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HCl concentation
No. This means that 100g of solution contains 31.45g HCl. Your HCl is very near to 10 mol/l or 36.5g ... |
23-11-2007 at 09:49
by: chromium |
Solid state relays
Solid state relays are very reliable when switching common heating elements. They are problematic if ... |
7-11-2007 at 23:35
by: chromium |
Dust Control?
Why not add just water or if water is too corrosive then some organic solvent like toluene (which ca ... |
16-10-2007 at 08:47
by: chromium |
Secomam spectrophotometer (photos)
Thanks, Drunkguy. I did ask them but they just wrote me to send company details and so on. At least ... |
9-10-2007 at 00:37
by: chromium |
Secomam spectrophotometer (photos)
Close view of buttons and display. This message appears aproximately 10 sec after power-on. |
8-10-2007 at 01:15
by: chromium |
Secomam spectrophotometer (photos)
General view. This message is displayed after power on for aproximately 10 sec. |
8-10-2007 at 01:11
by: chromium |
Secomam spectrophotometer (photos)
I just got Secomam s.250 spectrophotometer. It may even be in working order but i have no idea how d ... |
7-10-2007 at 16:16
by: chromium |
Testing for hydrogen.....
[quote][i]Originally posted by solo[/i]
Took the tank back to the merchant and tested other tanks w ... |
4-10-2007 at 04:23
by: chromium |
Sodium Hydroxide Glass Etching
Alkali metal hydroxides are not good for practical glass etching. Reaction product is nontransparent ... |
4-10-2007 at 03:24
by: chromium |
returning to labwork issues
[quote][i]Originally posted by chemrox[/i]
Maybe I should do a bunch of simple preps before I waste ... |
27-9-2007 at 01:01
by: chromium |
Platinum Wire vs Platinum Plated Wire
Is there any reason why homemade platinum plating can not be used for electrodes? There are recipies ... |
24-9-2007 at 01:21
by: chromium |
Alkenes by thermal decomposition of polymers
AFAIK pyrolysis of polyolefins normally yields long list of various hydrocarbons. I did some experim ... |
22-9-2007 at 05:23
by: chromium |
Kno3.com
Of course it would be good for amateur chemists if ephedrine is controlled instead of RP and iodine ... |
20-9-2007 at 22:54
by: chromium |
Kno3.com
[quote][i]Originally posted by jim20/20[/i]
the policy of the uk authorities to control the precurs ... |
19-9-2007 at 12:34
by: chromium |
Chemistry equipment
Do not expect that pyrex (or any other sort of glassware) will withstand everything. Always try to m ... |
18-9-2007 at 08:55
by: chromium |
Flyback problem
IIRC this circuit is kind of blocking oscillator. Months ago I did some experimenting with it but i ... |
14-9-2007 at 10:36
by: chromium |
The "undesirable" type of chemistry web pages
[quote][i]Originally posted by S.C. Wack[/i]
Now, do any "legitimate" chemistry sites link to here ... |
10-9-2007 at 13:22
by: chromium |
Sulphuric Acid
Be careful not to let it into your eyes in any case (so wear gogles) and if it gets onto skin then w ... |
3-9-2007 at 07:22
by: chromium |
Dyes
KOH will not come over with water vapour but those nasty fumes are probably due of small liquid part ... |
21-8-2007 at 10:44
by: chromium |
Chem Merit Badge - Ideas anyone?
If you want quite impressive and very simple non-pyro experiments then you could play with red cabba ... |
3-8-2007 at 11:36
by: chromium |
Glacial acetic acid...
[quote][i]Originally posted by __________[/i]
I don't remember well where I read this from but you ... |
25-7-2007 at 12:32
by: chromium |
one of our own BUSTED for a firework!
[quote][i]Originally posted by YT2095[/i]
I don`t blame the Police in any of this, how Should they ... |
23-7-2007 at 05:52
by: chromium |
one of our own BUSTED for a firework!
I will not write what i feel here as you all know it but here is one characteristic patten i want to ... |
23-7-2007 at 00:33
by: chromium |
Way to propionic acid?
Polymethyl methacrylate is very common plastic. By heating it is said to depolymerize to methyl meth ... |
22-7-2007 at 15:25
by: chromium |
Glacial acetic acid...
As far as i know there is no azeotrope with acetic acid and water, just evaporation rates are almost ... |
22-7-2007 at 14:43
by: chromium |
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