Not logged in [
Login
]
Search
FAQ
Member List
Today's Posts
Stats
Back to:
Sciencemadness Discussion Board
» Search
Select A Forum
Fundamentals
» Chemistry in General
» Organic Chemistry
» Beginnings
» Responsible Practices
» Miscellaneous
Engineering and Equipment
» Reagents and Apparatus Acquisition
» Electronics
» Process Engineering
» Materials and Metallurgy
Special Topics
» Analytical Chemistry
» Electrochemistry
» Energetic Materials
» Biochemistry
» Radiochemistry
» Computational Models and Techniques
Literature and Documentation
» Sciencemadness Wiki
» Prepublication
Non-science
» Forum Matters
» Legal and Societal Issues
Search
[Next Page]
Any method to convert potassium dichromate to ammonium dichromate?
Convert it in to potassium chromate with KOH and then make ammonium chromate by fractional crystalli ...
6-12-2019 at 12:56
by: Bedlasky
Masking of nitrite during nitrate determination
With nitrite free standard it was ok. But we have in work samples contain both - nitrite and nitrate ...
26-11-2019 at 09:02
by: Bedlasky
Masking of nitrite during nitrate determination
Hi.
I tried to determinate nitrate spectrophotometrically as 4-nitro-2,6-dimethylphenol. I had st ...
26-11-2019 at 00:14
by: Bedlasky
How strict are you about using distilled water vs nondistilled/faucet water in your reactions?
For test tube reactions I use tap water in most of cases. Here is soft water with high content of Fe ...
22-11-2019 at 17:49
by: Bedlasky
Christmas is approaching , any ideas ?
Blue bottle reaction, chemical chameleon and Briggs-Rauscher reaction are beautiful colour-changing ...
20-11-2019 at 10:44
by: Bedlasky
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite
If it is soluble in ammonia, try reducing by nascent hydrogen in alkaline media (as a source of hydr ...
18-11-2019 at 08:13
by: Bedlasky
Pink salicylic acid solution
[rquote=626367&tid=154314&author=rockyit98][rquote=626359&tid=154314&author=Bedlasky ...
18-11-2019 at 07:25
by: Bedlasky
Pink salicylic acid solution
I read on the internet that Fe3+ complex with salicylic acid is blue.
17-11-2019 at 13:04
by: Bedlasky
Pink salicylic acid solution
I found one topic on sciencemadness about it:
[url=http://www.sciencemadness.org/talk/viewthread. ...
16-11-2019 at 11:10
by: Bedlasky
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite
Very interesting compound! I found some material about Cu-nitrosyl, peroxynitrite and nitro complexe ...
16-11-2019 at 11:08
by: Bedlasky
Nitrite in acidic solution
Reagents are aminonaphtalenesulfonic acid and sulfanilic acid.
16-11-2019 at 11:00
by: Bedlasky
Nitrite in acidic solution
Hi.
We had in work today acidic sample which contains lots of nitrite. I was surprised because ni ...
11-11-2019 at 11:33
by: Bedlasky
Pink salicylic acid solution
I prepared it just by simply dissolving of salicylic acid in methanol.
Salicylic acid was p.a. qu ...
11-11-2019 at 11:16
by: Bedlasky
Pink salicylic acid solution
Hi.
I prepared solution of salicylic acid in methanol in the work for several times and it always ...
10-11-2019 at 12:01
by: Bedlasky
Synthesis of sodium thiocyanate.
If I know thiocyanates are produce in laboratory by heating potassium ferrocyanide with sulfur.
21-9-2019 at 12:33
by: Bedlasky
Gassing myself with hydrogen sulphide...
Laboratory assistant from my former school was once (few decades back) bubbling H2S gas through NaOH ...
20-9-2019 at 13:58
by: Bedlasky
Ethyl acetate and butyl acetate uses and storage
It seems you don't understand me. I know that CrO5 is unstable. In organic solvent is more stable. I ...
20-9-2019 at 06:18
by: Bedlasky
Ethyl acetate and butyl acetate uses and storage
I know that CrO5 is unstable. But in organic solvent is far more stable than in water. I once try se ...
20-9-2019 at 01:48
by: Bedlasky
Sensitive test for gold
[rquote=623160&tid=154025&author=Tsjerk]Nice test, but isn't it a disadvantage it also react ...
18-9-2019 at 14:56
by: Bedlasky
Sensitive test for gold
Hi.
I read in the book about testing for gold with TiCl3. So I decided to test it and it works re ...
18-9-2019 at 13:11
by: Bedlasky
Ethyl acetate and butyl acetate uses and storage
Hi.
I want some ethyl acetate and butyl acetate to stabilizing CrO5. But the smallest bottle whic ...
13-9-2019 at 21:44
by: Bedlasky
SbCl3 + Na2S2O3 = something interesting + corrosive fumes of what?
Teodor: Where you get Sb2O3?
12-9-2019 at 08:51
by: Bedlasky
Malonic acid
Hi.
Exist any common source of malonic acid? I don't know where I find this acid - on the interne ...
12-9-2019 at 08:47
by: Bedlasky
Elemental sulfur from sulfates?
[rquote=622563&tid=153772&author=hodges]So maybe the same thing would work with SO2, which c ...
9-9-2019 at 23:16
by: Bedlasky
Elemental sulfur from sulfates?
[rquote=622532&tid=153772&author=Alkoholvergiftung]
If you use Ironsulfate it will go at ro ...
9-9-2019 at 08:15
by: Bedlasky
[Next Page]
Sciencemadness Discussion Board
» Search
Select A Forum
Fundamentals
» Chemistry in General
» Organic Chemistry
» Beginnings
» Responsible Practices
» Miscellaneous
Engineering and Equipment
» Reagents and Apparatus Acquisition
» Electronics
» Process Engineering
» Materials and Metallurgy
Special Topics
» Analytical Chemistry
» Electrochemistry
» Energetic Materials
» Biochemistry
» Radiochemistry
» Computational Models and Techniques
Literature and Documentation
» Sciencemadness Wiki
» Prepublication
Non-science
» Forum Matters
» Legal and Societal Issues