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Everyday Chemistry (provisional)
Screwed up and made a pretty hefty amount of bismuth oxynitrate. Went and hydrolyzed my bismuth (III ...
24-9-2018 at 17:39
by: weilawei
How to deal with oil mist on vacuum pumps?
If you've got a gas ballast on your pump, you'll see a mist as long as that's open, also. Mine has a ...
22-9-2018 at 01:02
by: weilawei
Liquid Lewis acids
Boron tribromide looks like a nightmare to make. Boron carbide and liquid bromine at 300°C? Whoa. I ...
19-9-2018 at 11:38
by: weilawei
Bad days in the lab or with glassware?
I'm down one 50mL beaker and I cracked the thermometer joint on my short path head. I don't usually ...
11-9-2018 at 10:19
by: weilawei
Preserving Chemistry Channels
WGTR: I was rather heavily involved with Freenet at a point many years ago, and was intimately famil ...
11-8-2018 at 02:23
by: weilawei
Looking for a decent spray on coating that is resistant to common solvents at RT
I spend a lot of time working with silicone (specifically polydimethylsiloxane and derivatives). It' ...
6-8-2018 at 13:39
by: weilawei
Water desalination in deep sea water - using pressure of the deep - possible?
It seems like you would pay a similar price either way. It's a shame. It looked promising, but you'r ...
3-8-2018 at 16:49
by: weilawei
Water desalination in deep sea water - using pressure of the deep - possible?
If you pull water out the top, the height difference will increase until the pressure difference is ...
3-8-2018 at 15:10
by: weilawei
Water desalination in deep sea water - using pressure of the deep - possible?
If you remove water from a pipe immersed in thing of water, the entire surrounding water will drop u ...
3-8-2018 at 12:30
by: weilawei
Increasing water pump pressure using 2 pumps in series?
This is why centrifugal pumps are nice. You can often pump utter junk for a fluid, and running dry i ...
1-8-2018 at 01:54
by: weilawei
Cleaning brand new glass, is it necessary?
Some sellers sell them pre-cleaned, and this is often expensive. Mostly, unless it's something with ...
30-7-2018 at 05:08
by: weilawei
Unknown product made by accident
Well, how about taking a melting point for starters?
29-7-2018 at 11:14
by: weilawei
This forum needs more moderators
How about hashcash? Force a new user to do a time-consuming computation. Force another round to repl ...
28-7-2018 at 01:57
by: weilawei
Increasing water pump pressure using 2 pumps in series?
Assuming you stay within the max pressure of the pump, you can get better suction by going from a la ...
26-7-2018 at 06:54
by: weilawei
How do you clean stubbornly dirty glassware when no solvent seems to work?
Don't store it. Make it, use it, neutralize it, and dispose of it in one session. See instructions o ...
20-7-2018 at 12:56
by: weilawei
Last chemical order?
454g of Hg. Yeehaw! Gotta love auctions that go cheaply.
4-7-2018 at 08:39
by: weilawei
Sodium Borohydride (NaBH4) For Sale! $0.50/gram
Well, I've been sittting on a curiosity for a couple weeks now, between vacation and work. The paper ...
4-7-2018 at 08:30
by: weilawei
Ordering PTFE stir bars - which are best sizes/shapes?
Anyone happen to have one of the dumbell shaped ones for sale? I've had a real run lately of stirbar ...
29-6-2018 at 14:27
by: weilawei
Sodium Borohydride (NaBH4) For Sale! $0.50/gram
[rquote=522444&tid=84055&author=Tsjerk]A quick non-quantitative test could be nice. Do you h ...
21-6-2018 at 18:42
by: weilawei
Sodium Borohydride (NaBH4) For Sale! $0.50/gram
I do. That looks perfect, and I'll give that a whirl after work. Thanks Tsjerk. :)
21-6-2018 at 05:20
by: weilawei
Sodium Borohydride (NaBH4) For Sale! $0.50/gram
[rquote=522231&tid=84055&author=Loptr]Those that have purchased from me so far, could you do ...
20-6-2018 at 18:27
by: weilawei
Retort vs distiling flask (vertical neck w/y downward angled side arm) - differences?
Are we sharing terrible improvised distillation equipment now? My favorite was always the pyrex bowl ...
20-6-2018 at 08:02
by: weilawei
What are the hard white rubber stoppers made of ?
I have purchased from US Plastic (Tygon tubing). It was a smooth, painless, utterly uneventful trans ...
19-6-2018 at 19:14
by: weilawei
Making grinding medium from chopped pieces of rebar?
If you're going to use them in a mill, why not tumble them to break the edges?
19-6-2018 at 19:11
by: weilawei
Bad days in the lab or with glassware?
I have 5 drives from work, pulled because they claimed they didn't work. I haven't got around to tes ...
17-6-2018 at 07:49
by: weilawei
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