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Perchloric acid preparation
HClO4 formes a aezotrope with water at 71 %, BP = 203 C.
Conentrated (> 90 %) can not be heated t ... |
2-10-2002 at 08:01
by: rikkitikkitavi |
FYI: Nitric acid resistant material
I was cleaning out some old chemicals at my parents house. To my great surprise and joy I found a 5 ... |
28-9-2002 at 05:43
by: rikkitikkitavi |
Hopelessly gunked up reaction vessels
/me sorry.
I meant Polverone.
Damn this non-edit-function. Now everyone can see that I am such ... |
25-9-2002 at 11:11
by: rikkitikkitavi |
Hopelessly gunked up reaction vessels
CS2 is made by leading S-vapour over charcoal (or similar porous carbanceous material) at 800 C.
... |
25-9-2002 at 11:09
by: rikkitikkitavi |
Acetic anhydride preparation
when making chlorates i can only recomend wouters webpage. i dont have the link here but it is the b ... |
24-9-2002 at 10:58
by: rikkitikkitavi |
Extracting Sodium from Sodium Chlorate
since hydrogen has a very high overvoltage at a mercury cathode, sodium metall is formed instead of ... |
22-9-2002 at 13:27
by: rikkitikkitavi |
Ammonium Sulfate --> Ammonium Hydrogensulfate
as a second advocate for this reaction
(hoffman larouche is the other)
i recommend you to look a f ... |
20-9-2002 at 09:22
by: rikkitikkitavi |
Perchloric acid preparation
still, ClO2 is the most widely used bleaching chemical in the pulp and paperindustry. In sweden alon ... |
19-9-2002 at 22:05
by: rikkitikkitavi |
Haloform reaction
I forgot;
adding a strong acid to a hypohalite solution immediately produces halide
/rickard |
18-9-2002 at 10:56
by: rikkitikkitavi |
Haloform reaction
I believe that it is the hypohalite ion that performs the nucleofilic attac. A hypohalide acid is no ... |
18-9-2002 at 10:55
by: rikkitikkitavi |
Diphoronepentaperoxide (DPPP)
my chemical dictionary states that phorone is formed when acetone saturated with HCl is left standin ... |
17-9-2002 at 09:38
by: rikkitikkitavi |
Cheap H+ from ammoniumsulfate-fertilizer
edit ! edit! edit!
FYI:
NaHSO4 reacts funny in alcohol:
Na2SO4 has a very low solubility, ... |
12-9-2002 at 11:41
by: rikkitikkitavi |
Cheap H+ from ammoniumsulfate-fertilizer
exactly the same conclusion I came to for a few months ago, while searching for a method of making H ... |
12-9-2002 at 11:35
by: rikkitikkitavi |
Cheap H+ from ammoniumsulfate-fertilizer
melting NH4HSO4 + Na2SO4 to produce sulfuric acid.
NH4HSO4 + Na2SO4 => NH3 + NaHSO4
(at 300 C)
... |
11-9-2002 at 20:25
by: rikkitikkitavi |
Cheap H+ from ammoniumsulfate-fertilizer
i think it can be a useful complement.
HSO4- is NOT a strong acid in aqeous solution. 1 M solutio ... |
11-9-2002 at 08:27
by: rikkitikkitavi |
Preparation of ionic nitrites
dissolving NO2 in H2O gives
HNO3 + HNO2, the latter dedcomposing and the former being completely i ... |
3-9-2002 at 11:40
by: rikkitikkitavi |
Metal nitrates - the easy way
One possible explanation:
NH4+ is a stronger acid than H2CO3
Thus
2NH4+ + CO3-- => CO2+ ... |
25-8-2002 at 01:15
by: rikkitikkitavi |
NO2 preparation
heat Ca(NO3)2 to about 600 C
Ca(NO3)2 => CaO + 2NO2 + 1/2 O2
NO2=> NO + 1/2 O2 at the temperatur ... |
22-8-2002 at 12:28
by: rikkitikkitavi |
Zinc chloride
why do you need anhydrous ZnCl2?
The HCl used is about 65 % water, so any anhydrous salt is going ... |
17-8-2002 at 23:15
by: rikkitikkitavi |
Ammonium permanganate preparation
hmm
KMnO4(aq)+NH4ClO4 (aq)=>
KClO4 (s) + NH4MnO4 (aq)
it relies on the fact that KClO4 is l ... |
17-8-2002 at 12:02
by: rikkitikkitavi |
Anhydrous ammonia preparation
classical method of making NH3
2NH4Cl + Ca(OH)2 = > CaCl2 + 2 NH3
when gently heated in a flas ... |
17-6-2002 at 12:48
by: rikkitikkitavi |
