how to turn glass into a mirror
Post new topic Reply to topic
   Chemical Community Forum Index : Chemistry forum
View previous topic :: View next topic  
Author Message
lovicodo
Newbie
Newbie


Joined: 18 Oct 2018
Posts: 3
Reply with quoteFind all posts by lovicodo

how to turn glass into a mirror


Hello,
i have some questions about glass silvering;
i found this procedure:
1) make a solution (A) with 1.4 gr silver nitrate + 17gr water
then, add to the solution 1.2gr of ammonia 26% solution

2) make a solution (B) with 9.2 gr potassium bitartrate + 4gr sodium carbonate + 17gr water

3) make a solution (C) made of 5gr (A) + 5gr (B) + 100gr water

4) put a very clean glass sheet (*) in solution (C) , and leave it in the solution until the glass silvering is done.

(*) the glass must be very clean before silvering :
to clean it, wash it with a 6% tin chloride solution,
then rinse it with hot water.

The author claims that with this procedure is possible to silver also plastic with very smooth surfaces.

The questions are:

1) Do you think that this procedure can really work also for plastics?

2) How can i make the plastic surface clean (and smooth)?
do you think that the 6% tin chloride solution is suitable also for plastics, or does need another cleaner?

I am interested in plastics such as PLA,ABS,PETG; i have read somewhere that PETG is more suitable than the others...

P.S: this is my first post in this forum,
i am sorry if i have posted the question in a wrong forum section, in this case i ask to moderator to move it in the right place...

Thank you!
Lodovico
Back to top
View user's profileSend private message
ChenBeier
Sr. Staff Member
Sr. Staff Member


Joined: 27 Sep 2017
Posts: 222
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


The Experiment stays above the theory. Try it and you see it will work or not. Cleaning with alcohol before. Sometimes its necessary to roughn the surface. Alkaline permanganate solution for example.
Back to top
View user's profileSend private message
lovicodo
Newbie
Newbie


Joined: 18 Oct 2018
Posts: 3
Reply with quoteFind all posts by lovicodo


yes it is needed to sensitize the plastic
i read in other place that the tin chloride solution (after cleaning with alcool) has function of 'sensitizer'
somewhere i found that the object must be plunged in a concentrated (5%) tin solution for about 30sec, in others i found it must be kept immersed for 30minutes in a very less concentrated (0.003M) solution...
by the way...do you know how to make a stannous chloride solution?
thanks!
Back to top
View user's profileSend private message
ChenBeier
Sr. Staff Member
Sr. Staff Member


Joined: 27 Sep 2017
Posts: 222
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


You dissolve tin-II-chloride SnCl2 in water, add approx 5 ml/l hydrochloric acid 37%w.w, other wise you get precipitation of tinoxide.
Back to top
View user's profileSend private message
Williama
Newbie
Newbie


Joined: 08 Nov 2018
Posts: 1
Reply with quoteFind all posts by Williama


lovicodo wrote:
yes it is needed to sensitize the plastic
i read in other place that the tin chloride solution (after cleaning with alcool) has function of 'sensitizer'
somewhere i found the sizegenetics that the object must be plunged in a concentrated (5%) tin solution for about 30sec, in others i found it must be kept immersed for 30minutes in a very less concentrated (0.003M) solution...
by the way...do you know how to make a stannous chloride solution?
thanks!


Damn you're a smart guy.
Back to top
View user's profileSend private message
Display posts from previous:   
Post new topic Reply to topic
   Chemical Community Forum Index : Chemistry forum Page 1 of 1

 
Jump to:  

Chemical portal