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Thulium (III) color
Hi all,
I recently obtain a small sample of Thulium metal. I broke off a small piece and added a ... |
28-6-2014 at 20:10
by: sbreheny |
Calcium Carbide impurities
Hi all,
I recently got some calcium carbide which is sold for "gun sight smokers" - little lamp b ... |
22-4-2014 at 20:56
by: sbreheny |
Bromine contamination in Hydrobromic Acid
Thanks. I think I will try distillation but I will try a small amount first and also I am going to w ... |
23-3-2014 at 17:10
by: sbreheny |
Hydrogen and Helium Tanks
I don't think it's purely a safety thing because I've seen single large tanks of LNG and propane bei ... |
23-3-2014 at 17:09
by: sbreheny |
Bromine contamination in Hydrobromic Acid
Does anyone know if I could separate the Br2 from the HBr+H2O by mixing with some kind of solvent wh ... |
22-3-2014 at 14:55
by: sbreheny |
Hydrogen and Helium Tanks
Hi all,
When most compressed gasses are stored in bulk, one large tank is employed. However, when ... |
22-3-2014 at 14:54
by: sbreheny |
Bromine contamination in Hydrobromic Acid
Well, adding sulfur to a sample of the contaminated HBr did not seem do to anything, either at room ... |
20-3-2014 at 18:52
by: sbreheny |
Bromine contamination in Hydrobromic Acid
[rquote=323364&tid=29579&author=thesmug]Yes, HBr does decompose (much like H2O2). From my un ... |
20-3-2014 at 09:16
by: sbreheny |
Bromine contamination in Hydrobromic Acid
[rquote=323400&tid=29579&author=Cheddite Cheese]You wouldn't need to add water, as there is ... |
20-3-2014 at 09:14
by: sbreheny |
Bromine contamination in Hydrobromic Acid
Hi all,
I recently obtained a sealed bottle of hydrobromic acid (48%). I was surprised to find, u ... |
19-3-2014 at 19:47
by: sbreheny |
Scientech SA410 Analytical Balance
[rquote=321461&tid=29247&author=Dr.Bob]That kind of variation sounds like most of the older ... |
5-3-2014 at 09:43
by: sbreheny |
Scientech SA410 Analytical Balance
[rquote=321451&tid=29247&author=ZIGZIGLAR][rquote=321445&tid=29247&author=sbreheny]W ... |
4-3-2014 at 13:33
by: sbreheny |
Scientech SA410 Analytical Balance
Wow, Scientech is an AMAZING company - I asked for the service manual for this older model balance w ... |
4-3-2014 at 12:03
by: sbreheny |
Carbon Tetrachloride and Iron -> Ferric Chloride?
[rquote=321179&tid=29098&author=blogfast25]
The bottle was quite old, IIRW. Certainly aci ... |
2-3-2014 at 17:30
by: sbreheny |
Dripping wash bottles
Hi all,
I find that plastic wash bottles constantly drip whenever they contain volatile liquids l ... |
2-3-2014 at 08:18
by: sbreheny |
Carbon Tetrachloride and Iron -> Ferric Chloride?
Hi all,
Well, I finally got a chance to do the test for chloride using silver nitrate. It does lo ... |
2-3-2014 at 08:03
by: sbreheny |
Scientech SA410 Analytical Balance
Hi all,
Is anyone here familiar with the Scientech SA410 analytical balance? I have one which I g ... |
1-3-2014 at 17:09
by: sbreheny |
Underground Gadgets & Chemical Supply
I just came across this old thread because I was searching for info about this company. I recently p ... |
23-2-2014 at 23:20
by: sbreheny |
Carbon Tetrachloride and Iron -> Ferric Chloride?
I have saved most of the brown debris and some of the liquid and when I get a chance I will try test ... |
22-2-2014 at 23:57
by: sbreheny |
Carbon Tetrachloride and Iron -> Ferric Chloride?
Hi all,
I recently was able to obtain a bottle of carbon tetrachloride. It was still sealed despi ... |
21-2-2014 at 22:35
by: sbreheny |
Distilled water density
[rquote=320032&tid=28928&author=bfesser]Is this more like what you were going for?
<ta ... |
21-2-2014 at 07:42
by: sbreheny |
Distilled water density
Hi everyone,
I received my ultra-pure $25 per liter (!) water and repeated the experiment a few t ... |
21-2-2014 at 00:22
by: sbreheny |
Vacuum Distillation Confusion
[rquote=319411&tid=28461&author=organicchemist25]I see this thread is current, so I am hopin ... |
16-2-2014 at 23:10
by: sbreheny |
Distilled water density
[rquote=319403&tid=28928&author=feacetech]Why not use a hydrometer
[Edited on 16-2-2014 b ... |
16-2-2014 at 16:10
by: sbreheny |
Distilled water density
OK, I think I may have the answer. I just re-did the test twice with a 25mL volumetric flask but thi ... |
16-2-2014 at 13:47
by: sbreheny |
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