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Can the trivalent iron ion and the iodine ion coexist conditions?
No. Because ferric ions oxidize iodine.
The reaction is 2Fe (3+)+2I (-)=2Fe (2+)+I2
The generated iodine element reacts with iodine ion to form linear I3(-)
Reaction: I2+I-=I3(-)
What is the chemical nature of nitrite ions?
N in NO2- is +3 valence, so it has both oxidability and reducibility. In acid medium: HNO2/NO=0.99V, it has strong oxidability, and the oxidability of nitrite is stronger than that of nitrate.
1. Unstable under acid condition, easy disproportionation 3HNO2=HNO3+2NO+H2O without oxidant and reductant
2. I-ion can be oxidized to iodine in aqueous solution.
2HNO2+2I-+2H+=I2+2NO+2H2O
Sulfite can be oxidized to sulfuric acid.
2HNO2+H2SO3=H2SO4+2NO+H2O.
3. Reductive, oxidizable by strong oxidizer:
5 NaNO2+2 NaMnO4+3 H2SO4= Na2SO4+5 NaNO3+2 MnSO4+3 H2O
RELATED INFORMATIONS
- 1. Identification of nitrate and nitrite ion RT Is the resulting brown ring the same? Identification of nitrate and nitrite ion RT The resulting brown ring is the same?
- 2. Does the iodide ion react with the iodate ion in an alkaline environment? Why?
- 3. Why Iodine Hypochlorite Reacts under Basic Conditions
- 4. How does iodate produce iodine ion? Because the detection method is to detect iodine ion, and the iodine content of the sample to be detected is iodate, so it is necessary to react iodate to generate iodine ion for detection. Since some unknown components in our sample interfere with the determination of potassium iodate, we intend to use the method of determination of iodide ion. Therefore, it is necessary to change the iodate radical into iodide ion.
- 5. How do ferrous ions, hydrogen ions and nitrate ions react
- 6. Can ferrous ions react with nitrate ions
- 7. Reaction of Phenol with Potassium Permanganate Will phenol be oxidized to pink?
- 8. On the Oxidation of Double Bond by Acidic Potassium Permanganate How cycloene is oxidized by it (e.g. cyclohexene) What substance oxidizes to cycloketone (e.g. cyclohexanone)
- 9. Some Problems on Ionization Hydrolysis At 25°C, after mixing the equal volume of NaOH solution of ph=11 and HAc solution of ph=3, the concentration comparison is correct:[ HAc-]>[ Na+]>[ H+]>[ OH-].[ HAc-]>[ Na+] Why? Also, the acetate ion in the generated sodium acetate hydrolyzed a little, if not the ionization of acetic acid, the solution of acetate ion will be less than sodium ion?
- 10. How to Compare Degree of Ionization and Degree of Hydrolysis
- 11. Can chloride ions coexist with nitrate ions? And sulfate ions?
- 12. What is the reaction of hydrogen nitrate ion and iodine ion together and what is the reaction equation? Such as, Also, if it's nitrite, how does it react?
- 13. Basic organic chemistry says that alkalinity is the ability to give electrons. So why is the alkalinity of iodine less than that of fluorine? Iodine is less oxidizing than fluorine Basic organic chemistry says that alkalinity is the ability to give electrons. So why is the alkalinity of iodine less than that of fluorine? The oxidation of iodine is weaker than that of fluorine
- 14. Equation for Cyclohexene and Acidic Potassium Permanganate
- 15. Why carbon-carbon triple bond can be oxidized by potassium permanganate Besides acetylene, why are the three bonds of other alkynes oxidized by potassium permanganate Thank you, God.
- 16. Mechanism of Carbon-Carbon Double Bond Oxidation by Potassium Permanganate? Rt, what product? Why can it be oxidized?
- 17. PHENOL REACTION WITH SODIUM CARBONATE Specific points
- 18. How does sodium carbonate react with phenol
- 19. Can phenol fade acid potassium permanganate?
- 20. What is the density of the saturated sodium carbonate solution when CO2 is introduced to form sodium bicarbonate? What is the density of the solution when CO2 is introduced into the saturated sodium carbonate solution to form sodium bicarbonate?