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3CaCl2 + Fe2(SO4)3 ๐Ÿ’งโ†’ 3CaSO4โ†“ + 2FeCl3

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Reaction of calcium chloride and iron(III) sulfate
3CaCl2Calcium chloride + Fe2(SO4)3Iron(III) sulfate
๐Ÿ’ง
โŸถ
3CaSO4โ†“Calcium sulfate + 2FeCl3Iron(III) chloride

The reaction of calcium chloride and iron(III) sulfate yields calcium sulfate and iron(III) chloride. 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 calcium chloride and iron(III) sulfate
3CaCl2Calcium chloride + Fe2(SO4)3Iron(III) sulfate
๐Ÿ’ง
โŸถ
3CaSO4โ†“Calcium sulfate + 2FeCl3Iron(III) chloride

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 calcium chloride and iron(III) sulfate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CaCl2Calcium chloride3
Lewis acid
Very soluble in water
Fe2(SO4)3Iron(III) sulfate1
Lewis base
Soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaSO4Calcium sulfate3
Lewis conjugate
Slightly soluble in water
FeCl3Iron(III) chloride2
Non-redox product
โ€“

Thermodynamic changes

Changes in standard condition (1)

Reaction of calcium chloride and iron(III) sulfate
3CaCl2Crystalline solid + Fe2(SO4)3Crystalline solid
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidinsoluble, anhydrite + 2FeCl3Crystalline solid
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’132.4โ€“โ€“โ€“
per 1 mol of
โˆ’44.13โ€“โ€“โ€“
per 1 mol of
โˆ’132.4โ€“โ€“โ€“
per 1 mol of
โˆ’44.13โ€“โ€“โ€“
per 1 mol of
โˆ’66.20โ€“โ€“โ€“

Changes in standard condition (2)

Reaction of calcium chloride and iron(III) sulfate
3CaCl2Crystalline solid + Fe2(SO4)3Crystalline solid
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฑ + 2FeCl3Crystalline solid
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’105.8โ€“โ€“โ€“
per 1 mol of
โˆ’35.27โ€“โ€“โ€“
per 1 mol of
โˆ’105.8โ€“โ€“โ€“
per 1 mol of
โˆ’35.27โ€“โ€“โ€“
per 1 mol of
โˆ’52.90โ€“โ€“โ€“

Changes in standard condition (3)

Reaction of calcium chloride and iron(III) sulfate
3CaCl2Crystalline solid + Fe2(SO4)3Crystalline solid
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฒ + 2FeCl3Crystalline solid
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’92.5โ€“โ€“โ€“
per 1 mol of
โˆ’30.8โ€“โ€“โ€“
per 1 mol of
โˆ’92.5โ€“โ€“โ€“
per 1 mol of
โˆ’30.8โ€“โ€“โ€“
per 1 mol of
โˆ’46.3โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’83.5 kJ/mol
K4.25 ร— 1014
pKโˆ’14.63
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidinsoluble, anhydrite + 2FeCl3Un-ionized aqueous solution
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
โ€“โˆ’83.5โ€“โ€“
per 1 mol of
โ€“โˆ’27.8โ€“โ€“
per 1 mol of
โ€“โˆ’83.5โ€“โ€“
per 1 mol of
โ€“โˆ’27.8โ€“โ€“
per 1 mol of
โ€“โˆ’41.8โ€“โ€“

Changes in aqueous solution (2)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’71.1 kJ/mol
K2.86 ร— 1012
pKโˆ’12.46
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidinsoluble, anhydrite + 2FeCl3Ionized aqueous solution
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
53.7โˆ’71.1419.4โ€“
per 1 mol of
17.9โˆ’23.7139.8โ€“
per 1 mol of
53.7โˆ’71.1419.4โ€“
per 1 mol of
17.9โˆ’23.7139.8โ€“
per 1 mol of
26.9โˆ’35.5209.7โ€“

Changes in aqueous solution (3)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’58.4 kJ/mol
K1.70 ร— 1010
pKโˆ’10.23
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฑ + 2FeCl3Un-ionized aqueous solution
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
โ€“โˆ’58.4โ€“โ€“
per 1 mol of
โ€“โˆ’19.5โ€“โ€“
per 1 mol of
โ€“โˆ’58.4โ€“โ€“
per 1 mol of
โ€“โˆ’19.5โ€“โ€“
per 1 mol of
โ€“โˆ’29.2โ€“โ€“

Changes in aqueous solution (4)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’46.0 kJ/mol
K1.15 ร— 108
pKโˆ’8.06
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฑ + 2FeCl3Ionized aqueous solution
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
80.3โˆ’46.0424.5โ€“
per 1 mol of
26.8โˆ’15.3141.5โ€“
per 1 mol of
80.3โˆ’46.0424.5โ€“
per 1 mol of
26.8โˆ’15.3141.5โ€“
per 1 mol of
40.1โˆ’23.0212.3โ€“

Changes in aqueous solution (5)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’45.1 kJ/mol
K7.96 ร— 107
pKโˆ’7.90
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฒ + 2FeCl3Un-ionized aqueous solution
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
โ€“โˆ’45.1โ€“โ€“
per 1 mol of
โ€“โˆ’15.0โ€“โ€“
per 1 mol of
โ€“โˆ’45.1โ€“โ€“
per 1 mol of
โ€“โˆ’15.0โ€“โ€“
per 1 mol of
โ€“โˆ’22.6โ€“โ€“

Changes in aqueous solution (6)

Reaction of calcium chloride and iron(III) sulfate
โ—†
ฮ”rGโˆ’32.7 kJ/mol
K5.36 ร— 105
pKโˆ’5.73
3CaCl2Ionized aqueous solution + Fe2(SO4)3Ionized aqueous solution
๐Ÿ’ง
โŸถ
3CaSO4โ†“Crystalline solidsoluble, ฮฒ + 2FeCl3Ionized aqueous solution
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
93.6โˆ’32.7424.5โ€“
per 1 mol of
31.2โˆ’10.9141.5โ€“
per 1 mol of
93.6โˆ’32.7424.5โ€“
per 1 mol of
31.2โˆ’10.9141.5โ€“
per 1 mol of
46.8โˆ’16.4212.3โ€“

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
CaCl2 (cr)-795.8[1]-748.1[1]104.6[1]72.59[1]
CaCl2 (g)-471.5[1]-479.24[1]290.27[1]59.33[1]
CaCl2 (ai)-877.13[1]-816.01[1]59.8[1]โ€“
CaCl2 (cr)
1 hydrate
-1109.2[1]โ€“โ€“โ€“
CaCl2 (cr)
2 hydrate
-1402.9[1]โ€“โ€“โ€“
CaCl2 (cr)
4 hydrate
-2009.6[1]โ€“โ€“โ€“
CaCl2 (cr)
6 hydrate
-2607.9[1]โ€“โ€“โ€“
Fe2(SO4)3 (cr)-2581.5[1]โ€“โ€“โ€“
Fe2(SO4)3 (ai)-2825.0[1]-2242.8[1]-571.5[1]โ€“
* (cr):Crystalline solid, (g):Gas, (ai):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
CaSO4 (cr)
insoluble, anhydrite
-1434.11[1]-1321.79[1]106.7[1]99.66[1]
CaSO4 (cr)
soluble, ฮฑ
-1425.24[1]-1313.42[1]108.4[1]100.21[1]
CaSO4 (cr)
soluble, ฮฒ
-1420.80[1]-1308.98[1]108.4[1]99.04[1]
CaSO4 (ai)-1452.10[1]-1298.10[1]-33.1[1]โ€“
CaSO4 (cr)
0.5 hydrate
macrocrystalline, ฮฑ
-1576.74[1]-1436.74[1]130.5[1]119.41[1]
CaSO4 (cr)
0.5 hydrate
microcrystalline, ฮฒ
-1574.65[1]-1435.78[1]134.3[1]124.22[1]
CaSO4 (cr)
2 hydrate
selenite
-2022.63[1]-1797.28[1]194.1[1]186.02[1]
FeCl3 (cr)-399.49[1]-334.00[1]142.3[1]96.65[1]
FeCl3 (g)-254.0[1]โ€“โ€“โ€“
FeCl3 (ai)-550.2[1]-398.3[1]-146.4[1]โ€“
FeCl3 (ao)โ€“-404.5[1]โ€“โ€“
FeCl3 (cr)
6 hydrate
-2223.8[1]โ€“โ€“โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (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)