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(DIY) bushing/reducing adapter, 40/38 to 24/29
I bought a Soxhlet-extractor and overlooked that the top joint is way too large for my condenser. Wh ... |
1-4-2017 at 14:55
by: tandpasta |
Special tubes for low-speed centrifuge?
The pockets have plastic test tube holders, so a broken tube's contents won't enter the machine.
... |
17-3-2017 at 09:17
by: tandpasta |
Special tubes for low-speed centrifuge?
I scored a free centrifuge. It was used at a physician's office for preparing urine sediment.
[ ... |
17-3-2017 at 04:49
by: tandpasta |
how to extract pure nicotine ???
No. There is no 'one' lethal dose. You give a number of mice (or other animals) a certain dose of a ... |
19-7-2016 at 04:44
by: tandpasta |
Short question / quick answer - Thread
I don't think this is really a 'energetic materials' question, but I figured you guys would know bes ... |
6-7-2016 at 15:29
by: tandpasta |
Distillation of Paint Thinner and Parent Problems
Why at 60C? DCM boils at 39.6C. Won't you get more impurities if you distill at that high of a tempe ... |
6-7-2016 at 15:07
by: tandpasta |
What can be done with these glass columns?
Those barking dogs and Jacob's Ladders look tempting. But I don't want to die (yet).
Sulaiman, I ... |
6-7-2016 at 14:49
by: tandpasta |
Equipment that can analyze API concentration of medications?
Afaik any decent HPLC setup can be used for quantitative analysis. I suspect that the most critical ... |
5-7-2016 at 13:40
by: tandpasta |
how to extract pure nicotine ???
This guy took over 5 grams and only died after 64 hours: http://www.sciencedirect.com/science/articl ... |
5-7-2016 at 03:26
by: tandpasta |
What can be done with these glass columns?
Sulaiman, do you have some theoretical material on what a Jacob's Ladder is exactly? Google and the ... |
4-7-2016 at 13:32
by: tandpasta |
What can be done with these glass columns?
I found these large glass columns, and I was wondering what one could do with them, besides maybe tu ... |
4-7-2016 at 07:58
by: tandpasta |
Butyl acetate -> THF, at all possible/feasible/practical?
Would you guys consider this doable for a rank beginner? The steps that PH Z gave look quite doable, ... |
2-7-2016 at 02:29
by: tandpasta |
Prevent dichloromethane/water emulsions?
Metacelsus, yeah, that was caused by two of my errors:
1. only ordering filter paper impregnated ... |
1-7-2016 at 03:58
by: tandpasta |
Prevent dichloromethane/water emulsions?
The below story is not really relevant to my question, which is at the end (bolded).
I tried to e ... |
30-6-2016 at 14:42
by: tandpasta |
Butyl acetate -> THF, at all possible/feasible/practical?
I found out that the leftover can of paint stripper I have laying around contains butyl acetate. Of ... |
30-6-2016 at 14:15
by: tandpasta |
Purification of denatured alcohol
What kind of equipment would be required for removing methyl ethyl ketone and denatonium benzoate fr ... |
17-5-2016 at 14:14
by: tandpasta |
Removing smell from polypropylene bottles
The smell has gone, but not fully. I guess due to the low strength of the HCl solution (<5%). Is ... |
17-5-2016 at 14:02
by: tandpasta |
Removing smell from polypropylene bottles
I will try the bleach solution and let you know the results in a few days. |
12-5-2016 at 01:43
by: tandpasta |
Removing smell from polypropylene bottles
I have two small sauce bottles made from pp which keep smelling like their previous contents, barbec ... |
4-5-2016 at 02:20
by: tandpasta |
Condensing water vapor (cold trap) without dry ice
That doesn't sound easy (or cheap). |
30-6-2015 at 15:29
by: tandpasta |
Condensing water vapor (cold trap) without dry ice
I'm not sure how cold I need to go, but my vacuum pump has a water vapor tolerance of 15 mbar.
jo ... |
22-6-2015 at 12:49
by: tandpasta |
Condensing water vapor (cold trap) without dry ice
I'm trying to learn how to freeze dry/lyophilize things. This tends to produce a lot of wator vapor ... |
21-6-2015 at 12:10
by: tandpasta |
Best non-polar solvent for caffeine
Well, everything is toxic in large enough doses. Since ethanol is what common folk call alcohol, it ... |
24-1-2015 at 07:06
by: tandpasta |
Help with new vacuum pump
I've found a manual for a newer version of the pump (same thing, essentially). But most of my questi ... |
22-1-2015 at 11:39
by: tandpasta |
Help with new vacuum pump
I managed to acquire a rotary vane vacuum pump for cheap. It's a Leybold-Heraeus S1,5, an old model ... |
22-1-2015 at 06:16
by: tandpasta |
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