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

Search
[Next Page]
Preparation of Succinic Acid
Thank you both for the good comments.

I mentioned my prior use of methanol only as it was the s ...
3-10-2016 at 08:55
by: Magpie
Preparation of Succinic Acid
[b]Attempt at the preparation of succinic acid via hydrogenation of fumaric acid, a failure[/b]


...
2-10-2016 at 13:57
by: Magpie
Formaldehyde from Acetaldehyde and Formic Acid
The OP says he wants formaldehyde. Assuming he means an aqueous solution, ie, formalin, this is rea ...
1-10-2016 at 08:01
by: Magpie
Mercury-free Clemmensen reduction?
As I understand it the mercury, sometimes in the form of mercuric chloride (HgCl2), serves to dissol ...
1-10-2016 at 07:58
by: Magpie
Pressure cooker regulator weight help...
I wasn't' going to say anymore but this is too interesting.

If you really want to make a science ...
24-9-2016 at 14:36
by: Magpie
Pressure cooker regulator weight help...
A test could be performed to help assure that the modification of the weight is safe:

1. Prepare ...
23-9-2016 at 12:12
by: Magpie
How to adjust reflux ratio ?
Than you Jekyll! That is the best write-up on fractional distillation that I have seen. What's the ...
23-9-2016 at 08:20
by: Magpie
Pressure cooker regulator weight help...
Anytime you tell someone they can exceed normal operation you should have a sound basis for that. I ...
22-9-2016 at 20:26
by: Magpie
Pressure cooker regulator weight help...
Yes, I agree. I should have read more closely. He probably knows from experience that it takes lon ...
22-9-2016 at 19:49
by: Magpie
Pressure cooker regulator weight help...
I'm glad to try and help here.

Manufacturers and sellers of home pressure cookers don't deal in a ...
22-9-2016 at 18:46
by: Magpie
Pressure cooker regulator weight help...
Assuming you mean 15 psig (psi gage) where you live makes no difference. The size of the weight est ...
22-9-2016 at 16:01
by: Magpie
How to adjust reflux ratio ?
A distillation column can have trays, sieve plates, or packing. For trays it is easy to visualize a ...
21-9-2016 at 14:01
by: Magpie
Starch-Iodide Test Papers
You're welcome aga. I also did another interesting test for nitrite:

Prepare a small ice bath us ...
16-9-2016 at 09:55
by: Magpie
Starch-Iodide Test Papers
Before you throw out your nitrite make a dilute aqueous solution, then add a few drops of HCl or H2 ...
15-9-2016 at 18:43
by: Magpie
Acetaldehyde synthesis
Very nice. I like the simplicity. Does the CaCl2 absorb water? Are azeotropes a concern? Did you ...
14-9-2016 at 22:08
by: Magpie
literature searches
I can search by citation or by subject.
13-9-2016 at 11:11
by: Magpie
literature searches
I have access to ACS journals through any state library. But I don't know if other US residents hav ...
13-9-2016 at 10:44
by: Magpie
Acetaldehyde synthesis
[rquote=460892&tid=55&author=nux vomica]
I find i use the peristaltic pump more than a drop ...
13-9-2016 at 08:58
by: Magpie
Looking over the border: EU-Regulations
I would hate to see the US go the way of the EU, but it probably will eventually.

Some day we are ...
13-9-2016 at 08:50
by: Magpie
Acetaldehyde synthesis
Nice going nux! Please give us the details on this preparation including purification and the yield ...
12-9-2016 at 19:47
by: Magpie
university surplus sales
Here's a picture of my latest haul - not much but cost me only $4.50.

There was a whole box of 12 ...
12-9-2016 at 19:37
by: Magpie
Starch-Iodide Test Papers
[rquote=460863&tid=68620&author=aga]
If my Starch papers are crap, Please state Why, and ho ...
12-9-2016 at 17:09
by: Magpie
Starch-Iodide Test Papers
[rquote=460863&tid=68620&author=aga]Please explain.

All i got left is to make benzene in ...
12-9-2016 at 15:33
by: Magpie
Starch-Iodide Test Papers
I think any kind of paper will work, obviously white will be better for seeing the color change to b ...
12-9-2016 at 14:19
by: Magpie
Calculate your fractionating column
My columns are smaller ID, about 1/2". I use some ss scrub pad when I can but go to broken glass wh ...
11-9-2016 at 17:32
by: Magpie
[Next Page]

  Go To Top