Silver oxide, caustic soda and sugar

[Ellorath]

Hi guys,

Can anyone help me with the complete reactions of AgCl to solid Ag. I just couldn't find it anywhere.. :roll:

Thanks!!

 

[Lino1406]

2AgCl + 2NaOH + 2e- (from glucose sugar) = 2Ag + O-- + H2O + 2NaCl

 

[butcher]

silver chloride reduction with caustic soda and light corn syrup:

2AgCl +3NaOH + C₆H₁₂O₆ --> 2Ag + 2NaCl +C₆H₁₁O₇ + H₂O + Na

 

[Ellorath]

Hi again,

I have seen in the videos, that first caustic and then adding syrup to the mixture. I want to understand it in reaction steps. I would appreciate so much if you guys write the reactions in steps like what happens first adding caustic and then syrup.

Thanks

 

[anachronism]

Hi again,

I have seen in the videos, that first caustic and then adding syrup to the mixture. I want to understand it in reaction steps. I would appreciate so much if you guys write the reactions in steps like what happens first adding caustic and then syrup.

Thanks

The bit you missed off was "thanks guys for the answer to the question I asked." 8) 8)

 

[butcher]

I can understand the inorganic chemistry fairly well, but here we are dealing with organic chemistry, which is a different ball game, Someone with an understanding of organic chemistry can better explain just how the glucose is converted to gluconate during the reduction of silver salt to metal.
I do believe Lou has discussed this in his earlier posts on the subject.

 

[goldandsilver123]

2 AgCl + 2 NaOH -> 2NaCl + Ag2O + H2O


Ag2O + C6H12O6 + NaOH → 2 Ag + C6H11O7Na + H2O


Global
2 AgCl + C6H12O6 + 3 NaOH -> 2 Ag + C6H11O7Na + 2 H2O + 2 NaCl

Glucose to sodium gluconate

 

[Lino1406]

If it is interesting someone, some silver oxide is complexed in the soluble state, NaAg(OH)2

 

[Palladium]

If it is interesting someone, some silver oxide is complexed in the soluble state, NaAg(OH)2

I would like to hear more on this subject!

 

[butcher]

Silver is one of the Amphoteric metals, which can dissolve in excess basic solutions.
So I can see where some of the silver would be soluble if excess caustic is used to oxidize the silver.

https://en.wikipedia.org/wiki/Amphoterism
http://dwb5.unl.edu/chem/smallscale/SmallScale-078.html

 

[Palladium]

Sometimes, but not always i get a hint of silver chloride when washing silver with hcl after a silver chloride/NaOH/sugar conversion.

 

[Ellorath]

Hi again,

Sorry I am new here and will learn the code
Thank you all for sharing great information with me! May the gold be with you! Amen :G

Ellorath