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MgI2 + Na2[Zn(OH)4] 💧→ Mg(OH)2↓ + Zn(OH)2↓ + 2NaI

Reaction of magnesium iodide and sodium tetrahydroxidozincate
MgI2Magnesium iodide + Na2[Zn(OH)4]Sodium tetrahydroxidozincate
💧
Mg(OH)2Magnesium hydroxide + Zn(OH)2Zinc hydroxide + 2NaISodium iodide

The reaction of magnesium iodide and sodium tetrahydroxidozincate yields magnesium hydroxide, zinc hydroxide, and sodium iodide. 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 magnesium iodide and sodium tetrahydroxidozincate
MgI2Magnesium iodide + Na2[Zn(OH)4]Sodium tetrahydroxidozincate
💧
Mg(OH)2Magnesium hydroxide + Zn(OH)2Zinc hydroxide + 2NaISodium iodide

General equation

Oxidation state of each atom

Reaction of magnesium iodide and sodium tetrahydroxidozincate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
MgI2Magnesium iodide1
Lewis acid
Very soluble in water
Na2[Zn(OH)4]Sodium tetrahydroxidozincate1
Lewis base
Very soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
Mg(OH)2Magnesium hydroxide1
Lewis conjugate
Insoluble in water
Zn(OH)2Zinc hydroxide1
Lewis conjugate
Insoluble in water
NaISodium iodide2
Non-redox product

Thermodynamic changes

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
MgI2 (cr)-364.0[1]-358.2[1]129.7[1]
MgI2 (g)-172[1]
MgI2 (ai)-577.22[1]-558.1[1]84.5[1]
Na2[Zn(OH)4]
* (cr):Crystalline solid, (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
Mg(OH)2 (cr)-924.54[1]-833.51[1]63.18[1]77.03[1]
Mg(OH)2 (am)
precipitated
-920.5[1]
Mg(OH)2 (g)-561[1]
Mg(OH)2 (ai)-926.84[1]-769.4[1]-159.4[1]
Zn(OH)2 (cr)
γ
-553.81[1]
Zn(OH)2 (cr)
β
-641.91[1]-553.52[1]81.2[1]
Zn(OH)2 (cr)
ε
-643.25[1]-555.07[1]81.6[1]72.4[1]
Zn(OH)2 (cr)
precipitated
-642.2[1]
Zn(OH)2 (ai)-613.88[1]-461.56[1]-133.5[1]-251[1]
Zn(OH)2 (ao)-522.73[1]
NaI (cr)-287.78[1]-286.06[1]98.53[1]52.09[1]
NaI (g)-79.5[1]-121.0[1]248.978[1]36.65[1]
NaI (ai)-295.31[1]-313.47[1]170.3[1]-95.8[1]
NaI (cr)
1 hydrate
-883.096[1]-771.10[1]196.2[1]
* (cr):Crystalline solid, (am):Amorphous solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution

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)