Home
Chemical reactions
3SrS + 8KMnO4 → 3SrSO4 + 8MnO2 + 4K2O

3SrS + 8KMnO₄ → 3SrSO₄ + 8MnO₂ + 4K₂O

Last updated: June 13, 2022

Reaction of strontium sulfide and potassium permanganate: 3SrSStrontium sulfide + 8KMnO₄Potassium permanganate
⟶
3SrSO₄Strontium sulfate + 8MnO₂Manganese(IV) oxide + 4K₂OPotassium oxide

The reaction of strontium sulfide and potassium permanganate yields strontium sulfate, manganese(IV) oxide, and potassium oxide (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Reaction of reducing species and oxidizing species

Table of contents

Reaction data

Chemical equation

Reaction of strontium sulfide and potassium permanganate: 3SrSStrontium sulfide + 8KMnO₄Potassium permanganate
⟶
3SrSO₄Strontium sulfate + 8MnO₂Manganese(IV) oxide + 4K₂OPotassium oxide

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 strontium sulfide and potassium permanganate

Reactants

Chemical formula	Name	Coefficient	Type	Type in general equation
SrS	Strontium sulfide	3	Reducing	Reducing
KMnO₄	Potassium permanganate	8	Oxidizing	Oxidizing

Products

Chemical formula	Name	Coefficient	Type	Type in general equation
SrSO₄	Strontium sulfate	3	Oxidized	–
MnO₂	Manganese(IV) oxide	8	Reduced	–
K₂O	Potassium oxide	4	–	–

Thermodynamic changes

Changes in standard condition (1)

Reaction of strontium sulfide and potassium permanganate ◆ Δ_rG −1728.0 kJ/mol K 5.40 × 10³⁰² pK −302.73: 3SrSCrystalline solid + 8KMnO₄Crystalline solid
⟶
3SrSO₄Crystalline solid + 8MnO₂Crystalline solid + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−1850.7	−1728.0	−426	–
per 1 mol of Strontium sulfide	−616.90	−576.00	−142	–
per 1 mol of Potassium permanganate	−231.34	−216.00	−53.3	–
per 1 mol of Strontium sulfate	−616.90	−576.00	−142	–
per 1 mol of Manganese(IV) oxide	−231.34	−216.00	−53.3	–
per 1 mol of Potassium oxide	−462.68	−432.00	−107	–

Changes in standard condition (2)

Reaction of strontium sulfide and potassium permanganate: 3SrSCrystalline solid + 8KMnO₄Crystalline solid
⟶
3SrSO₄Crystalline solid + 8MnO₂Amorphous solidprecipitated + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−1710.5	–	–	–
per 1 mol of Strontium sulfide	−570.17	–	–	–
per 1 mol of Potassium permanganate	−213.81	–	–	–
per 1 mol of Strontium sulfate	−570.17	–	–	–
per 1 mol of Manganese(IV) oxide	−213.81	–	–	–
per 1 mol of Potassium oxide	−427.63	–	–	–

Changes in standard condition (3)

Reaction of strontium sulfide and potassium permanganate: 3SrSCrystalline solid + 8KMnO₄Crystalline solid
⟶
3SrSO₄Crystalline solidprecipitated + 8MnO₂Crystalline solid + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−1840.8	–	–	–
per 1 mol of Strontium sulfide	−613.60	–	–	–
per 1 mol of Potassium permanganate	−230.10	–	–	–
per 1 mol of Strontium sulfate	−613.60	–	–	–
per 1 mol of Manganese(IV) oxide	−230.10	–	–	–
per 1 mol of Potassium oxide	−460.20	–	–	–

Changes in standard condition (4)

Reaction of strontium sulfide and potassium permanganate: 3SrSCrystalline solid + 8KMnO₄Crystalline solid
⟶
3SrSO₄Crystalline solidprecipitated + 8MnO₂Amorphous solidprecipitated + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−1700.6	–	–	–
per 1 mol of Strontium sulfide	−566.87	–	–	–
per 1 mol of Potassium permanganate	−212.57	–	–	–
per 1 mol of Strontium sulfate	−566.87	–	–	–
per 1 mol of Manganese(IV) oxide	−212.57	–	–	–
per 1 mol of Potassium oxide	−425.15	–	–	–

Changes in aqueous solution (1)

Reaction of strontium sulfide and potassium permanganate ◆ Δ_rG −1784.8 kJ/mol K 4.82 × 10³¹² pK −312.68: 3SrSCrystalline solid + 8KMnO₄Ionized aqueous solution
⟶
3SrSO₄Crystalline solid + 8MnO₂Crystalline solid + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−2197.9	−1784.8	−1402	–
per 1 mol of Strontium sulfide	−732.63	−594.93	−467.3	–
per 1 mol of Potassium permanganate	−274.74	−223.10	−175.3	–
per 1 mol of Strontium sulfate	−732.63	−594.93	−467.3	–
per 1 mol of Manganese(IV) oxide	−274.74	−223.10	−175.3	–
per 1 mol of Potassium oxide	−549.48	−446.20	−350.5	–

Changes in aqueous solution (2)

Reaction of strontium sulfide and potassium permanganate: 3SrSCrystalline solid + 8KMnO₄Ionized aqueous solution
⟶
3SrSO₄Crystalline solidprecipitated + 8MnO₂Crystalline solid + 4K₂OCrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−2188.0	–	–	–
per 1 mol of Strontium sulfide	−729.33	–	–	–
per 1 mol of Potassium permanganate	−273.50	–	–	–
per 1 mol of Strontium sulfate	−729.33	–	–	–
per 1 mol of Manganese(IV) oxide	−273.50	–	–	–
per 1 mol of Potassium oxide	−547.00	–	–	–

Thermodynamic data of reactants

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
SrS (cr)	-472.4^[1]	-467.8^[1]	68.2^[1]	48.70^[1]
SrS (g)	109^[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]

* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
SrSO₄ (cr)	-1453.1^[1]	-1340.9^[1]	117^[1]	–
SrSO₄ (cr) precipitated	-1449.8^[1]	–	–	–
SrSO₄ (ai)	-1455.07^[1]	-1304.00^[1]	-12.6^[1]	–
MnO₂ (cr)	-520.03^[1]	-465.14^[1]	53.05^[1]	54.14^[1]
MnO₂ (am) precipitated	-502.5^[1]	–	–	–
K₂O (cr)	-361.5^[1]	-322.1^[2]	94.1^[2]	83.7^[2]
K₂O (g)	-63^[1]	–	–	–

* (cr):Crystalline solid, (ai):Ionized aqueous solution, (am):Amorphous solid, (g):Gas

References

List of references

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
https://doi.org/10.18434/M32124
National Institute of Standards and Technology (NIST)
Citation list
2
James G. Speight (2017)
Lange's Handbook of Chemistry, 17th edition
https://www.accessengineeringlibrary.com/content/book/9781259586095
McGraw Hill Education
- Amazon
Citation list
- ^ Δ_fG°, -322.1 kJ · mol⁻¹ - p.280
- ^ S°, 94.1 J · K⁻¹ · mol⁻¹ - p.280
- ^ C_p°, 83.7 J · K⁻¹ · mol⁻¹ - p.280

Δ_rG	−1728.0 kJ/mol
K	5.40 × 10³⁰²
pK	−302.73

Δ_rG	−1784.8 kJ/mol
K	4.82 × 10³¹²
pK	−312.68

3SrS + 8KMnO4 → 3SrSO4 + 8MnO2 + 4K2O

Reaction data

Chemical equation

General equation

Oxidation state of each atom

Reactants

Products

Thermodynamic changes

Changes in standard condition (1)

Changes in standard condition (2)

Changes in standard condition (3)

Changes in standard condition (4)

Changes in aqueous solution (1)

Changes in aqueous solution (2)

Thermodynamic data of reactants

Thermodynamic data of products

References

List of references

Related reactions

Reactions with same reactants

Related categories

Type of reaction

General equation

Reactant

Product

3SrS + 8KMnO₄ → 3SrSO₄ + 8MnO₂ + 4K₂O