Dianfeng Chemical
SUPPLEMENTS
Hydrogen Sulfide Silver Nitrate Reaction
The reaction of hydrogen sulfide into the silver nitrate solution
If the hydrogen sulfide ($H_2S $) smells like rotten eggs, it is weakly acidic. Silver nitrate ($AgNO_3 $) is soluble in water, and the silver ion ($Ag ^ + $) and nitrate ion ($NO_3 ^ - $) in the solution are free.
When the gas of hydrogen sulfide is slowly introduced into the silver nitrate solution, the two chemically react. Sulfur ions ($S ^ {2 - }$）， in hydrogen sulfide are silver-friendly and meet with silver ions ($Ag ^ + $) in the solution, that is, they combine to form a black precipitate of silver sulfide ($Ag_2S $). The chemical equation of the reaction is as follows:
$H_2S + 2AgNO_3\ longrightarrow Ag_2S\ downarrow + 2HNO_3 $
Looking at this reaction, it is a typical metathesis reaction. Sulfur ions combine with silver ions to form silver sulfide precipitation, and hydrogen ions and nitrate ions form nitric acid. The precipitation of silver sulfide is black and stable, insoluble in water and dilute acids, so it precipitates in solution and is clearly visible.
This reaction is important in chemical analysis and material preparation. From this, we can see the wonder of the chemical interaction between hydrogen sulfide and silver nitrate, and also see the delicate laws of chemical changes.
If the hydrogen sulfide ($H_2S $) smells like rotten eggs, it is weakly acidic. Silver nitrate ($AgNO_3 $) is soluble in water, and the silver ion ($Ag ^ + $) and nitrate ion ($NO_3 ^ - $) in the solution are free.
When the gas of hydrogen sulfide is slowly introduced into the silver nitrate solution, the two chemically react. Sulfur ions ($S ^ {2 - }$）， in hydrogen sulfide are silver-friendly and meet with silver ions ($Ag ^ + $) in the solution, that is, they combine to form a black precipitate of silver sulfide ($Ag_2S $). The chemical equation of the reaction is as follows:
$H_2S + 2AgNO_3\ longrightarrow Ag_2S\ downarrow + 2HNO_3 $
Looking at this reaction, it is a typical metathesis reaction. Sulfur ions combine with silver ions to form silver sulfide precipitation, and hydrogen ions and nitrate ions form nitric acid. The precipitation of silver sulfide is black and stable, insoluble in water and dilute acids, so it precipitates in solution and is clearly visible.
This reaction is important in chemical analysis and material preparation. From this, we can see the wonder of the chemical interaction between hydrogen sulfide and silver nitrate, and also see the delicate laws of chemical changes.
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