Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
@monolithic, there is some known method to make revenue on small orders - selling by catalogue, when ...
6-11-2020 at 11:51
by: teodor
Eye-opening lab seizure
charley1957, you are welcome, if somebody needs my help to collect more cases like that I can invest ...
6-11-2020 at 10:26
by: teodor
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
[rquote=648424&tid=156488&author=Fyndium]common order is like 30 dollars + shipping[/rquote] ...
6-11-2020 at 09:54
by: teodor
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
[rquote=648413&tid=156488&author=Cou] I think it's just very low demand.[/rquote]

Are the ...
6-11-2020 at 08:07
by: teodor
Preparation of elemental phosphorus
[rquote=639768&tid=65&author=Cou]I cant find any iron retorts online x( gonna have to learn ...
6-11-2020 at 07:37
by: teodor
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
@woelen I know about this company but it always was the case I checked their catalogue and didn't fi ...
6-11-2020 at 03:23
by: teodor
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
[rquote=648389&tid=156488&author=B(a)P]Selling to an individual is very different to selling ...
6-11-2020 at 02:55
by: teodor
Eye-opening lab seizure
It's not so simple. Many years ago I asked my friend's wife who worked in a laboratory as a professi ...
6-11-2020 at 02:07
by: teodor
Is a sodium sulfide/polysulfide/thiosulfate solution alright for halogen neutralization?
Lead in alkaline media could be precipitated for sure, except organolead compounds which needs addit ...
6-11-2020 at 01:51
by: teodor
Why is Chemsavers comfortable with shipping chemicals to residential addresses, but sigma/fisher/TCI/etc are not?
I tried to order from Fisher Benelux with company account but our company was registered in a reside ...
6-11-2020 at 01:29
by: teodor
Eye-opening lab seizure
From the book "Lost at Sea" by Jon Ronson:

I RECEIVE a slightly alarmed e-mail from Jason Bobe, w ...
5-11-2020 at 07:22
by: teodor
90 - 99% nitric acid using dichloromethane
[rquote=648274&tid=16589&author=B(a)P][rquote=648273&tid=16589&author=teodor]@Fundiu ...
5-11-2020 at 02:07
by: teodor
90 - 99% nitric acid using dichloromethane
@Fundium : see Brauer and/or sciencemadness wiki. Of course it is possible, the method of dealing wi ...
5-11-2020 at 01:11
by: teodor
Nitric acid
@Housane so, to stay legal, I suppose, we need either method of direct HNO3 distillation of required ...
5-11-2020 at 00:29
by: teodor
Nitric acid
OK, I think I found the answer.
http://www.personal.psu.edu/mrh318/Gmitro-Vermeulen-AICE-1964.pdf , ...
4-11-2020 at 23:38
by: teodor
Eye-opening lab seizure
My point is, if is there only one case like that in the last 12 years it is very sad, but still ther ...
4-11-2020 at 23:16
by: teodor
Nitric acid
But I don't bother about HNO3 concentration, I am curious about the percentage of H2SO4 to HNO3 in t ...
4-11-2020 at 15:32
by: teodor
Nitric acid
I am wondering, will the distillation of 15% H2SO4 with some nitrate give HNO3 or at this starting c ...
4-11-2020 at 15:03
by: teodor
Report on making Prussian Blue
[rquote=648229&tid=156468&author=unionised]When i was a chemistry student there was a joke t ...
4-11-2020 at 13:21
by: teodor
Report on making Prussian Blue
[rquote=648225&tid=156468&author=Bedlasky]Teodor: I don't think that prussian blue is trully ...
4-11-2020 at 13:12
by: teodor
Nitric acid
So, I assume people in UK were forced to switch to dinitrogen pentoxide and oleum.
4-11-2020 at 13:05
by: teodor
Report on making Prussian Blue
Some people also say there is no such thing as nascent hydrogen :) I have to check this difference b ...
4-11-2020 at 11:55
by: teodor
Nitric acid
I think the volume in the bottle also plays some role. I just distilled 20ml of azeotrope from the l ...
4-11-2020 at 11:07
by: teodor
Report on making Prussian Blue
Did you get Prussian blue or Turnbull's blue? I am asking because you used potassium ferricyanide .
...
4-11-2020 at 09:55
by: teodor
Nitric acid
Yes, azeotropic HNO3 fumes slightly. I usually use a volumetric pipette and balances for density mea ...
4-11-2020 at 09:26
by: teodor
[Next Page]

  Go To Top