April 25, 2024, 05:07:37 AM
Forum Rules: Read This Before Posting


Topic: Liebig method for silver coating of glass  (Read 4761 times)

0 Members and 1 Guest are viewing this topic.

Offline rpirrie

  • New Member
  • **
  • Posts: 8
  • Mole Snacks: +0/-1
Liebig method for silver coating of glass
« on: April 25, 2010, 03:44:49 PM »
Hello--I am coating florence flasks with silver using the Liebig method but they come out looking blackish, like the silver is already oxidized. I'd like a bright mirror effect...any suggestions? Thanks.

Offline Grundalizer

  • Full Member
  • ****
  • Posts: 257
  • Mole Snacks: +19/-31
Re: Liebig method for silver coating of glass
« Reply #1 on: April 27, 2010, 11:25:32 PM »
Could you list your exact procedure?

The inside of the flask or whatever you are coating will be blackish, but the side touching the glass should be bright silver.

You are adding silver hydroxide to ammonia and then adding glucose, correct?


Offline rpirrie

  • New Member
  • **
  • Posts: 8
  • Mole Snacks: +0/-1
Re: Liebig method for silver coating of glass
« Reply #2 on: May 07, 2010, 02:02:19 PM »
5 ml 1.5M Ammonium nitrate mixed with 5 ml of 0.5M silver nitrate, 10 ml of 10% dextrose, 10 ml of 10% sodium hydroxide. sorry for not re posting quickly

Sponsored Links