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Bad days in the lab or with glassware?
[rquote=194069&tid=13214&author=Magpie]Here's where I bought mine, a pkg of 5, part no. 8902 ... |
2-1-2011 at 09:08
by: bob800 |
Crack in Filter Flask?
[rquote=197069&tid=15193&author=garage chemist]That's an imperfection from the molding proce ... |
1-1-2011 at 17:28
by: bob800 |
Crack in Filter Flask?
I just bought a 250ml Kimax filter flask, and after the first time using it, I noticed a strange mar ... |
1-1-2011 at 16:31
by: bob800 |
Reagen labelling
If you had done a quick search, you could've easily found this thread:
[url]https://www.sciencema ... |
1-1-2011 at 16:09
by: bob800 |
Lead dioxide anode
[url]https://www.sciencemadness.org/whisper/viewthread.php?tid=2465[/url] |
22-11-2010 at 20:06
by: bob800 |
when is HCN gas evolved from ferrocyanide?
I was following instructions for synthesizing Prussian Blue ink from [url=http://books.google.com/bo ... |
9-11-2010 at 16:39
by: bob800 |
buying used glassware
[rquote=192200&tid=14833&author=S.C. Wack]if "Pyrex glass" means used glassware that was blo ... |
8-11-2010 at 17:09
by: bob800 |
buying used glassware
I was looking on ebay for a distillation kit, and found [url=http://cgi.ebay.com/19-22-Chemistry-Kit ... |
8-11-2010 at 13:22
by: bob800 |
Getting a clean alcohol flame
[rquote=190739&tid=14686&author=madscientist]Have you tried burning it alone in a shallow di ... |
19-10-2010 at 16:53
by: bob800 |
Getting a clean alcohol flame
[rquote=190735&tid=14686&author=FrankMartin]We used to mix a little water with the alcohol t ... |
19-10-2010 at 16:34
by: bob800 |
Getting a clean alcohol flame
[rquote=190534&tid=14686&author=psychokinetic]If using a wick, there will always be a bit of ... |
17-10-2010 at 16:13
by: bob800 |
Getting a clean alcohol flame
For a while now I've been trying to get my alcohol burner flame that clear blue color, but there's a ... |
17-10-2010 at 15:13
by: bob800 |
Controlling fumehood fan speed
[rquote=190438&tid=14677&author=entropy51]With a reasonable face area your face velocity is ... |
16-10-2010 at 18:50
by: bob800 |
Controlling fumehood fan speed
Thanks for all the help.
Perhaps I could turn the blower on direct AC, and then immediately switc ... |
16-10-2010 at 17:15
by: bob800 |
Controlling fumehood fan speed
OK, I found an AC speed controller on Grainger: [url]http://www.grainger.com/Grainger/DART-CONTROLS- ... |
16-10-2010 at 17:02
by: bob800 |
Controlling fumehood fan speed
The specs on my blower can be found [url=http://www.grainger.com/Grainger/DAYTON-PSC-Blower-1TDT2]he ... |
16-10-2010 at 16:49
by: bob800 |
Controlling fumehood fan speed
I recently built a small fumehood, and although it works just fine, there are many times when I don' ... |
16-10-2010 at 16:07
by: bob800 |
glassware suppliers that sell to hobbyists?
[rquote=188889&tid=14582&author=crazyboy]For flasks, condensers, beakers etc. Cynamr and eBa ... |
2-10-2010 at 06:20
by: bob800 |
glassware suppliers that sell to hobbyists?
I'm trying to find a reputable Corning\Chemglass\Kimax glassware supplier that will sell to hobbyist ... |
1-10-2010 at 18:28
by: bob800 |
Do stains on hotplates affect performance?
I found a reasonably-priced Corning PC-320 on ebay, but there's some stains on the plate. Do stains ... |
28-9-2010 at 12:26
by: bob800 |
overheating hotplate with Al foil?
"It would be well to note that if distillations are conducted under vacuum, more often than not a ho ... |
25-9-2010 at 17:18
by: bob800 |
overheating hotplate with Al foil?
@magpie
If a few drops of water fell into the bath, would it spatter the hot oil everywhere? |
25-9-2010 at 16:01
by: bob800 |
overheating hotplate with Al foil?
@aonomus:
Thanks for the link.
I finally found some good hotplates on ebay, but now it seems i ... |
25-9-2010 at 15:30
by: bob800 |
overheating hotplate with Al foil?
[rquote=188311&tid=14538&author=crazyboy]I would suggest using a water or sand bath or a hea ... |
25-9-2010 at 13:24
by: bob800 |
overheating hotplate with Al foil?
In [url=https://www.sciencemadness.org/whisper/viewthread.php?tid=13206]this thead[/url], there have ... |
25-9-2010 at 13:03
by: bob800 |
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