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Kontes Ultra-Ware Vacuum Hose Barb Piece DESTROYED
The good news is that you can buy them
http://www.millipore.com/catalogue/module/C170#Replacement_P ... |
11-12-2012 at 13:37
by: unionised |
Silver salts to elemental silver?
If you mix any silver salt with an excess of sodium hydroxide then heat it till it melts the silver ... |
10-12-2012 at 13:41
by: unionised |
Accidentaly made some H2S in the school lab
[rquote=268293&tid=22657&author=kristofvagyok][rquote=268290&tid=22657&author=Fennel ... |
10-12-2012 at 13:37
by: unionised |
The most funny mistake I ever saw
[rquote=268111&tid=22645&author=Magpie]Biggest problem is that it does not have a vent. You ... |
9-12-2012 at 02:18
by: unionised |
Cleaning volatile solvents
Most heavy metal impurities are solids. If you evaporate some of the solvent down on a clean class w ... |
8-12-2012 at 06:22
by: unionised |
Hygroscopy vs. purity
Yes.
It's possible for a pair of non reacting, non hygroscopic salts to make a mixture that is hygr ... |
29-11-2012 at 12:51
by: unionised |
not dehydration
Just for a start, lead chloride is rather soluble in water (about 1%w/w) and also toxic. |
24-11-2012 at 11:16
by: unionised |
Thorium Nitrate
"Old thorium nitrate crystals are packed with radon-228, radon-224 and radon-220, and if the bottle ... |
20-11-2012 at 13:28
by: unionised |
Brady's reagent
Some DNPH derivatives are rather insoluble and don't form nice crystals when synthesised.
The aroma ... |
13-11-2012 at 14:16
by: unionised |
Vanadium Colloid
It's not clear what you have, but if you dissolve the lot in dilute acid, oxidise it with whatever's ... |
11-11-2012 at 06:59
by: unionised |
Vanadium Colloid
I'm fairly sure that you can dissolve V2O5 in aqueous ammonia to get some sort of ammonium vanadate ... |
11-11-2012 at 05:48
by: unionised |
New Compound
[rquote=264800&tid=22035&author=AndersHoveland]One name of your compound would be
N,N'-dibe ... |
6-11-2012 at 12:43
by: unionised |
Survivalist's Chemistry
"Subjects with a normal functioning thyroid (9 men and 23 women) between the ages of 26 and 56 were
... |
4-11-2012 at 13:47
by: unionised |
Survivalist's Chemistry
You guys do know that iodide is toxic too, don't you? |
4-11-2012 at 10:48
by: unionised |
Storage of pressurized liquid SO2 in plastic containers
Re the original posting and title (and I realise it's a bit late)
http://www.tandfonline.com/doi/ab ... |
4-11-2012 at 05:07
by: unionised |
Survivalist's Chemistry
If, somewhere along the line, you happen to discover fire, then you address quite a lot of those thi ... |
4-11-2012 at 04:22
by: unionised |
NaCl and Potassium Ferrocyanide
Cyanide is toxic because it binds to metal ions that the body uses like copper and iron.
In ferroc ... |
4-11-2012 at 03:47
by: unionised |
Vacuum meter reading problem!
I wonder if the red one measures atmospheric pressure.
What happens if you put the gauge in a sea ... |
3-11-2012 at 11:29
by: unionised |
Have I been exposed to beryllium?
OK, but maybe it's something totally different.
Go and see a doctor and find out. |
30-10-2012 at 11:15
by: unionised |
Possible to make Tartaric acid from Cream of Tartar?
[rquote=263946&tid=21987&author=DJF90]@unionised: I was working off the top of my head witho ... |
30-10-2012 at 11:12
by: unionised |
Possible to make Tartaric acid from Cream of Tartar?
[rquote=263871&tid=21987&author=DJF90]All these suggestions seem horribly convoluted. Dissol ... |
29-10-2012 at 12:46
by: unionised |
Have I been exposed to beryllium?
There are exceptions, but generally, if you have respiratory problems, it's due to something you inh ... |
29-10-2012 at 12:42
by: unionised |
Water flouridation
[rquote=263806&tid=20320&author=ChemistryGhost]
Oh well, live and learn.
It's pretty diff ... |
29-10-2012 at 12:37
by: unionised |
Water flouridation
Thanks for that. It's always good to look at the original data.
Perhaps the most important thing to ... |
28-10-2012 at 13:42
by: unionised |
Water flouridation
" Boron and fluoride bonds to form boron trifluoride. "
Nope.
"Boron trifluoride reacts with water ... |
28-10-2012 at 13:21
by: unionised |
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