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extraction of lanosterol
This was from a paper on the extraction of lanosterol.
[i]First, the saponification of the crude ... |
23-5-2018 at 03:16
by: soma |
Removal of Na2SO4 from Mg(OH)2
After reacting MgSO4 with NaOH I want to remove the Na2SO4. I've tried filtering which was very slow ... |
14-5-2018 at 02:59
by: soma |
tlc problem
I'm having a tlc problem. I'm using a ipa:hexane:NH4OH 4:1:1 eluant. The 1st run gave 2 spots - 1 at ... |
27-4-2018 at 03:09
by: soma |
tlc plate cutter
Wondering if there is a scissor made for cutting plastic and aluminum tlc plates that can make good ... |
5-4-2018 at 01:55
by: soma |
dessicator drying methods
I've got some n-acetylcysteine amide that was recrystalized from ethanol. I want to dry it but it's ... |
23-3-2018 at 03:18
by: soma |
reverse phase silica and tlc plates
I'm looking for reverse phase silica and tlc plates. I got a .2 and .8 rf using normal phase tlc on ... |
22-2-2018 at 02:05
by: soma |
solubility of magnesium hydroxide
I used a sintered funnel and vacuum. I filtered about 1/4 of the whole thing in a couple hours. It c ... |
29-12-2017 at 20:05
by: soma |
solubility of magnesium hydroxide
[rquote=501881&tid=79323&author=sclarenonz]Good morning, I'm trying to isolate the magnesium ... |
29-12-2017 at 19:56
by: soma |
solubility of magnesium hydroxide
[rquote=501873&tid=79323&author=walruslover69]How much Mg(OH)2 are you dealing with? [/rquot ... |
29-12-2017 at 19:51
by: soma |
solubility of magnesium hydroxide
I recently ran a reaction between MgSO4 and NaOH in water. The Mg(OH)2 is hard to filter out. I'm wo ... |
29-12-2017 at 06:35
by: soma |
solubility of methanol
I'm wondering why alkanes like hexane and heptane, etc., are miscible with ethanol or propanol but n ... |
5-12-2017 at 03:40
by: soma |
Changing composition of eluent mixture during liquid chromatography
Thanks. |
28-10-2017 at 05:08
by: soma |
Changing composition of eluent mixture during liquid chromatography
I'm looking for information on changing the composition of the eluent mix during a liquid chromatogr ... |
28-10-2017 at 03:31
by: soma |
% of ammonia in ethanol
Aldrich sells ammonia in ethanol in a 2M solution.
Does this mean --
There's 34 gms of ammonia ... |
19-10-2017 at 02:40
by: soma |
Use of ammonium hydroxide in ammonolysis.
One paper says to bubble ammonia into the reaction mix using acetone and dry ice to cool it. They're ... |
18-10-2017 at 03:03
by: soma |
clearly marked pipettes
I'm looking for bulb pipettes, .5 - 3 ml, that have easy to read markings. The ones I've got do not ... |
16-10-2017 at 02:27
by: soma |
Synthesis of Ascorbic Acid
And, of course, apricot kernels.
[Edited on 16-9-2017 by soma] |
16-9-2017 at 01:19
by: soma |
Synthesis of Ascorbic Acid
Ascorbic acid = vitamin C.
Many plants contain small amounts of cyanide. E.g. types of bean sprou ... |
15-9-2017 at 00:20
by: soma |
Synthesis of Ascorbic Acid
I read that the "Osone - Cyanide" method of synthesis of ascorbic acid is the best and simplest.
... |
14-9-2017 at 00:27
by: soma |
Use of ammonium hydroxide in ammonolysis.
I understand that amino acid amides can be synthesized by dissolving the ester in alcohol and then b ... |
18-8-2017 at 02:19
by: soma |
milligram measurement date
Anyone know what date people developed the ability to weigh in milligrams? |
3-8-2017 at 01:02
by: soma |
vacuum oil
There's no NAPA real near where I am. With shipping it costs $2 less than the welch duoseal oil.
... |
28-7-2017 at 02:40
by: soma |
vacuum oil
I called NAPA. It seems they're using the vacuum oil for a/c comprewssors so I'm wondering if just ... |
27-7-2017 at 13:15
by: soma |
vacuum oil
Is there a generic alternative to welch duo-seal vacuum oil?
Thanks. |
26-7-2017 at 04:15
by: soma |
difference between NAC ester and NAC amide
I'm wondering how esterification or ammonolysis of n-acetyl cysteine would effect the pH and water s ... |
1-7-2017 at 02:09
by: soma |
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