Does iron iodide react with ammonium hydrosulfide

Hello! Ferric iodide is a chemical substance with the molecular formula fei3, but this substance has not yet been prepared.

Because iron iodide does not exist, iron powder reacts with iodine to produce only ferrous iodide.

When in doubt, please ask.

First, Fe oxidizes I

2fe³⁺+2i⁻=2fe²⁺+i₂

After the addition of NHF, the reaction proceeds in reverse due to the generation of a very stable [FeF].

I +2Fe +12F =2I +2[FeF] The color reaction of ferric chloride and enols is chromogenic reaction, and the compound with the structure of hydroxyl group and sp2 hybrid carbon atom ( —c=c—oh) structure can show special color with the aqueous solution of iron chloride: phenol and hydroglucinol are purple; catechol and hydroquinone are green; Toluin is blue. There are also some phenols that do not develop color.

Don't be misled.

First, Fe3 + oxidized I-

2fe3++2i-=2fe2++i2

After the addition of NH4F, the reaction is reversed due to the generation of [FeF6]3-, which is very stable.

i2+2fe2++12f-=2i-+2[fef6]3-

Iron chloride [iron ions] have strong oxidation, potassium iodide [iodine ions] have strong reducibility, and redox reactions can occur. The chemical equation is.

2fecl3+2ki=2fecl2+2kcl+i2

The iodine ions in hydroiodic acid are reducing, and concentrated sulfuric acid is a strong oxidizing acid, and redox reactions will occur. Iodine ions are oxidized to iodine element, and sulfur in sulfuric acid is reduced to sulfur dioxide.

Reaction equation: 2Hi + H2SO4 = I2 + SO2 + 2H2O hope.

Dissolve, generate divalent iron ions and iodine element, and the color of the solution turns brown.

1.Excess hydrogen iodide 2Fe (OH) 3 + 8Hi = 2Hi3 (brown) + 2Fe2 + 6H2O

The solution is brown.

2.Excess iron hydroxide.

2Fe(OH)3+6Hi=2FE2+6H2O+I2 brown turns light yellow.

Chemical reaction equation] Fes+2Hi=FEI2+H2S

First of all, all the ions here do not have oxidation, and it is impossible for the redox reaction to occur; Sulfur and oxygen are elements of the same group in the periodic table, all have certain same properties, that is, sulfides can also react with acids to form corresponding salts, and the reaction is a metathesis reaction, exchanging ions with each other, so the equation is shown above anyway.

Oxidation expansion] If the iodine element is put into ferrous sulfide, the redox reaction will not occur, because the oxidation relationship is: three iron ions iodine elemental sulfur.