Find equation 40 for elemental sulfur not SO2 reaction with potassium permanganate solution

Two reactions may occur (to add sulfuric acid or other acids), which may be mixed together, depending on the concentration of the reactants.

Under standard conditions, the electrode potential:

mn(vii) (iv) mno4 2h2o 3e mno2 4oh (anode potential:

s(vi)－(iv) so42－＋h2o＋2e－＝so32－＋2oh－ －

The electrode potential for the oxidation of sulfur to sulfite ions is not found, but it is certain that the electrode potential is definitely lower than that under acidic conditions.

Acidity: S(IV) (0) H2SO3 4H4E S 3H2O cathode potential <

Since the anode potential is greater than the cathode potential, the reaction can proceed spontaneously.

Because sulfur acts as the cathode, the lower the potential, the easier it is for the reaction to proceed.

Obviously, under neutral conditions, permanganate can directly oxidize elemental sulfur to sulfate ions.

It is important to note that the reaction here is actually difficult to carry out, as the resulting insoluble manganese dioxide easily adheres to the sulfur and prevents the reaction from proceeding. It's about the same as passivation.

If sulfuric acid is present, it can be reacted under acidic conditions, and the reduction product is divalent manganese ions.

The reaction formula is 5S+6kmNO4+4H2SO4=3K2SO4+6MnSO4+4H2O

5s+2kmno4+3h2so4=5so2+k2so4+2mnso4+3h2o

When the concentration of sulfate ions is low, the first reaction generally occurs, and when the concentration of sulfate ions is high, the second reaction will occur.

Electrode potential: Mn(vii) (ii) mno4 8h 5e mn2 4h2o

s(iv)－(0) h2so3＋4h＋＋4e－＝s＋3h2o

s(vi)－(iv) so42－＋4h＋＋2e－＝h2so3＋h2o

Here sulfur is more easily oxidized to sulfuric acid)

It should be sulfate, and a sufficient amount of potassium permanganate should be used here, so the reaction equation is 5S + 2kmNO4 + 3H2SO4 = 5SO2 + K2SO4 + 2MnSO4 + 3H2O

5s+2kmno4+3h2so4=5so2+k2so4+2mnso4+3h2o

It is also possible to generate SO42, mainly depending on the oxidation of KMno4.

5s+6kmno4+4h2so4=3k2so4+6mnso4+4h2o

The following reactions mainly occur in a neutral environment.

2kmn04+3h2s==2mNO2+2koh+3s+2h20The potassium permanganate we generally use is acidified with sulfuric acid, because the oxidation of potassium permanganate is stronger in an acidic environment: the following reactions will occur under acidic conditions:

8kmno4+5h2s+7h2so4==8mnso4+4k2so4+12h2o

What does potassium permanganate react with sodium thiosulfate to produce? Chemical equation?

Dear, glad this question was generated: manganese dioxide, potassium manganate, sodium sulfate, sulfur. Chemical equation?

2Na S O +2kmNo = MNO +K MNO +2Na So +2S potassium permanganate is one of the strongest oxidants, which is greatly affected by pH as an oxidant and has the strongest oxidizing ability in acidic solutions. Its corresponding acid permanganate eggplant and acid anhydride are strong oxidants, which can automatically decompose and heat, and cause combustion in contact with organic matter. Hope it helps you get to the point of trembling

5so2+2kmno4+2h2o=k2so4+2mnso4+2h2so4

Potassium permanganate (KMno4, relative molecular weight =, inorganic compound, dark purple elongated orthorhombic columnar crystals with metallic luster. Orthorhombic crystal system. It was discovered by Westerners in 1659. Chinese common name: gray manganese oxygen.

In the production of chemicals, it is widely used as an oxidizing agent, such as an oxidant for saccharin, vitamin C, isoniazid and benzoic acid; used as preservative, disinfectant, deodorant and antidote in medicine; In water purification and wastewater treatment, it is used as a water treatment agent to oxidize hydrogen sulfide, phenol, iron, manganese and various pollutants such as organic and inorganic to control odor and decolorization; In gas purification, trace sulfur, arsenic, phosphorus, silane, borane and sulfide can be removed; In mining metallurgy, oxidants for the separation of molybdenum from copper, the removal of impurities from zinc and cadmium, and the flotation of compounds; It is also used as a bleaching agent for special fabrics, waxes, greases and resins, an adsorbent for gas masks, and a colorant for wood and copper. And disgusted.

Sulfur dioxide (chemical formula SO2) is the most common and simple sulfur oxide. One of the main pollutants in the atmosphere. The gas is emitted when volcanoes erupt, and sulfur dioxide is also produced in many industrial processes.

Since coal and oil usually contain sulfur, sulfur dioxide is formed when burned. When sulphur dioxide is dissolved in water, sulphurous acid is formed. If sulfurous acid is further oxidized under the present conditions, sulfuric acid (the main component of acid rain) will be formed quickly and efficiently.

This is one of the reasons for concerns about the environmental effects of using these fuels as an energy source.

Reaction Equation:

5so2 + 2kmno4 + 2h2o ==k2so4 + 2mnso4 + 2h2so4

Tongkong ridge is commonly used dilute sulfuric acidified mid-grade potassium permanganate to sell losses.