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Dodgy chinese glass transactions
IMHO, Pyrex is overrated. I'd take a Chinese GG-17 flask from Nanshin over a Pyrex one any day.

S ...
21-2-2017 at 13:54
by: JJay
Red Acetone?
I am guessing that the red material was an aldol condensation product.

I don't know what the blue ...
21-2-2017 at 08:38
by: JJay
Red Phosphorus (legal uses)
These days, phosphorus is rarely used to make illegal drugs. Ephedrine is no longer as freely as ava ...
21-2-2017 at 05:18
by: JJay
Dodgy chinese glass transactions
If I'm ordering a really important piece of glassware from China, I try to stick with Nanshin, Getty ...
21-2-2017 at 03:17
by: JJay
Dodgy chinese glass transactions
I suspect that Yee Chen resells returned items or items that didn't meet quality standards.

I'm c ...
21-2-2017 at 00:22
by: JJay
Dodgy chinese glass transactions
I got a short path condenser from biwecity a while back, and the order turned out OK, but the item w ...
20-2-2017 at 23:06
by: JJay
In honor of going over 1000 posts
Oh, congrats. I'm trying to get a cool title like "Secret Agent" under my nick on the side... althou ...
20-2-2017 at 21:31
by: JJay
Last chemical order?
I bought some distilled water. I paid cash and didn't answer any questions. The cashier was being al ...
20-2-2017 at 05:33
by: JJay
Thought experiment: what happens when you put a blob of water on a surface made of sodium?
I think it depends on how clean and smooth the surface of the sodium is. If it's crusty and rough an ...
19-2-2017 at 19:47
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
[rquote=475296&tid=72394&author=PHILOU Zrealone][rquote=475261&tid=72394&author=JJay ...
19-2-2017 at 13:35
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
[rquote=475270&tid=72394&author=khourygeo77][rquote=475256&tid=72394&author=JJay]If ...
19-2-2017 at 09:03
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
[rquote=475258&tid=72394&author=PHILOU Zrealone]Maybe allowing HCl and NaNO2 to react with t ...
19-2-2017 at 07:10
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
If a centrifuge works, you can try increasing the density of the water/alcohol solution by dissolvin ...
19-2-2017 at 06:35
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
Ethanol freezes at -114 C... that's pretty cold.
19-2-2017 at 05:37
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
That's a difficult problem... possibly you could add something that would form a lower-boiling azeot ...
19-2-2017 at 05:29
by: JJay
Sodium Ethyl Sulfate
I've actually never tried using excess sulfuric acid, but I've seen that recommended in a couple of ...
19-2-2017 at 05:20
by: JJay
How to separate terpenes and sesquiterpenes dissolved in alcohol
Do the terpenes/sesquiterpenes form any azeotropes with the alcohol?
19-2-2017 at 05:13
by: JJay
Does anyone have experience setting up an account with Sigma?
I haven't read about many, but chemists have certainly died over the centuries, and it's hard to thi ...
19-2-2017 at 03:47
by: JJay
Last chemical order?
I ordered some tartaric acid for making Fehling's solution :)

My, we are having lovely weather to ...
19-2-2017 at 02:46
by: JJay
Does anyone have experience setting up an account with Sigma?
I would think that you could set up a cash account with Alfa Aesar without showing them your bank re ...
19-2-2017 at 01:49
by: JJay
Hittorf's violet phosphorus
That link requires a login.
18-2-2017 at 23:42
by: JJay
Reagents for the preparation of acid chlorides: pros and cons
Trifluoroacetic mixed anhydrides can often substitute for acyl chlorides. Trifluoroacetic anhydride ...
18-2-2017 at 22:46
by: JJay
Sodium Ethyl Sulfate
I'm halfway tempted to give this another shot knowing what I know now. I'd like to know the melting ...
18-2-2017 at 21:59
by: JJay
(UK) long-term chemophobia persecution campaign
In the U.S., at least, court appointed attorneys are usually better than all but the very best priva ...
18-2-2017 at 21:02
by: JJay
Sodium Ethyl Sulfate
Adding calcium carbonate is a mess... and you have to stir it to prevent wasting calcium carbonate. ...
18-2-2017 at 16:19
by: JJay
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