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Picric acid sensitivity
[quote]If it were me, I'd avoid anything organic, other than known soap molecules.[/quote]Interestin ... |
22-12-2009 at 13:58
by: entropy51 |
More chemists is the best tactic for more acceptance of chemistry.
quicksilver, I am all for being careful and not doing anything dumb. I think keeping a low profile ... |
22-12-2009 at 11:06
by: entropy51 |
Indole Synthesis
[rquote=167821&tid=13152&author=Waffen SS]My believe is my believe and this is chemistry for ... |
22-12-2009 at 08:44
by: entropy51 |
Diethylsulfide from potassium ethylsulfate and sodium sulfide
[quote]my whole basement and stairway smelled like rotten eggs. in my basement is a huge concentrati ... |
22-12-2009 at 07:54
by: entropy51 |
Indole Synthesis
Well, John, for once I have to agree with you (I always agree with Nicodem, I'm no dummy), this does ... |
21-12-2009 at 17:06
by: entropy51 |
Diethylsulfide from potassium ethylsulfate and sodium sulfide
[quote]The vapor of the stuff would also be highly toxic by inhalation, in the same way as H2S[/quot ... |
21-12-2009 at 16:59
by: entropy51 |
Career's in chemistry?
[rquote=167786&tid=13111&author=texaspete]Sorry about that, there's a reason I'm not an engl ... |
21-12-2009 at 15:17
by: entropy51 |
Mystery of the yellow benzophenone
I believe dioxybenzone is also used in sunscreens, is yellow, and insoluble in H2O.
E-bay? |
21-12-2009 at 12:10
by: entropy51 |
Diethylsulfide from potassium ethylsulfate and sodium sulfide
[quote]destilling mustard gas is not really smart. it decomposes at his boiling point[/quote]The usu ... |
21-12-2009 at 11:09
by: entropy51 |
Diethylsulfide from potassium ethylsulfate and sodium sulfide
[quote]well the french chemist alfred riche made Mustard Gas 1854 from chlorine and diethylsulfide[/ ... |
21-12-2009 at 10:56
by: entropy51 |
More chemists is the best tactic for more acceptance of chemistry.
quicksilver, I think Polverone may have been noticed by a meter reader. My recollection is that som ... |
21-12-2009 at 10:35
by: entropy51 |
Our Beloved Nitric Acid
[rquote=167681&tid=12899&author=DetaDude]I've heard of using P2O5 to pull the H2O from HNO3 ... |
20-12-2009 at 14:45
by: entropy51 |
Our Beloved Nitric Acid
[quote]Why some people are making a big deal out of it is beyond me?
Chill out. . .[/quote]As a cha ... |
20-12-2009 at 08:19
by: entropy51 |
Phosphoryl Halides - From P4O10 & Halide Salts
So the oil flashed while you were carrying it then? What kind of oil was it? What was the heat sou ... |
20-12-2009 at 06:42
by: entropy51 |
Indole Synthesis
Waffen, I told you that making ketene without a fume hood wasn't good for you! |
19-12-2009 at 13:26
by: entropy51 |
Phosphoryl Halides - From P4O10 & Halide Salts
I hope you're recovering, unome. Please do let us know what happened; lots of us use oil baths and w ... |
19-12-2009 at 11:01
by: entropy51 |
Indole Synthesis
[rquote=73504&tid=3963&author=Nicodem]There is no method to prepare indole itself by using t ... |
19-12-2009 at 07:30
by: entropy51 |
Our Beloved Nitric Acid
[rquote=166947&tid=12899&author=DetaDude]Has anyone tried concentrating nitric with a reflux ... |
18-12-2009 at 16:43
by: entropy51 |
Pd/C
I know, but when I worked in industry we never recycled hydrogenation catalysts. I once asked asked ... |
18-12-2009 at 15:31
by: entropy51 |
Pd/C
[url=http://www.preciouscatalyst.com/recycling_catalyst.htm]One[/url] answer from Googling. |
18-12-2009 at 11:34
by: entropy51 |
Career's in chemistry?
Then the wording should have been something like:
Only the engineers, but not science majors, par ... |
18-12-2009 at 11:29
by: entropy51 |
Career's in chemistry?
[quote]However, those people are only engineers[/quote][b]Only[/b] engineers? WTF?
They will [b]o ... |
18-12-2009 at 06:37
by: entropy51 |
Hardware store chemicals - questions
[quote]Destined to become Rooto/LL maybe[/quote]More likely to a Gulf coast oil refinery. I believe ... |
18-12-2009 at 06:31
by: entropy51 |
Our Beloved Nitric Acid
[quote]There is a condenser that is made just for reflux operations and it is very similar to a Grah ... |
18-12-2009 at 06:28
by: entropy51 |
Commercial chemical analysis services
Some very useful tests for practical levels of purity, including quantitative assays, can be found i ... |
17-12-2009 at 13:38
by: entropy51 |
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