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Crystallized. Under alkaline conditions, potassium chlorate can turn manganese dioxide.
oxidation to potassium manganate.
Under acidic conditions, potassium manganate is converted to potassium permanganate.
Therefore, the prepared potassium manganate solid is dissolved in water, and then carbon dioxide is introduced.
gas, you can get a potassium permanganate solution. When the solution is concentrated, potassium permanganate crystals are precipitated.
Dry with swirl steaming.
It seems that it is not a fan of oil melting.
Take it out with an oil fan and wash it for two poops.
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There are a few methods that can be taken to accelerate the crystallization of potassium permanganate, some of which are as follows:
1.Stirring: Adding a stirrer, such as a stir bar or magnet, to the potassium permanganate solution can promote the formation and growth of crystals.
2.Temperature control: Increasing the temperature of the solution can speed up the crystallization process. Under the right conditions, high temperatures increase the rate of crystallization.
3.Contaminants: A small fraction of pure potassium permanganate crystals are added to the solution as seed crystals that can promote the growth of new crystals on them.
4.Filtrate: Filtration removes a portion of the dissolved solids from the solution, making crystals more likely to form in the remaining solution.
5.Bubbles: By adding bubbles, such as bubbles or an air pump, the core of the bubbles can be provided to promote crystallization.
6.Concentration: By evaporation or other methods, the concentration of potassium permanganate in the solution can be increased, which is beneficial for crystal formation.
It should be noted that the method of accelerating the crystallization of potassium permanganate should be selected on a case-by-case basis, and safety should be taken when operating to avoid hazards. If large-scale crystallization operations are required or special conditions are required, it is advisable to seek professional guidance and assistance.
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Question 1: How to clean the pure history of potassium permanganate solution Wash it with alcohol, because potassium permanganate has strong oxidizing properties, while alcohol has reducing properties. Potassium permanganate undergoes redox reaction when exposed to alcohol. It can also be pickled with vitamin C solution or thin grass.
Question 2: How to do the potassium permanganate solution if it is stained with ** What to do Removal of potassium permanganate stains.
Potassium permanganate, commonly known as gray manganese oxygen, is commonly used as a disinfectant for surgical instruments and fruits. When the clothes are stained with potassium permanganate, you can dip the vitamin C tablets in water, apply them to the stain and wipe it gently, and wipe it while dipping it in water, and the stain can be removed after a while.
Stains on your hands with potassium permanganate should also be removed in this way.
It can also be soaked in citric acid or 2% oxalic acid in water, and the stain can be removed by chemical reaction.
This method is suitable for stain removal on a wide range of materials and colours.
Question 3: How to wash off potassium permanganate Potassium manganate is a strong oxidizing agent, and it is disinfected by its strong oxidation, so if you want to get rid of him, you must use punitive chemicals or supplies.
1.Commonly used in the laboratory: sodium thiosulfate, sodium nitrite, hydrogen peroxide, citric acid, oxalic acid.
2. If you don't have the above reagents, you can use common items at home to give it a try.
Aspirin pills, which are generally found in fever reducers.
Vitamin C pills work well.
Bleaching powder can be tried.
If it gets on clothes, oxalic acid will do.
Question 4: What should I do if potassium permanganate gets on my hands Using potassium permanganate solution often stains hands and other contact parts yellow, and general detergents cannot remove them. You can scrub 1 aspirin tablet dipped in water and it will be easily washed off.
Question 5: How to use potassium permanganate solution Condition analysis: This friend, the doctor asked you to buy potassium permanganate, which is a pill, and then you have to put water yourself to make the solution is 1:
2500 or 1:5000 ratio. Suggestions:
This medicine is highly oxidized, that is, it is used when it is dispensed, and it will lose its efficacy after a while, so there will be no solution to sell, so you have to take it back yourself, use it now, and make it with pants. Then you can use this solution to soak the affected area for about five minutes. Generally, a small bottle of a few dollars, black and purple tablets, can not be taken internally poisonous, can only be washed with water, a piece of water with a liter of Coke bottle is 1:
The ratio of 2500 is suitable for disinfection. There will be staining, or you can use half a piece to mix it with a liter of water, and there will be no staining. But when it comes to the pot, the amount of water is measured in a liter bottle, and then a piece of medicine is put in it to melt, and then the red water is soaked in your affected area, and if it is not good to soak, it can be poured repeatedly in a cup for ten minutes, and if it is soaked, it will be five minutes.
Yes, that's it, your understanding is correct, of course, you can also soak it like this for five minutes, one to five is the ratio, you don't need to use it all, and it has the same effect with one cup.
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There is a potassium permanganate crystal that is placed on filter paper soaked with a sodium sulfate solution, and an electric current is passed through it. The potassium permanganate crystal forms a purple patch in solution, and the purple patch moves towards the anode (in fact, the purple permanganate anion moves towards the anode). Also, why use sodium sulfate to pei lee solution?
Can I use another solution? Theoretically, any solution containing a higher concentration of mobile ions (e.g. potassium nitrate) can be used. However, it should be noted that electrolysis will be carried out in both poles, and the use of solutions that generate toxic gases during electrolysis should be avoided as much as possible, for example, when sodium chloride solution is used, chlorine will be released on the anode, although the amount of chlorine released is very small, but due to the toxicity of chlorine, the use should be avoided as much as possible.
And the base is positive, can it be replaced by other crystals? Potassium permanganate crystals are used because the dark purple permanganate anion is attracted to the anode by the anode when dissolved in water. Therefore, any water-soluble crystal that contains anions (which move towards the anode) or cations (which move towards the cathode) that contain color can be used.
For example, with sodium dichromate crystals, when dissolved in water, the dichromate anion ions form orange plaques that move towards the anode.
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Theoretically, potassium permanganate solution can be prepared with grams of potassium permanganate crystals and grams of water. However, in practice, grams of potassium permanganate can be dissolved in 1 liter of water, which can be diluted with a higher concentration of potassium permanganate solution.
Potassium permanganate is a very dark purple-red (it looks close to purple-black) color, and the color of the solution will still be darker, and the higher the concentration, the darker the color. Whether this concentration is high or low depends on what you are used for. Such as:
It has strong oxidation and strong sterilization ability. It can be used to disinfect baths and spittoons.
It has the purpose of relieving itching, anti-inflammatory and preventing the spread of infection, and can be used to soak and wash tinea pedis. It can be used to soak fruits and vegetables, such as bayberry and cherry, and only need to soak it in a solution of this concentration for five minutes, and then rinse it with cool boiled water to achieve the purpose of sterilization. In medical treatment, this concentration solution can be used to soak mucosal parts, such as hemorrhoids.
It has the effect of preventing infection, relieving itching and relieving pain.
Note: Potassium permanganate solution should not be abused, improper use will bring adverse consequences.
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1000 grams of water plus grams of potassium permanganate crystals, stirring to be completely dissolved, it is potassium permanganate solution.
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Generally speaking, the darker the color of the substance, the darker the color of the solution. For example, litmus solution, potassium dichromate solution.
It is difficult to conclude the level of concentration, and the concentration is relative.
This concentration is mainly used to wash melons and fruits, and only a few minutes of processing melons and fruits can achieve the purpose of sterilization. Because it has strong oxidation, it can also be decomposed without residual pesticides.
In hospitals, it generally uses about the concentration, which has strong oxidation and strong sterilization ability. It can be used for the disinfection of some medical devices and sanitary products. The concentration is mainly used for various infections with unbroken epidermis, such as ringworm, and disinfection.
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1. Potassium permanganate solution cannot be stored for a long time, because potassium permanganate can spontaneously but slowly oxidize water to generate O2, and the longer it is stored, the faster the reaction.
2. Because potassium permanganate is decomposed by light, it should be placed in a brown reagent bottle and stored away from light.
3. High temperature will speed up the reaction rate, so try to store at low temperature.
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Potassium permanganate is the most common oxidation and is very easy to be reduced, as long as it is shaken vigorously, light, dust and other reasons will decompose, so that the concentration changes significantly, often is ready and used, and calibrated with a reducing agent.
Potassium permanganate solution in brown fine-mouth bottles is commonly used in laboratories.
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Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The storage temperature does not exceed 32, and the relative humidity does not exceed 80.
The package is sealed. It should be stored separately from reducing agent and active metal powder, and should not be mixed. The storage area should be equipped with suitable materials to contain the spill.
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Potassium permanganate dissolves and the solution turns purplish-red.
Potassium permanganate, an inorganic compound, dark purple elongated orthorhombic columnar crystals with a metallic luster.
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 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.
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At high concentrations, it is purplish-black, and the dilution gradually turns purplish-red
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Potassium permanganate solution can enhance oxidation after acidification.
In addition, the reduction product of potassium permanganate in acidic solution is almost colorless Mn2+, so fading can be observed. However, the reduction product of potassium permanganate in neutral solution is brown mno2, and the discoloration of the solution cannot be observed.
Therefore, acidified potassium permanganate is commonly used in the examination of reducing substances.
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Sulfuric acid is usually used to acidify potassium permanganate solution.
Because the -1 valent Cl in hydrochloric acid is oxidized by potassium permanganate.
Potassium permanganate reacted and did not achieve the purpose of acidification.
The substances that can discolor the potassium permanganate solution and the related chemical reaction principles are as follows: >>>More
Oxygen can be produced by heating.
2kmNO4 = (heating) K2mNO4 + MNO2 + O2 (gas) From the knowledge learned, potassium permanganate cannot be used to produce hydrogen through any chemical reaction such as chemical reaction reaction, decomposition reaction, displacement reaction, metathesis reaction, etc., but it can produce oxygen through decomposition reaction. ” >>>More
Made with potassium manganatePotassium permanganatePotassium permanganate is a strong oxidizing agent, and it is associated withReducing agentThe reaction will vary depending on the acidity of the solution. In an acidic solution, potassium permanganate reacts with potassium sulfite, and the product is manganese sulfate: >>>More
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Potassium permanganate, also known as gray manganese oxygen, powder, is a purple-black crystal, with a metallic texture, dissolved in water, is an oxidant, because it can release new green ecological oxygen and has antibacterial effect, can be used to prevent and control a variety of crop diseases. >>>More