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Looking for cheap bottles, 250, 500, 1000ml. Any recommendations?
I've thought about that, but I'd prefer something more reliable/standard. If all of the lids are the ...
7-9-2018 at 09:24
by: alking
Looking for cheap bottles, 250, 500, 1000ml. Any recommendations?
I use those reagent bottles with the ptfe caps you find all over ebay and the like, they generally r ...
6-9-2018 at 09:17
by: alking
Safe to buy from China?
I like deschem and nanshin on ebay. Both are good quality 95% of the time as others have said. Somet ...
6-9-2018 at 09:09
by: alking
Catalytic hydrogenation - preparation of hydrogen in situ
[rquote=526650&tid=86141&author=Chemi Pharma]@alking, oh, ok! and may be you think 1 gram is ...
31-7-2018 at 10:26
by: alking
Catalytic hydrogenation - preparation of hydrogen in situ
Pd/c is difficult to recover and only reusable once or twice? So long as what you're hydrogenating i ...
30-7-2018 at 14:26
by: alking
Catalytic hydrogenation - preparation of hydrogen in situ
Yes, that is very common. The metal hydrides are the most common commercially but generally more dif ...
28-7-2018 at 19:27
by: alking
Optimizing Henry reaction conditions (substituted benzaldehydes + nitromethane)
When I've done this reaction before with i-PrOH/GAA as the solvent I have always used a moisture tra ...
28-7-2018 at 07:03
by: alking
New chemicals for sale !
I can't recommend mario enough, great guy. As one would say on ebay A+++++++plus.
17-7-2018 at 09:54
by: alking
Summer & collecting purified water from dehumidifier & AC
Same here, IDK what dollar amount I'd put on my time but it's well more than the time and effort it ...
10-7-2018 at 07:34
by: alking
Summer & collecting purified water from dehumidifier & AC
Distilled water is less than a dollar a gallon. Why skimp on literally the cheapest solvent in your ...
8-7-2018 at 16:24
by: alking
Optimizing Henry reaction conditions (substituted benzaldehydes + nitromethane)
I thought you were asking if PEA Freebase smells at RT or with use in this reaction, not if you boil ...
6-7-2018 at 08:05
by: alking
Optimizing Henry reaction conditions (substituted benzaldehydes + nitromethane)
PEA should not smell much due to the high bp.
5-7-2018 at 11:22
by: alking
Hexane or Pentane?
Pentane is essentially hexane with a lower boiling point from an application standpoint, and as ment ...
5-7-2018 at 11:19
by: alking
Stationary for aqueous normal phase or reverse phase column chromatography
If you're trying to separate amines why would you want a reverse phase system? They would come out l ...
30-6-2018 at 13:40
by: alking
Ordering PTFE stir bars - which are best sizes/shapes?
If I could only have 1 set I'd go with the first, but I use both #1 and #2 depending on the applicat ...
27-6-2018 at 11:59
by: alking
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
No, that's what I meant by "contaminants aside." I was just speaking of dry distilling in general as ...
17-6-2018 at 10:11
by: alking
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
Here's the reference I mentioned yesterday, it actually was posted here, I didn't realize that.

...
17-6-2018 at 08:21
by: alking
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
I didn't realize this thread had more replies. I never intended to distill to dryness, I was just ho ...
16-6-2018 at 13:24
by: alking
Black Substance Formed by Reacting Aluminum with NaOH
Yeah, aluminium foil is very pure, but it has all kinds of minor impurities. That's likely going to ...
16-6-2018 at 03:34
by: alking
Disappearance of nitroethane
I wouldn't say it's under control because the country is being flooded with meth from outside, that' ...
7-6-2018 at 11:40
by: alking
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
I don't have any KI on hand to do so. I have some Alumina that I could use but I'd rather not waste ...
3-6-2018 at 15:40
by: alking
Does washing ether with a hydroxide solution make it safe enough to distill to dryness?
Wouldn't any peroxides be washed away? What if you were to just add some water and distill it from t ...
3-6-2018 at 12:46
by: alking
Is there a solvent I can use to wash my vacuum pump oil reservoir?
Wouldn't you save 50/yr that way, where do you get 20? (nevermind, got in before your edit) However ...
1-6-2018 at 13:17
by: alking
Is there a solvent I can use to wash my vacuum pump oil reservoir?
Exactly. A cheap rotary vane pump costs ~$60. Why would I spend 50$/yr and 40$ everytime I need to f ...
1-6-2018 at 11:52
by: alking
Lowes pulls paint stripper from shelves! How to make DCM
[rquote=520042&tid=83517&author=VSEPR_VOID][rquote=520034&tid=83517&author=UC235]It' ...
31-5-2018 at 10:02
by: alking
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