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au out of sea water
1 atm = 103 KPa
10 m head of sea water is equivalent to
9.81 *10 * about 1020 = 100.0 KPa
At th ... |
12-2-2006 at 11:03
by: unionised |
Picric acid to 2,4-Dinitrophenol
IIRC dinitro chlorobenzene is one of the more potent sensitisers- not very nice to work with.
OTOH ... |
8-2-2006 at 12:08
by: unionised |
au out of sea water
"Surely when the water reaches the top and starts to descend the other side, the pump will experienc ... |
8-2-2006 at 12:04
by: unionised |
calculating Solubility
This discussion is all very well, but it fails to address the original question which was about orga ... |
7-2-2006 at 13:52
by: unionised |
Vacuum Distillation
That nomograph is very useful, but it lacks precision (ie it gives the wrong answers sometimes). It ... |
7-2-2006 at 12:56
by: unionised |
au out of sea water
Imagine you get 2 pipes, one in and one out. Both dipping in the sea and reaching 10 M up to your pl ... |
7-2-2006 at 12:47
by: unionised |
Variable Valences
I'm pretty sure that the Fe(III) / Fe(II) isotopes would scramble. There are tables containing the e ... |
6-2-2006 at 13:09
by: unionised |
au out of sea water
"But when you are done with the water and pump it back into the sea, you can use a large percentage ... |
6-2-2006 at 12:49
by: unionised |
au out of sea water
Gold is something like $550 per ounce.
That's about $17 per gram.
Each cubic metre of seawater con ... |
5-2-2006 at 02:46
by: unionised |
PRIORITY OF SUBSTANCES
If it is just a mixture then it can not matter.
PLEASE DON'T SHOUT AT US. |
2-2-2006 at 15:45
by: unionised |
18M H2SO4 to 5%
"Can ANYONE even give me a *reasonable* answer as to why solubility products are in what units they ... |
1-2-2006 at 13:59
by: unionised |
Hows this for a Fume Hood?
"You can peer at your experiments through the window and monkey around inside with the rubber gloves ... |
1-2-2006 at 13:55
by: unionised |
I need $20 worth of Gallium!
You can get gallium on ebay (UK) for about a Euro a gram- shipping from Germany may not be cheap (I ... |
1-2-2006 at 13:46
by: unionised |
Dust Contamination
"Therefore we are getting quotes for a continued personal sampling test, where the test kit is situa ... |
1-2-2006 at 13:34
by: unionised |
Dust Contamination
At the risk of being frighteningly dull for anyone else reading this. Do you know whether the substa ... |
31-1-2006 at 12:27
by: unionised |
Dust Contamination
The easy answer is to send you to this site.
http://www.hse.gov.uk/coshh/calcmethods.pdf
However ... |
30-1-2006 at 11:32
by: unionised |
How do I calibrate a pH metre
The water will pick up CO2 from the air and have a pH of about 5, unless it disolves some of the sil ... |
30-1-2006 at 11:22
by: unionised |
synthesis of 1-cyanocyclohexene
Presumably from cyclohexanone; because that's what he said.
My first thought would be dehydration o ... |
29-1-2006 at 07:10
by: unionised |
Why DMF is controlled?
"O=COOH "
Pardon? |
29-1-2006 at 07:06
by: unionised |
1,5-diphenylcarbazide
Vogel's "qualitative inorganic analysis" just says a solution in alcohol- presumably ethanol. I gues ... |
29-1-2006 at 06:59
by: unionised |
Dust Contamination
Yes, but answering that question needs more information. How long is the shift? |
29-1-2006 at 06:54
by: unionised |
Preparation of ionic nitrites
I saw a reference today to spongy cadmium as a reductant for NO3- to NO2-
http://www.hc-sc.gc.ca/fn ... |
26-1-2006 at 10:26
by: unionised |
Hydrogen reducing copper ions
Copper is capable of reducing sulphuric acid.
Hydrogen is a better reducing agent than copper.
Hyd ... |
25-1-2006 at 10:53
by: unionised |
Another Mercury Ion question
Here's a picture (albeit, not very clear and with lead rather than mercury)
http://genchem.chem.wis ... |
22-1-2006 at 01:00
by: unionised |
Another Mercury Ion question
IIRC Dithizone goes red with mercury. Unfortunately, zinc, lead and some other metals also make it g ... |
21-1-2006 at 07:49
by: unionised |
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