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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! $0.50/gram
[rquote=522231&tid=84055&author=Loptr]Those that have purchased from me so far, could you do ...
20-6-2018 at 18:27
by: weilawei
Retort vs distiling flask (vertical neck w/y downward angled side arm) - differences?
Are we sharing terrible improvised distillation equipment now? My favorite was always the pyrex bowl ...
20-6-2018 at 08:02
by: weilawei
What are the hard white rubber stoppers made of ?
I have purchased from US Plastic (Tygon tubing). It was a smooth, painless, utterly uneventful trans ...
19-6-2018 at 19:14
by: weilawei
Making grinding medium from chopped pieces of rebar?
If you're going to use them in a mill, why not tumble them to break the edges?
19-6-2018 at 19:11
by: weilawei
Bad days in the lab or with glassware?
I have 5 drives from work, pulled because they claimed they didn't work. I haven't got around to tes ...
17-6-2018 at 07:49
by: weilawei
Looking to acquire a functional HP 5890 ii GC
Keep a watch on eBay. On a good day, you can pick up one for south of 450$ USD. You will need to put ...
17-6-2018 at 07:30
by: weilawei
Bad days in the lab or with glassware?
Broke a 50mL beaker just now by dropping my phone onto it. Thankfully, it was not in use.

Ahhh.. ...
16-6-2018 at 17:43
by: weilawei
Bad elements from ebay again
I like the old Fisher brand Castaloy ones, and they're not all that much more. Pretty sure they'll o ...
13-6-2018 at 17:08
by: weilawei
Separate Isopropyl Alcohol and Xylene
12°C ought to be enough with slow, careful fractionation on a good column. I've been working with a ...
12-6-2018 at 05:20
by: weilawei
Piece of science
"You do not have permission to preview drafts."

Edit: It works from the main site. Nice writeup!
...
6-6-2018 at 03:48
by: weilawei
Are there chinese hotplates & heating mantles as good as others but significantly cheaper?
I work in environments with potentially flammable atmospheres, so we make heavy use of explosion-pro ...
5-6-2018 at 10:53
by: weilawei
how to produce .1 Pa vacuum
Does yours leak? I looked it up on Amazon and the reviews almost invariably slammed it for that.
2-6-2018 at 08:37
by: weilawei
Is there a solvent I can use to wash my vacuum pump oil reservoir?
[rquote=520183&tid=83470&author=alking]Wouldn't you save 50/yr that way, where do you get 20 ...
1-6-2018 at 16:02
by: weilawei
Is there a solvent I can use to wash my vacuum pump oil reservoir?
Or buy a cylinder for 200$ and save 20$ every year? It pays for itself in 10 years if you use the ab ...
1-6-2018 at 12:47
by: weilawei
Vandium pentoxide substitute
My understanding is that vanadium pentoxide is often plated on a support from a solution of ammonium ...
31-5-2018 at 10:18
by: weilawei
Is there a solvent I can use to wash my vacuum pump oil reservoir?
A cylinder of CO2 for dry ice only costs me about $40 to fill, and the rental is about $50/year. Tha ...
31-5-2018 at 10:13
by: weilawei
how to produce .1 Pa vacuum
My rotary vane pump will pull down to 6 mTorr on fresh oil and seals. Average is 13-17 mTorr in a cl ...
26-5-2018 at 08:55
by: weilawei
Storage of liquid chlorine
I have an FEP bottle for bromine storage, which I keep at ~-13°C. If the power were to fail, it wou ...
25-5-2018 at 12:54
by: weilawei
Borosilitate glass broke on heating
A cheap polariscope (around 25$) would allow you to see strain in glassware for future experiments, ...
25-5-2018 at 10:55
by: weilawei
how much of a history does glassware keep?
[quote]The only thing to do was to keep the peroxide in a tank made of something that didn’t catal ...
22-5-2018 at 05:15
by: weilawei
Zageno?
HiMedia has excellent prices and availability for all sorts of things, stock items (I think my last ...
17-5-2018 at 10:33
by: weilawei
Zageno?
Can't see what the point of that site is then. It seems trivial to search the very large and very co ...
17-5-2018 at 05:22
by: weilawei
Oxalyl Chloride Challenge
[rquote=516849&tid=82462&author=theAngryLittleBunny][rquote=516842&tid=82462&author= ...
14-5-2018 at 12:43
by: weilawei
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