How to make sodium ferrite and what color is it

Electrolytic preparation.

The effect of ultrasonic action on the reaction rate of sodium iron was investigated by electrolysis of NaOH solution (12 0mol·L-1) using iron as the working electrode, and the effect of ultrasonic action on the reaction rate of sodium iron was determined under the conditions of system temperature of 20-50 and current density of 500-2000A·m -2 Experimental results showed that ultrasound could increase the formation rate of sodium ironate. The effect of ultrasound increased with the increase of operating current density, and the effect of ultrasound on sodium ferrite generation was greatest at 40 o'clock under experimental conditions

Hypochlorite oxidation preparation.

Using the hypochlorite oxidation method, adding g of sodium hydroxide and g of iron sulfate to a solution of sodium hypochlorite with a mass fraction of 8% in ml can prepare sodium ferrite with molar concentration (the amount concentration of the substance) of mol l. The results showed that iron sulfate as the water treatment agent could not effectively remove manganese ions in wastewater. After the wastewater was treated with 2 mg L sodium ferrate, the concentration of remaining manganese ions dropped to mg L, and the removal rate was 90%, which reached the national drinking water quality standard (GB 5749-85).

Industrial Method. Industrially, sodium iron rate is prepared first, and then potassium iron rate can be prepared by adding a certain amount of KOH to the sodium iron rate solution at low temperature. The main reaction principles of the two methods for the preparation of sodium ferrate are as follows:

Wet preparation - 2Fe(OH)3+3Cl-+4OH-=2FeO42-+3Cl-+5H2O;

Dry preparation - 2FeSO4 +6Na2O2=2Na2FeO4+2Na2O+2Na2SO4+O2

Violet-black, electrolysis of sodium hydroxide solution with an iron electrode. Of course, there are other controls on the conditions. The solution will be slightly yellow because the oxidized water produces iron ions.

First of all, I will correct you This substance is called sodium iron rate Because the valence state of Fe is +6 There are the following 4 preparation methods Electrolysis preparation Using iron as the working electrode, sodium iron is prepared by electrolysis of NaOH solution (12 0mol·L -1), under the conditions of system temperature of 20-50 and current density of 500-2000a·m -2, the effect of ultrasonic action on the reaction rate of sodium iron is ** The experimental results show that ultrasound can increase the formation rate of sodium iron rate; The effect of ultrasonic action is enhanced with the increase of operating current density, and under experimental conditions, the effect of ultrasonic action on the formation of sodium iron rate is the greatest at 40 ° Hypochlorite oxidation method Using the hypochlorite acid salt oxidation method, g sodium hydroxide and g iron sulfate were added to the sodium hypochlorite solution with a mass fraction of 8% in ml, and the molar concentration (the amount concentration of the substance) was mol l. The results showed that iron sulfate as the water treatment agent could not effectively remove the manganese ions in the wastewater. After the wastewater was treated with 2 mg L sodium ferrate, the concentration of remaining manganese ions dropped to mg L, and the removal rate was 90%, which reached the national drinking water quality standard (GB 5749-85). Industrial production method Sodium iron rate is prepared industrially, and then at low temperature, a certain amount of KOH is added to the sodium iron rate solution to prepare potassium iron rate.

The main reaction principles of the two methods for the preparation of sodium iron rate are as follows: Wet preparation - 2Fe(OH)3+3ClO-+4OH-=2FeO42-+3Cl-+5H2O; Dry preparation - 2FeSO4 +6Na2O2=2Na2FeO4+2Na2O+2Na2SO4+O2Other preparation methods: Fe2O3+3Na2O2=2Na2FeO4+Na2O

Industrial manufacturing method: Sodium iron rate is prepared by the industrial simple block, and then at low temperature, a certain amount of KOH is added to the sodium iron rate solution to prepare potassium iron rate.

The main reaction principles of the two methods for the preparation of sodium ferrate are as follows:

Wet preparation - 2Fe(OH)3+3Cl-+4OH-=2FeO42-+3Cl-+5H2O;

Dry preparation - 2FeSO4 +6Na2O2=2Na2FeO4+2Na2O+2Na2SO4+O2

Other preparation methods: <>

Introduction to sodium ferrite: Salts (sodium, potassium) are hexavalent iron salts with strong oxidizing properties.

Dissolved in water, it can release a large amount of atomic oxygen, which is very effective in killing germs and viruses in water. At the same time, it is reduced to Fe(OH)3, a high-quality inorganic flocculant that can efficiently remove fine suspended solids from water. Experiments have proved that due to its strong oxidation and flocculation co-blocking and co-arresting effects, the disinfection and decontamination effects of ferrite are better than those of chlorine-containing disinfectants.

and permanganate. More importantly, it does not produce any harmful substances to the human body in the whole process of disinfection and purification of water. Ferrate was used by scientists.

Recognized as a green disinfectant.

The main reaction principles of the two limb nucleus clearing methods for the preparation of sodium ferrate are as follows:

1. Preparation of wet hunger pants - 2Fe(OH)3+3CLO-+4OH-=2FEO42-+3Cl-+5H2O;

2. Dry preparation - answer digging 2FeSO4 +6Na2O2=2Na2FeO4+2Na2O+2Na2So4+O2

3. Other preparation methods Fe2O3 + 3Na2O2 = 2Na2FeO4 + Na2O Wang.

Ferric nitrate, sodium carbonate, and sodium hypochlorite are added by hypochlorite oxidation to produce sodium ferrite, sodium nitrate, carbonic acid, and sodium chloride.

Hello, the method for detecting chemical substances of potassium ferrate, the method comprises: (1) the drawing of the standard curve search and correction: prepare potassium ferrite solution and different concentrations of reducing agent solution respectively, the potassium ferrite solution and different concentrations of reducing agent solution respectively undergo redox reaction, and detect the intensity of the chemiluminescence signal produced by the two in the reaction process, and draw the standard curve of chemiluminescence intensity with the concentration of reducing agent; (2) Determination of the unknown concentration of the fibrillant reducing agent:

The reducing agent solution of unknown concentration or the acidic reducing agent solution prepared by adding acid is reacted with the potassium ferrite solution prepared in step (1), and the intensity of the chemical world luminescence signal produced by the two in the reaction process is determined

Purple, fuchsia, or dark purple.

Ferrites are good oxidizing agents that can oxidize metals and can oxidize some low-valence metal oxides, such as ferrous oxide.

Sodium ferrate (potassium) is easily soluble in water, the solution is purple, the ferrate ions in the solution are stable to alkali, and oxygen is naturally separated under acidic conditions.

Potassium ferrite is an excellent water purifier.

Hope it helps!

White, with strong oxidation, will corrode the metal, and the metal oxide does not react, will oxidize the low-valent oxide to **. However, in general, it is difficult for solids to react with each other.

The sodium ferrite solution is purple-red, has strong oxidizing properties, and has a corrosive effect on metals. Metal oxides can also react if they are reducible (e.g. ferrous oxide).

It's purple.

Of course, it can corrode the more reactive metals and metal oxides, and its oxidation is so high that it can even oxidize water.

In addition to gold, platinum and other metals can be oxidized.

If you still have any questions, please feel free to ask.

Using hypochlorite oxidation method, sodium hydroxide and iron sulfate with a mol concentration of mol can be prepared by adding sodium hydroxide and iron sulfate to sodium hypochlorite solution with a mass fraction of 8%.

naoh + fe(no3)3 + naclo ==na2feo4 + nacl + nano3