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Polverone
Now celebrating 21 years of madness
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in urea instant cold packs...
The urea is mixed with water released from a burstable pouch, as in the ammonium nitrate packs.
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Cappy
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ammonium nitrate - 34-0-0 fertilzer
potassium nitrate - 13.5-0-46 fertilizer
urea - 46-0-0 fertilizer
There are several other formulations, but these are the main ones that have relatively pure chemicals. It should be noted that sometimes there will be
a polymer coating on the grains to reduce solubility for slower absorption.
Unfortunately, places like Home Depot don't have enough selection to offer the pure formulations, which are less useful to gardeners.
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PHILOU Zrealone
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NH4NO3 --> N2H4O3 --> 28g/N per mole NH4NO3 (80g)
thus 35% by weight!
KNO3 --> 14g N and 39,1g K per mole KNO3 (101,1g)
thus 13,84% N bw and 38,67% K bw!
NH2-CO-NH2 --> N2H4CO --> 28g N per mole (60g)
thus 46,66% N bw!
Thus the reference numbers X Y Z
X = % Nitrogen (N)
Y = % Phosphorus (P)
Z = % Kalium (Potassium) (K)
Those are listed as NPK fertilisers!
AN --> 35 0 0
U --> 46,6 0 0
PN --> 13,8 0 38,6
Urea nitrate (UN), guanidine nitrate (GN), potassium phosphate (PP), ammonium phosphate (AP)
UN --> 34,1 0 0
GN --> 45,6 0 0
MPP --> 0 22,8 28,7
DPP --> 0 17,8 44,9
TPP --> 0 14,6 55,2
MAP --> 12,1 26,9 0
DAP --> 21,2 23,5 0
TAP --> 28,2 20,8 0
Also possible K sulfate, NH4 sulfate, Mg nitrate, Mg sulfate, Ca cyanamide (CaN-CN), Ca nitrate, ....
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
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madscientist
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Trichloroethene is sold as "Carbo Sol," a solvent. Glycolic acid is sold as "Sucanat," an alternative sugar (also, a solution of
it is sold as "sugar cane juice" - purity is not exceptional. Copper
napthenate is sold as Jasco Termin-8 Wood Preservative Green (25% solution).
I weep at the sight of flaming acetic anhydride.
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Organikum
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platinum oxidation catalyst
coated on plastic is found in some contact-lens cleaner set working with H2O2. The replacement parts - catalyst coated, can be got quite cheap at
EBAY or have a look for discount offers.
Works.
At least for cleaning contact lenses.
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I am a fish
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| Quote: | | Trichloroethene is sold as "Carbo Sol," a solvent. Glycolic acid is sold as "Sucanat," an alternative sugar (also, a solution of
it is sold as "sugar cane juice" - purity is not exceptional. Copper
napthenate is sold as Jasco Termin-8 Wood Preservative Green (25% solution). |
Thanks
I've added sucanat and wood preservative. Can you provide any reference for Carbo Sol?
1f `/0u (4|\\| |234d 7|-|15, `/0u |234||`/ |\\|33d 70 937 0u7 /\\/\\0|23.
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Haggis
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I can be a second confirmation on the Carbo-sol. It is indeed trichloroethane. I don't know if you need an internet source, but I can confirm
the contents.
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I am a fish
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The single letter typo strikes again!
Trichloroethane seems far more likely. Madscientist said trichloroethene which of course is not the same thing. Am I right in thinking that it's the 1,1,1 isomer?
1f `/0u (4|\\| |234d 7|-|15, `/0u |234||`/ |\\|33d 70 937 0u7 /\\/\\0|23.
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Cappy
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Plastic Wrap
Chemical Name (Common Name) [Source] {Notes}
Polyethylene (Low Density Polyethylene) [Plastic Cling Wrap] {Contains Proprietary Cling Agents}
Poly Vinylidene Chloride (Saran) [Saran Original Plastic Wrap] {Contains acetyl tributyl citrate (ATBC) plasticizer}
Despite the additives, the purity of the plastic wraps is very high.
[Edited on 5/1/2003 by Cappy]
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madscientist
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"Carbo Sol" is trichloroeth<b>e</b>ne. 
1,1,1,-trichloroeth<b>a</b>ne supposedly is also sold as a solvent, but I have yet to find it (not that I've put a serious effort
into finding it, though).
I weep at the sight of flaming acetic anhydride.
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Organikum
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build your ship or airplane
with the help of
www.fibreglast.com
item #70 styrene
item #69 MEKP, methyl-ethyl-ketone peroxide. with cobalt promotor. Hm.
polystyrene can also be made by thermal decomposition of polystyrol. No reference, sorry.
[Edited on 2-5-2003 by Organikum]
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Cappy
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Tetrafluoroethane
I don't know if this has any use, but the GC Electronics Airjet contains 100% 1, 1, 1, 2-tetrafluoroethane (811-97-2).
It is non flamable, and can be condensed at aerosol can pressures.
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Haggis
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When turned upside down and sprayed, the cans shoot a jet of the tetraflouroethane. This jet evaporates quickly and gets very cold all of a sudden.
I was thinking that this could be used to cool down reactions in a hurry. I would imagine the gas is fairly inert, but I wouldn't spray it
directly into your mixture. A few quick sprays on the bottom of the glassware would be enough to drop it a good amount of degrees. Just spray more
as soon as the first 'frost' dissappears, which is in around 3-5 seconds
[Edited on 15-5-2003 by Haggis]
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Polverone
Now celebrating 21 years of madness
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even better
Find a way to chemically oxidize the tetrafluroethane under reasonable conditions. You should be able to obtain trifluoroacetic acid.
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jimwig
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lead and salts
forgive me if this was already posted but my experience with lead-sulfate batteries might be of use.
If one deconstructs a said battery one finds
sulfuric acid (dilute)
a great quantity of lead/antimony metal
like quantity of lead dioxide.
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BromicAcid
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Im actually looking for some source of nitrobenzene and I'm wondering if anyone has gone before me on this quest. Via internet information I
have found that it comes in furniture polish, pesticides, and I've seen it in gun cleaning solutions, it is a highly mass produced chemical (in
the top 50's) so I'm assuming that there might be a somewhat more pure source for it, or just further information on percent content in some
of the afformentioned things, I'm going to start on my quest in ernest tommorow but any help from this community would be appreciated.
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Polverone
Now celebrating 21 years of madness
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Nitrobenzene may be produced in large quantities, but I doubt you'll find much of it in consumer products due to its high toxicity. As mentioned
elsewhere on this site, if you can't buy benzene it is possible to make it by a Friedel-Crafts alkylation/dealkylation reaction. Combine (nearly)
anhydrous AlI3/AlCl3 and toluene, heat, distill off the benzene as it it's formed.
Wild musing: won't the aluminum halide be dried by refluxing with toluene anyway... so you might be able to start off with not-so-anhydrous
material? I recall that Ullmann says a small quantity of alcohol or water needs to be added over time anyway, as absolutely anhydrous aluminum halides
lose their effect.
The methyl groups will go on to make xylene and mesitylene. The wide BP difference should allow you to get a pretty good benzene separation. This can
be nitrated in the usual way to nitrobenzene.
Apart from volatility, is there a simple test that will distinguish between benzene and its methylated brethren?
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BromicAcid
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To answer your question that somewhat relates to mine a simple test to distinguish between benzene and it's brotherhood of the methyl group is
simple oxidation. Benzene is stable to a wide variety of oxidizing agents (H2SO4/K2Cr2O7 comes to mind) but the methyl groups (and longer carbon
chains) are chewed up and turned to benzoic acid and the like. Although benzoic acid is soluble in benzene and toluene and xylenes if you allow them
to evaporate you should end up with the tell tale flakes of benzoic acid if it contains the methyl groups but if it is pure benzene then there should
be no residue (except maybe residue from oxidizing agents), exp. if it was distilled before hand.
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Organikum
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| Quote: | .... it is possible to make it by a Friedel-Crafts alkylation/dealkylation reaction. Combine (nearly) anhydrous AlI3/AlCl3 and toluene, heat,
distill off the benzene as it it's formed.
.... |
I posted it in the benzene thread already, it seems favorable to use iodine instead of chlorine for the reverse Friedl-Craffts (de)alkylation.
No need for AlCl3 anhydrous this way: Iodine and Al dumped in toluene, distilling benzene out - a big column will be favorable for separation.
Re-alkylation should be a minor problem this way.
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kryss
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(UK) I was looking at the labpak website noticed a few things like diethyl ether / acetaldehye & toluene are prescribed. Thing is KNO3/CLO3 etc
arent.Is this because of their use in drugs processing?
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I am a fish
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| Quote: | Originally posted by kryss
(UK) I was looking at the labpak website noticed a few things like diethyl ether / acetaldehye & toluene are prescribed. Thing is KNO3/CLO3 etc
arent.Is this because of their use in drugs processing? |
Most probably.
The ban is particularly stupid when you consider that Diethyl Ether and Toluene can both be bought from Halfords (as 'Cold Start Spray' and
'Cellulose Thinner' respectively).
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axehandle
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You've listed:
"Lead Pb Lead Shot Gun Supplier Contains 1% antimony"
which is inaccurate. Bullets for handloading can contain anything from 0 to 10% antimony, and they all contain a percentage if tin as well to lower
the alloy's melting temp. and improve the viscosity to allow for easier casting.
A source for (almost) pure lead is any scrapyard that deals with used medical X-ray shielding plate. That's how I've gotten all lead
I've used. One side of the plates are usually covered with paint, which you can remove by melting the plates in portions and
skim the smelly, half-burnt paint off the top with a *swedish->english blackout* one of those kithen things with a handle and a round plate with
holes in it.
Price: Approx. 2,5kg/$ where I got it, and a suitable excuse is "I'm casting toy soldiers".
(Another source, in Sweden, is "Metallvaruhuset". The price is horrendous though, something like $10/kg..., on the other hand it's
99,9% pure.)
My PGP key, Fingerprint 5D96 E09E 365D 1867 2DF5 C2FE 4269 9C19 E079 CD35
\"Verbing nouns weirds the language!\"
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axehandle
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Also a source for pure platinum as well as platinum-rhodium/platinum-palladium alloy, is
any jeweller (one that actually makes jewelry,
not a retail store). If you, like me, ask really really nicely, you should eventually get lucky.
The one that will get my platinum agreed to purchase 2 grams for me when he's making his next bulk noble metal order from "insert big
company that don't sell to individuals here".
My excuse was "catalyst research experiment to improve environmental friendlyness of combustion engines". Cosy, who could refuse? Don't
say "catalyst for sulfuric acid production". =)
My PGP key, Fingerprint 5D96 E09E 365D 1867 2DF5 C2FE 4269 9C19 E079 CD35
\"Verbing nouns weirds the language!\"
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vulture
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Nitrobenzene:
Aniline + H2SO5 ---> nitrobenzene
I know, it seems odd to reverse the industrial process, but if it's the only way you can get it...
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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Geomancer
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Propylene glycol is propan-1,2-diol, not 1,3.
Vulture: Have you found a way to get aniline OTC? I always thought you would have to go through nitrobenzene (or perhaps chlorobenzene or
benzylamide).
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