The chemical equation for the reaction of acidic potassium permanganate with sulfur dioxide

Acidic potassium permanganate.

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 commonly known as:

Gray manganese oxygen. In the production of chemicals, it is widely used as an oxidant, such as saccharin, vitamin C

Isoniazid and benzoic acid.

of oxidants; 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 organic, inorganic and other pollutants 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.

Sulfur dioxide (chemical formula SO2) is the most common and simple sulfur oxide. One of the main pollutants in the atmosphere. This gas is ejected 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 existing conditions, sulfuric acid (acid rain) will be formed quickly and efficiently.

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

Potassium permanganate and sulfur dioxide can only react under acidic conditions, and we also commonly use acidic potassium permanganate solution to remove SO2, the chemical equation is.

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

Generally, acidic potassium permanganate solution is used, because it has the best oxidation effect, of course, it can be reacted under neutral and alkaline conditions, and it should be used to generate potassium manganate (K2MNO4) or manganese dioxide.

You should know this knowledge point in high school.

Acidic potassium permanganate has strong oxidizing properties, and SO2 is oxidized.

So the chemical equation is:

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

Potassium permanganate reacts with sulfur dioxide.

The chemical equation is 5SO2 + 2KMno4 + 2H2O = K2SO4 + 2MNSO4 + 2H2SO4

The ionic equation is 5SO2 + 2MNO4- +2H2O = 2 Mn2+ +4H+ +5SO42-

The reaction equation of sulfur dioxide and potassium permanganate is: 5SO2 + 2KMno4 + 2H2O = K2SO4 + 2MNSO4 + 2H2SO4.

Potassium permanganate is one of the strongest oxidants, as an oxidant is greatly affected by pH, and has the strongest oxidation ability in acidic solutions. Its corresponding acids permanganate HMNO4 and anhydride Mn2O7 are strong oxidants, which can automatically decompose and heat, and cause combustion in contact with organic matter.

At room temperature, moist sulfur dioxide reacts with hydrogen sulfide to precipitate sulfur. At high temperature and in the presence of a catalyst, it can be reduced by hydrogen to hydrogen sulfide and carbon monoxide to sulfur.

Strong oxidants can oxidize sulfur dioxide to sulfur trioxide, and oxygen can oxidize sulfur dioxide to sulfur trioxide only in the presence of a catalyst. It has spontaneous combustion, non-combustibility. Liquid sulfur dioxide can dissolve organic compounds such as amines, ethers, alcohols, phenols, organic acids, aromatic hydrocarbons, etc., and most saturated hydrocarbons cannot be dissolved.

It has a certain water solubility, and reacts with water and water vapor to form toxic and corrosive vapors.

Applications:

Potassium permanganate: widely used as an oxidant in the production of chemicals, 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 organic, inorganic and other pollutants to control odor and decolorization. It is also used as bleach, adsorbent, colorant and disinfectant.

Sulfur dioxide: used as organic solvent and refrigerant, and used in refining various lubricating oils. It is mainly used in the production of sulfur trioxide, sulfuric acid, sulfite, thiosulfate, and is also used as fumigant, preservative, disinfectant, reducing agent, etc.

The above content reference: Encyclopedia - potassium permanganate.

The above content reference: Encyclopedia - Sulfur Dioxide.

Sulfurous acid (only used as a reducing agent) reacts with potassium permanganate acidified with sulfuric acid and KmNO4, and sulfurous acid (as an acid donor and reducing agent) reacts with pure acid-free potassium permanganate solution. The grounding of the branch space gradually changed to the following: sulfur dioxide SLO2 reacted with potassium permanganate solution.

Potassium permanganate can only be combined with sulfur dioxide in the presence of water.

Anti-sail infiltration. Potassium permanganate oxidizes sulfurous acid to sulfuric acid, which is reduced and reacts with sulfuric acid to form potassium manganate, which fades the solution.

The chemical equation for the reaction of sulfur dioxide with potassium permanganate.

For: 2kmNO4 + 5SO2 + 2H2O = 2mnSO4 + 2H2SO4 + K2SO4, because the reduction product of potassium permanganate potassium manganate has almost no color, and the sulfuric acid of sulfur dioxide oxide is also colorless, so the reaction of sulfur dioxide and potassium permanganate will make potassium permanganate solution.

Fade. The chemical equation is 5SO2 + 2KMno4 + 2H2O = K2SO4 + 2MNSO4 + 2H2SO4

The ionic equation is 5SO2 + 2MNO4- +2H2O = 2 Mn2+ +4H+ +5SO42-

The chemical equation of sulfur dioxide and acidic potassium permanganate solution collides vertically:

5so2＋2kmno4＋2h2o＝k2so4＋2mnso4＋2h2so4

The ionic equation for the reaction of sulfur dioxide with an acidic potassium permanganate solution:

5so2＋2（mno4－）＋2h2o＝5（so42－）＋2（mn2＋）＋4（h＋）