Joko sulistyo
Well-known member
- Joined
- Nov 2, 2015
- Messages
- 48
Hi,all.
Three days ago,I was trying to recover silver from medical x-ray films.After soaking the films in NaOh solution for two days,the films peel off easily.
And then I collect all the black parts of the films to the bucket.
After complete,I put all the black materials into the beaker.
.
Adding dilute hno3 and give heat until all the black materials turn with.this process need 10 minutes.
.
And then I do filtering to separate silver nitrate and white materials.
.
Adding hcl to form silver chloride.
.
.
After complete,I do filtering the silver chloride,washing several times,and convert ing silver chloride to silver metal using NaOh and sugar(syrup).
At last,drying and melting.I only get about 1,5 grams from 1 kg medical x-ray films.
.
So,how your advice about my experiment?is there something wrong in the steps?
And how about the yield?
Thanks for your attentions.
Best regards.
Sent from my ASUS_Z008D using Tapatalk
Three days ago,I was trying to recover silver from medical x-ray films.After soaking the films in NaOh solution for two days,the films peel off easily.
And then I collect all the black parts of the films to the bucket.
After complete,I put all the black materials into the beaker.
Adding dilute hno3 and give heat until all the black materials turn with.this process need 10 minutes.
And then I do filtering to separate silver nitrate and white materials.
Adding hcl to form silver chloride.
After complete,I do filtering the silver chloride,washing several times,and convert ing silver chloride to silver metal using NaOh and sugar(syrup).
At last,drying and melting.I only get about 1,5 grams from 1 kg medical x-ray films.
So,how your advice about my experiment?is there something wrong in the steps?
And how about the yield?
Thanks for your attentions.
Best regards.
Sent from my ASUS_Z008D using Tapatalk