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6 votes
2 answers
844 views

Is there a simple way to distinguish grades of purity for copper metal?

Is there a simple way to distinguish different grades of fine copper purity (on a trace metal basis) that can be carried out in a small lab? Specifically, I would like to be able to differentiate 4N, ...
Hans's user avatar
  • 1,097
9 votes
1 answer
2k views

Gold Plating on Glass?

I am considering labware options to handle NaOH solutions at ~150 °C. One appealing idea would be to coat my current glassware with gold. I've read different sources mentioning the possibility without ...
Hans's user avatar
  • 1,097
0 votes
1 answer
1k views

What kind of metal drums are used to store Hydrochloric Acid?

I would expect Hydrochloric Acid to be stored exclusively in glass or plastic containers, but I was surprised to find Honeywell offers it for sale in 30Kg metal drums (Link). I think Hydrochloric ...
Hans's user avatar
  • 1,097
10 votes
1 answer
7k views

How is aqua regia stored?

How is aqua regia stored as it dissolves all metals?
user57139's user avatar
  • 117
1 vote
0 answers
36 views

What is the most simple way to cut through a steel with very thin aluminum coating to obtain cross section without damaging the coating?

I needed to take cross section characterization of an aluminum coating. I tried to use a hand saw to cut through it, but it destroys the coating, and usually is separated with the substrate as I ...
Acid's user avatar
  • 537
3 votes
1 answer
160 views

Sodium by electrolysis through glass

In his 1926 thesis Robert Cady Burts describes the production of sodium by electrolysis of sodium nitrate through glass. I can't find much else on this method. Are there any modern descriptions of ...
user17180's user avatar