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Making biuret reagent
[rquote=200478&tid=15418&author=ScienceSquirrel]
This one uses sodium potassium tartrate, s ... |
20-2-2011 at 06:21
by: cnidocyte |
Tin (II) Chloride
[rquote=201942&tid=14174&author=cyanureeves]@cnidocyte it has got to be your hcl acid becaus ... |
20-2-2011 at 06:11
by: cnidocyte |
Separation of sodium nitrite from sodium chloride
[rquote=145461&tid=11734&author=Panache]i have done this many times and it is relatively sim ... |
17-2-2011 at 15:12
by: cnidocyte |
Separation of sodium nitrite from sodium chloride
[rquote=157006&tid=11734&author=Lanthanide]
Now NaNO2 is much more readily soluble than NaC ... |
17-2-2011 at 05:12
by: cnidocyte |
Tin (II) Chloride
[rquote=201576&tid=14174&author=blogfast25]I've dissolved pure Sn in an excess of boiling 22 ... |
16-2-2011 at 15:30
by: cnidocyte |
Strong acids
I like this one http://en.wikipedia.org/wiki/Trifluoromethanesulfonic_acid
They call it trifilic ac ... |
14-2-2011 at 14:16
by: cnidocyte |
Keeping OTC chemicals OTC and bringing back home chemistry
My local pharmacist tells me that a supplier that used to supply generic chemicals no longer supplie ... |
13-2-2011 at 11:35
by: cnidocyte |
Preparation of ionic nitrites
[rquote=201550&tid=52&author=entropy51]What was the source of the KNO3? How did you recryst ... |
13-2-2011 at 09:44
by: cnidocyte |
Tin (II) Chloride
I added some 20% hydrochloric acid (which I distilled from drain cleaner) to some lead free solder a ... |
13-2-2011 at 09:09
by: cnidocyte |
Preparation of ionic nitrites
[rquote=717&tid=52&author=Polverone]I tested a slightly modified version of Muspratt's nitri ... |
13-2-2011 at 08:27
by: cnidocyte |
Glacial acetic acid...
[rquote=192202&tid=4122&author=Hexagon]What about freeze distillation of white vinegar?
I ... |
12-2-2011 at 14:58
by: cnidocyte |
Palladium on charcoal Nope question
I wanna make some of this from palladium metal. I know I could dissolve Pd with aqua regia but would ... |
12-2-2011 at 14:43
by: cnidocyte |
Preparation of ionic nitrites
[rquote=103831&tid=52&author=kmno4]
NaNO2 content is easy to determinate using KMnO4/H2SO4. ... |
12-2-2011 at 00:28
by: cnidocyte |
Thermal decomposition of KNO3
[rquote=200999&tid=15417&author=not_important]
Describe your recrystallisation process in d ... |
8-2-2011 at 12:08
by: cnidocyte |
Thermal decomposition of KNO3
[rquote=200455&tid=15417&author=Retard-3000]Recrystalize it and try again[/rquote]
I recr ... |
7-2-2011 at 12:31
by: cnidocyte |
Making biuret reagent
I wonder if citrate can be used as a substitute to tartrate similar to the way its used in Benedicts ... |
4-2-2011 at 10:10
by: cnidocyte |
Distilling HCl
[rquote=200371&tid=9386&author=Cynic]
Been lurking here for some time and am learning a gre ... |
2-2-2011 at 12:11
by: cnidocyte |
MgSO4
Can you dry polar solvents with MgSO4 and other common drying agents? I was under the impression tha ... |
2-2-2011 at 08:08
by: cnidocyte |
Making biuret reagent
The wiki page claims that its made with Cu(II)SO4, KOH and potassium sodium tartrate. I thought that ... |
2-2-2011 at 08:00
by: cnidocyte |
Thermal decomposition of KNO3
I saw on a youtube video, a boiling tube of NaNO3 converted to NaNO2 by flaming the boiling tube:
h ... |
2-2-2011 at 06:59
by: cnidocyte |
Anti bumping measures
[rquote=200378&tid=15408&author=Contrabasso]The little glass "cubes" from a broken car windo ... |
2-2-2011 at 06:09
by: cnidocyte |
Methanol --> Formic Acid
Yesterday I added some K2MnO4 to 15mL of pure methanol and noticed that no reaction occured at room ... |
2-2-2011 at 05:43
by: cnidocyte |
Anti bumping measures
Firstly I've had the idea that stirring prevents bumping for a while now but I can't remember where ... |
31-1-2011 at 14:16
by: cnidocyte |
Common accidents in the lab and how to avoid them
A lesson I just learned. Never turn on the stirrer if the solution is already boiling/bumping. I was ... |
31-1-2011 at 13:24
by: cnidocyte |
Distilling HCl
I almost had a serious accident just there. I was distilling HCl and I checked on it and noticed it ... |
31-1-2011 at 13:07
by: cnidocyte |
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