1483.4−1670.6629.2
per 1 mol of
−296.68−334.12125.8
per 1 mol of
−370.85−417.65157.3

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
CH3COONa (cr)-708.81[1]-607.18[1]123.0[1]79.9[1]
CH3COONa (ai)-726.13[1]-631.20[1]145.6[1]40.2[1]
CH3COONa (cr)
3 hydrate
-1603.3[1]-1328.6[1]243[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, (ai):Ionized aqueous solution, (l):Liquid, (g):Gas

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
NaCN (cr)
cubic
-87.49[1]-76.43[1]115.60[1]70.37[1]
NaCN (cr)
orthorhombic
-90.75[1]
NaCN (g)109[1]79.94[1]249.43[1]51.17[1]
NaCN (ai)-89.5[1]-89.5[1]153.1[1]
NaCN (cr)
1/2 hydrate
-235.77[1]
NaCN (cr)
2 hydrate
-679.77[1]
NaHCO3 (cr)-950.81[1]-851.0[1]101.7[1]87.61[1]
NaHCO3 (ai)-932.11[1]-848.66[1]150.2[1]
NaHCO3 (ao)-943.9[1]-849.7[1]113.8[1]
H2CO3 (ao)-699.65[1]-623.08[1]187.4[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, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-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)