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peach
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More seriously, my last lab order was;
HCl
DCM
Mercury Chloride
Sodium Nitrite
Thio urea
AlCl3
And from a less 'labby' related supplier;
PTC
I hate ordering from suppliers, it seems to take all the fun out of it. It's all about the total synthesis and inventiveness for me; turning everyday
things into something amazing. I do LOVE the colors the guys interested in dyes come out with on here, they're beautiful.
[Edited on 1-5-2010 by peach]
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peach
Bon Vivant
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I'm also genuinely interested in the potential of lysergides to alleviate headaches. I get them on such a regular basis that I can predict the hours
when they'll turn up. I've tried everything to get rid of them, normal pain killers and the special ibuprofen, codeine, paracetamol power trio,
changing the lighting in my house to SAD bulbs, drinking more water, less water, cutting anything artificial out of my diet, cutting caffeine, sugar
and carbohydrates out and all kinds of stuff, like changing my diet altogether or exercising until I've thrown up from exhaustion and overheating.
Nothing competes with lysergides for getting rid of the annoying bastards.
[Edited on 1-5-2010 by peach]
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Mildronate
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My new bromine, litlle bit of sulfuric, AlCl3 and potasium bromide
![](http://img32.imageshack.us/img32/962/050710191427.th.jpg)
![](http://img685.imageshack.us/img685/2544/050710191336.th.jpg)
[Edited on 9-5-2010 by Mildronate]
[Edited on 9-5-2010 by Mildronate]
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majortom
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Wow, thionyl chloride and sodium metal? Suspicious....
Either way very usefull chemicals for organic synth in general, its too bad they are so hard to get now.
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Globey
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Quote: Originally posted by Kaifas ![](images/xpblue/lastpost.gif) | Sodium salts dissolves much better than potassium salts so it is reason to use both potassium and sodium. I use oxidizers to do some Copper perclorate
(binds strongly to nitrogen bases) and copper(III) compounds and making different copper complexes . Copper(I)cyanade goes to Gillman reagents.
Copper(II)chloride is starting material to do Glacer couplings. Copper powder goes to Ullman coupling reactions.
Sodium nitrate is exellent for mild nitration systems because of good solubility.
It is difficult to byu chemicals here too. |
Wow, I guess I was taught wrong. I ALWAYS thought the potassium salts were more expensive, and more desirable and more expensive than the sodium
salts. Plus in many instances, the potassium salts are not deliquescent (as the sodium salts are). WOW, guess I learned the wrong way? How could
that be? Like saltpeter (KNO3) always has seemed by far more valuable than NaNO3 (Chile Saltpeter) to me. Please someone, I'm pretty sure I am
correct here...can anyone jump to my defense?
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woelen
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It all depends on intended use. If you want a nitrate as an oxidizer in fireworks, then it is important to have a non-hygroscopic salt. Potassium
nitrate is good for that. If you want some reaction with nitrate in aqueous solution at high concentration, then you want a highly soluble salt. For
this purpose, sodium nitrate is more suitable.
The difference is much more pronounced with sodium perchlorate and potassium perchlorate. Sodium perchlorate is highly soluble, but also extremely
hygroscopic (it even is deliquescent). Potassium perchlorate on the other hand is a perfectly dry non-hygroscopic solid, but it also is hardly soluble
in cold water. So, making other perchlorate salts from potassium perchlorate hardly is possible.
In general one can state that potassium salts are somewhat more expensive (potassium is more valuable than sodium), but this only is true when the
counterion is not very special and preparation of both the sodium and potassium salt has comparable complexity. For sodium nitrate and potassium
nitrate this is the case. However, for potassium perchlorate and sodium perchlorate this is quite different. It is hard to obtain sodium perchlorate
at high purity due to its high solubility and bad crystallizing properties, while it is very easy to purify potassium perchlorate. Hence, pure
potassium perchlorate is less expensive than pure sodium perchlorate.
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unionised
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Not strictly an order but I did get our purchasing people to find a supplier
Nonanitro
m terphenyl.
An odd compound with a pretty structure- looks like three trinitrobenzenes stuck together
Didn't order it; the customer for the analysis changed their mind when they saw the lead-time to import it.
[Edited on 24-5-10 by unionised]
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mr.crow
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Hmmm the whole sodium/potassium thing is pretty interesting. I was helping out with some science demos at the University and all we could find were
sodium salts. It also produces the ugly orange flames instead of lovely purple.
Speaking of which I made some KNO3 out of a cold pack and no-salt, thats sort of a acquisition. I already have lab grade and didn't want to waste it.
Double, double toil and trouble; Fire burn, and caldron bubble
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Magpie
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Yes. Can anyone tell me why soap bars are made using NaOH whereas liquid handsoap is made using KOH?
The single most important condition for a successful synthesis is good mixing - Nicodem
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hissingnoise
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NaOH makes solid soap and KOH makes a more liquid soap but why those bases react differently with the acids used in soap is another question. . .
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unionised
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OK, I realise that my post wasn't strictly an order, but WTF does liquid soap have to do with the topic?
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Magpie
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I don't like tangents either. My bad.
The single most important condition for a successful synthesis is good mixing - Nicodem
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Chainhit222
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I love tangents and normal lines!
http://img241.imageshack.us/img241/8913/glassorder.jpg
I used simplegpt,crowngpt,cashrocketgpt and some other gpt website to pay for it ![:P](./images/smilies/tongue.gif)
and that's a four necked flask from expediglass.com, its hard to see one of the necks. It seems to be of a high quality.
[Edited on 27-5-2010 by Chainhit222]
The practice of storing bottles of milk or beer in laboratory refrigerators is to be strongly condemned encouraged
-Vogels Textbook of Practical Organic Chemistry
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alibabaregis
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Red Phosphorus 500g
Metal Lithium 10g
Metal Calcium 2g
[Edited on 30-5-2010 by alibabaregis]
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JohnWW
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Where did you buy all that red P, Alibabaregis? You should be able to do a large number of interesting organic reactions with it.
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alibabaregis
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In a chemical supply store. Approx. Eur 100,00. In my country red P sale is not forbidden, only controlled by Federal Police. They do not care for
small quantities.
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Skyjumper
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Threw in some potassium hydroxide (500grams)
some more 500ml 30% H2O2
Some Urea
and KNO3.
The lab I work from has about 4 storage cabinets filled with everything imaginable (except what I need...)
Why someone felt the need to order at least 10kg of NaOH is beyond me. (I work and play in a highschool setting (: )
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Sandmeyer
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No need to do either, you can get it at your local petrol station...
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majortom
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Quote: Originally posted by Globey ![](images/xpblue/lastpost.gif) | Quote: Originally posted by Kaifas ![](images/xpblue/lastpost.gif) | Sodium salts dissolves much better than potassium salts so it is reason to use both potassium and sodium. I use oxidizers to do some Copper perclorate
(binds strongly to nitrogen bases) and copper(III) compounds and making different copper complexes . Copper(I)cyanade goes to Gillman reagents.
Copper(II)chloride is starting material to do Glacer couplings. Copper powder goes to Ullman coupling reactions.
Sodium nitrate is exellent for mild nitration systems because of good solubility.
It is difficult to byu chemicals here too. |
Wow, I guess I was taught wrong. I ALWAYS thought the potassium salts were more expensive, and more desirable and more expensive than the sodium
salts. Plus in many instances, the potassium salts are not deliquescent (as the sodium salts are). WOW, guess I learned the wrong way? How could
that be? Like saltpeter (KNO3) always has seemed by far more valuable than NaNO3 (Chile Saltpeter) to me. Please someone, I'm pretty sure I am
correct here...can anyone jump to my defense? |
Sorry, it is what you can get it in, if the industry uses K for some reason I use K becasue it is all I can get. With all this meth craziness going on
I make my own iodine from cheap pottaium iodide off of ebay and some HCL, then you mix it with a bit of H2O2 and out pops your iodine in crystaline
powder.
I buy calcium hypochlorite as it is cheaper than sodium hypochlorite as I can get it from pool suppliers and it has a higher hypochlorite to weight
ratio.
It all depends but sometimes chemicals are produced in K salt form just because that is the way it has always been done in industry.
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mnick12
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My latest order was only one thing, but it is one very cool thing.
250gr of 5-aminotetrazole monohydrate.
And some toluene from the hardware store, but that is not an order.
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mewrox99
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Nothing special.
Just some Barium Nitrate and Potassium Permanganate
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mr.crow
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I found a 3kg container of NaOH at a hardware store. You should move to Canada
Double, double toil and trouble; Fire burn, and caldron bubble
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mewrox99
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Ordered 500g of Sodium Acetate for only $4. Thats cheaper than making it from baking soda and vinegar!
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mnick12
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My last order was:
benzene 500ml
DCM 500ml
KBr 500gr
DMF 250ml
phthalic anhydride 500gr
ammonium hydroxide 30%-500ml
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Magpie
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Quote: Originally posted by mnick12 ![](images/xpblue/lastpost.gif) | My last order was:
benzene 500ml
DCM 500ml
KBr 500gr
DMF 250ml
phthalic anhydride 500gr
ammonium hydroxide 30%-500ml |
When you receive your phthalic anhydride please determine its melting point. I've received this from two different suppliers getting phthalic acid
instead.
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