Formaldehyde reacts with silver ammonia solution to produce what

If it is a small amount of formaldehyde and a sufficient amount of ammonia.

Then formaldehyde is equivalent to having two aldehyde groups.

It can react with 4 times the silver ammonia solution to produce ammonium carbonate and 6 times the ammonia.

4 times the silver element, 2 times the water.

If there is an aldehyde group in the molecule, then react with 2 times the ag(NH3)2OH to produce the product which can be memorized, 4 is the corner mark in the -CoonH4 in the product is the metrological coefficient of the product molecule, 3NH3, 2AG, 1H2O

Equation. It is: r—cho+2ag(nh3)2oh ==== r—coonh4+3nh3+2ag +1h2o

Formaldehyde reaction: HCO+4AG(NH3)2OH ==== CO(ONH4)2+6NH3+4AG+2H2O

or written as (NH4)2CO3 ammonium carbonate.

Let's talk about formic acid and formaldehyde together. The silver ammonia solution reacts with the aldehyde group. Formaldehyde is equivalent to two aldehyde groups, and CO and hydrogen on the left and right are each equivalent to one aldehyde group.

There is only one aldehyde group in formic acid, COOH and one hydrogen on the left are equivalent to one aldehyde group. hcho + 4 ag(nh3)2oh —-nh4)2co3 + 4 ag↓ +6 nh3↑ +2 h2o hcooh+2ag(nh3)2oh→co2↑+4nh3↑+2ag↓+2h2o

It also undergoes a silver mirror reaction to produce ammonium formate, silver, ammonia, and water.

Water, carbon dioxide, elemental silver.

The reaction equation of formaldehyde and silver ammonia solution is HCO+4AG(NH3)2OH- NH4)2CO3+4AG+6NH3+2H2O. The reaction of formaldehyde and silver ammonia solution is called the silver mirror reaction, in which the silver compound is reduced to metallic silver, and a layer of bright metallic silver can be observed on the inner wall of the experimental vessel.

HCO+4AG(NH3)2OH- NH4)2CO3+4AG +6NH3+2H2O, in the actual experiment of the reaction of formaldehyde and silver ammonia solution, there may be the production of gaseous carbon dioxide, because the obtained carbon dioxide has no time to react with ammonia.

When the silver ammonia solution is insufficient, ammonium formate may also be obtained, and the chemical reaction equation is: 4Ag(NH3)2OH+HCh---CO2+4AG+8NH3+3H2O. Moreover, formaldehyde reacts with a silver ammonia solution to form (NH4)2CO3 instead of HCOONH4 (ammonium formate), because formic acid (HCOOH) also contains aldehyde groups that can be oxidized to form carbonic acid (H2CO3).

The reaction equation between aldehyde group and silver ammonia solution is: CH3CH+2AG(NH3)2OH CH3CoonH4+H2O+2AG +3NH3. Silver ammonia solution generally refers to silver hydroxide diamonia synthesis, the essence of the chemical reaction of silver diamonia hydroxide is actually the reaction of silver hydroxide, which is actually agoh·2nh3, and the following components exist in the silver hydroxide diamonia solution:

Ag(NH3)2]+ ions, NH3 molecules, NH3·H2O molecules, NH4+ ions, OH- ions, and very small amounts of Ag+ ions.

ch3cho+2ag(nh3)2oh△--2ag↓+ch3coonh4+3nh3+h2o。The acetaldehyde and silver ammonia solution will undergo a silver mirror reaction, and the ion equation is: CH3CHO+2AG(NH3)2+2OH---CH3COO-+NH4++2AG +3NH3+H2O.

Most of the most advanced in the market are 40% acetaldehyde aqueous solution, in order to obtain acetaldehyde with high purity, 1%-5% of 98% concentrated sulfuric acid can be added to the triacetaldehyde and distilled. Ice water should be used for condensation, and the bottle should be placed in ice water and handled carefully. The resulting acetaldehyde is sealed and placed in the refrigerator.

ch3cho+2ag(nh3)2oh=2ag↓＋ch3coonh4+3nh3+h2o。

The acetaldehyde and silver ammonia solution undergoes a silver mirror reaction, and its ion equation is:

ch3cho+2ag(nh3)2+ 2oh=ch3coo- +nh4+ +2ag↓＋3nh3+h2o。

The reaction equation of formaldehyde and silver ammonia solution is HCO+4AG(NH3)2OH- NH4)2CO3+4AG+6NH3+2H2O.

Expansion: 1Experimental phenomenon: The reaction of formaldehyde and silver ammonia solution is called silver mirror reaction, in this reaction, the silver compound is reduced to metallic silver, and a layer of bright metal tung cover silver can be observed attached to the inner wall of the experimental container.

2.In the actual experiment of the reaction of formaldehyde and silver ammonia solution, there may be the production of gas carbon dioxide, because the obtained carbon dioxide does not have time to react with ammonia. When the silver ammonia solution is insufficient, it may also be difficult to get ammonium formate, and the chemical reaction equation is:

4ag(nh3)2oh+hcho---co2+4ag+8nh3+3h2o。