What impurities do iron produce when it reacts with concentrated sulfuric acid?
1. Reaction of iron with concentrated sulfuric acid: - At room temperature, iron would be deactivated in concentrated sulfuric acid. It would not react and no impurities would be produced. - If the reaction was carried out under heating conditions, iron would react with a sufficient amount of concentrated sulfuric acid to form iron nitrates, nitrogen dioxide, and water. The reaction equation was [Fe6HNO3 (concentrated)= Fe3NO3) 3 + 3NO2 + 3H2O]. The main products here were iron nitrates, nitrogen dioxide, and water. From the perspective of impurities, if the reaction was not complete, there might be un-reacted iron or concentrated sulfuric acid residue as impurities. 2. Reaction of iron and dilute sulfuric acid: - When there was enough iron, the reaction equation was [3Fe8HNO3 = 3FeNO3] 2 + 2NO2 + 4H2O]. If the reaction was not complete, there might be un-reacted iron or residual dilute sulfuric acid as impurities. Moreover, because the sulfuric acid had strong oxidisation, some iron might be oxided into [Fe3 +] and mixed into the [Fe2 +] product as impurities. - When the amount of dilute sulfuric acid is sufficient, the reaction equation is [(Fe4HNO3 = Fe3NO3) 3 + NO2O2O]. If the reaction is not complete, there may be un-reacted iron or dilute sulfuric acid residue as impurities. Read more exciting novels for free
Reaction equation of concentrated and diluted sulfuric acid with iron
1. 铁与浓硝酸反应： - 常温下铁在浓硝酸中会钝化，不反应。 - 加热时，若铁少量：\(Fe + 6HNO_{3}(浓)=\triangle=Fe(NO_{3})_{3}+3NO_{2}\uparrow+3H_{2}O\); - 若铁过量：\(Fe + 4HNO_{3}(浓)=\triangle=Fe(NO_{3})_{2}+2NO_{2}\uparrow+2H_{2}O\)。 2. 铁与稀硝酸反应： - 若铁少量：\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO\uparrow+2H_{2}O\); - 若铁过量：\(3Fe + 8HNO_{3}(稀)=3Fe(NO_{3})_{2}+2NO\uparrow+4H_{2}O\)。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
identification method for reaction of concentrated sulfuric acid and sulfuric acid
Acetic anhydryride-concentrated sulfuric acid reaction (Liebermann-Burchard reaction) can be used to identify tripenoid and steroid side. The specific identification method was as follows: dissolve the sample in vinegar and add concentrated sulfuric acid-vinegar (1:20). If the final color was red or purple, it was triterpene soap. If the final color was blue-green, it was steroid soap. During the reaction process, color changes such as red → purple → blue → green → dirty green would occur in turn, and finally the color would fade. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction equation of concentrated sulfuric acid and sulfuric acid ester
Under normal conditions, ester and concentrated sulfuric acid would not react, so there was no reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What happens when iron and concentrated sulfuric acid are heated?
The chemical equation for the reaction between iron and concentrated sulfuric acid is: Iron +6HNO (concentrated)= heat = Iron (NO)+3NO ^+3H O. In this reaction, the iron was oxided to +3 and the nitrogen acid was reduced to NO <2>. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction equation and phenomenon of excess iron and concentrated sulfuric acid
Iron reacted with concentrated sulfuric acid. If there was an excess of concentrated sulfuric acid, the reaction equation was: Fe6 HNO2 (concentrated)= heating = Fe3 (NO2)+3NO2 ^+3H2 O. If there is an excess of iron, the reaction equation is: Fe4 HNO2 (concentrated)= heating = Fe2 (NO2) 2 + 2NO2 2 + 2H2 O. [Phenomenon: The reaction produces reddish-brown gas (NO <2>), and the iron is gradually dissolved.] At the same time, the color of the solution may vary according to the relative amount of iron and sulfuric acid and the degree of reaction. If the solution is formed, it may be brownish-yellow, and if the solution is formed, it may be light green. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the differences between the reactions of iron and concentrated sulfuric acid?
The chemical equation of the reaction between iron and diluted sulfuric acid was: FeCl2 + H2. The reaction produced iron dioxide and hydrogen gas. Bubbles were produced, and the solution changed from colorless to light green. The reaction equation between iron and concentrated sulfuric acid was the same as the reaction with diluted sulfuric acid, but concentrated sulfuric acid was too volatile. When it reacted with iron, it would produce gas while evaporating hydrogen dioxide (HQ). This was one of the differences between the two reactions. In addition, due to the weak oxidization of diluted sulfuric acid, it could only turn iron into a positive two valency. However, the strong oxidization of Cl2 (concentrated sulfuric acid will evaporate Cl2), so concentrated sulfuric acid may involve more complicated situations such as turning iron into a positive three valency during the reaction process. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Ionic equation reaction of iron and concentrated sulfuric acid for heating
The ion equation of the reaction between iron and concentrated sulfuric acid under heating conditions is: Iron +6H +3NO = Fe3 + 3NO ^+3H ^O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Can the reaction of iron and sulfuric acid produce hydrogen?
The reaction between iron and sulfuric acid could not produce hydrogen, and the reaction type was not a substitution reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to match the reaction formula of concentrated sulfuric acid and concentrated sulfuric acid with the reaction formula of aromatic acid?
Under the catalyst of concentrated sulfuric acid, 1 mole of aromatic acid and 1 mole of concentrated sulfuric acid reacted to form 1 mole of nitrogen and 1 mole of water. The reaction formula was: C6H6 (aromatic ring)+ HNO3 + H2SO4 (catalyst) → C6H5-NO2 + H2O. If it was to form m-dinitro, the reaction formula was: C6H6 + 2HNO3--> C6H4 (NO2) 2 (dinitro is in the meta-position)+2H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Phenomenal equation of heating reaction between iron and concentrated sulfuric acid
The chemical equation for the reaction between iron and concentrated sulfuric acid is: Fe6HNO2 (concentrated)= heating = FeNO2 + 3NO2 + 3H2O. The reaction phenomenon was that reddish-brown gas (NO <2>) was produced and the iron gradually dissolved. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>