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Dissolving gold in KCN-solution
30 minutes ago, in the fume hood with extreme caution, I took a spatula full of potassium cyanide, a ... |
15-12-2008 at 08:59
by: Jor |
What to do with HgI2
Yes I would see a toxicolgist. It's auite easy to remove mercury form the system by chelation therap ... |
11-12-2008 at 14:53
by: Jor |
Safety Reminder: home chemistry and kids
I notice this myself as well.
When I started about 1,5 year ago, I was very scared of acids and t ... |
10-12-2008 at 13:40
by: Jor |
Safety Reminder: home chemistry and kids
This was a horrible story to read. I'm very sorry for you and I wish you and your son the best of lu ... |
10-12-2008 at 02:55
by: Jor |
The POTENCY of carcinogens.
Yes, it seems that benzene and CCl4 are indeed not so strongly carcinogenic. I read before that peop ... |
10-12-2008 at 01:24
by: Jor |
The POTENCY of carcinogens.
As I work with nickel compounds, chromium compounds, and also sometimes with CHCl3/CCl4, I was reall ... |
9-12-2008 at 15:53
by: Jor |
Hazardous Particulate Collection
You are not a nervous nelly. Dust particles are a serious health risk in the long run.
I do not run ... |
8-12-2008 at 06:10
by: Jor |
insurance
Also we have a fuel station here in the middle of the city. Above it there are apartments. And I thi ... |
7-12-2008 at 15:07
by: Jor |
really weird compound
Fleaker, do you also have access to PCl5? If yes, where do you live? I can buy most things, but PCl5 ... |
7-12-2008 at 15:02
by: Jor |
really weird compound
Very nice woelen!
I'm very impressed. That's a beautiful green color.
Do you think it is possible ... |
7-12-2008 at 13:59
by: Jor |
insurance
I have an extinguisher, a fire blanket, a fume hood, soon I will have a flammables safety cabinet, a ... |
7-12-2008 at 02:45
by: Jor |
insurance
This though has been stressing me out tonight. What IF, for any reason whatsoever, the house would b ... |
6-12-2008 at 13:36
by: Jor |
Silver Precipitation from Silver Nitrite
Very strange. To 23 grams of pure AgCl was added a solution of 6,2g NaOH in 100mL H2O. I heated. The ... |
5-12-2008 at 14:48
by: Jor |
really weird compound
Im really impressed you made a green/blue gas. I have never seen this before, and i'm really looking ... |
5-12-2008 at 14:41
by: Jor |
homebuilt fume hood
How large is your hood?
This one moves a lot of volume, similar to that of Magpied. And Magpie has ... |
5-12-2008 at 07:20
by: Jor |
homebuilt fume hood
Maybe it's the power of your motor. It might be too strong, or too weak.
My blower has 4 speeds. ... |
5-12-2008 at 06:22
by: Jor |
Silver Precipitation from Silver Nitrite
I currently have about 23 grams of pure silver chloride sitting on my bench, and I'm still not sure ... |
4-12-2008 at 15:02
by: Jor |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Klute, when will your lab be up running again? You already working on your hood?  |
3-12-2008 at 14:02
by: Jor |
silver
Yes I also think it is tungsten. After I decanted the dark blue solution, I saw a piece of metal in ... |
2-12-2008 at 08:07
by: Jor |
today have done an experiment with White P
I did the experiment again, now in my fume hood. I put a small piece of white P in the flask (I thin ... |
30-11-2008 at 13:54
by: Jor |
Precipitated copper powder
I have very fine lab-grade copper powder. It's BLACK as well!
It actually stains my fingers when I ... |
29-11-2008 at 17:50
by: Jor |
Preparation of PBr3?
The bubbles you observe not only HCl, also ethyl chloride.
I would not remove the ethanol from th ... |
27-11-2008 at 13:37
by: Jor |
silver
I just dissolved the metal. it was 25g instead of 100g, a mistake by the seller, but I got 75% of my ... |
26-11-2008 at 13:03
by: Jor |
SrCrO4. What to do with it?
I already knew Cr(III) is amfoteric, but I though that if you dilute well enough and add sodium hydr ... |
25-11-2008 at 14:17
by: Jor |
SrCrO4. What to do with it?
I would be very wary of performing thermites with chromates. There's always SOME unreacted chromate, ... |
25-11-2008 at 09:13
by: Jor |
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