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purifying toluene properly
Distill it over CaCl2 to remove water.
I dont know why you used H2SO4 as sulphonation will take pla ... |
14-10-2008 at 01:56
by: Picric-A |
Ammonium Chloride + Sodium Hydrogen Sulphate
Sorry i meant (NH4)2SO4.
He did heat them yes. But the two gasses NH3 and HCl recombine on the sid ... |
11-10-2008 at 09:14
by: Picric-A |
Cathodic protection & Introduction
yep should be fine, nice cell btw!
what is your intended use of all the chlorate/perchlorate you ma ... |
11-10-2008 at 01:48
by: Picric-A |
The short questions thread (1)
I find west condensers are better for reflux whilst liebig's are better for distillations.
When dis ... |
10-10-2008 at 23:19
by: Picric-A |
Ammonium Chloride + Sodium Hydrogen Sulphate
You will probably also get some breakdown of the NH4Cl as well...
After the experiment were the sid ... |
10-10-2008 at 23:17
by: Picric-A |
Permanganates
How long was the mix heated and did you add the NaClO3 seperatly or just chuck all the reagents in a ... |
10-10-2008 at 10:43
by: Picric-A |
Bronze powder in flash composition???
Flash powder is basically where a maetal is oxidised by an oxidising aget and the energy released du ... |
10-10-2008 at 02:16
by: Picric-A |
Common accidents in the lab and how to avoid them
Chief- that is very true but nowerdays thigns like zinc flashing has almost all the arsenic removed ... |
9-10-2008 at 23:15
by: Picric-A |
Safe bromine Preparation
I would of thought NaClO and acetic acid produce Cl2 not HClO.
I would of thought making Br2 form c ... |
9-10-2008 at 23:11
by: Picric-A |
Common accidents in the lab and how to avoid them
No offence but you would have to be retarded to put anything flammable and volatile in an oven :O
u ... |
9-10-2008 at 12:11
by: Picric-A |
Bronze powder in flash composition???
Conc sulphuric does dissolve copper but only when heated whilst Al will dissolve in dil H2SO4 cold. ... |
9-10-2008 at 10:56
by: Picric-A |
Bronze powder in flash composition???
True but you would need a membrane to stop the Cl2 reacting with it. There are loads of threads on t ... |
9-10-2008 at 07:49
by: Picric-A |
Bronze powder in flash composition???
H2SO4 wouldnt work, copper doesnt dissolve in it readily...
Do you have NaOH? if so make a dil NaOH ... |
9-10-2008 at 06:52
by: Picric-A |
Bronze powder in flash composition???
Before you start try dissolving a sample in dil nitric acid. If it goes bluish its bronze if it stay ... |
9-10-2008 at 01:56
by: Picric-A |
Bronze powder in flash composition???
Flash using CaSO4 isnt the easiest to ignite and the products, CaS mainly, release extremly poisonou ... |
8-10-2008 at 09:36
by: Picric-A |
300 deg/C oil bath
Fair point! your lungs are mucked up anyway! a little parrafin wont change much!  |
8-10-2008 at 04:39
by: Picric-A |
300 deg/C oil bath
Like watson.fawkes said, i made my own mantle by attaching a kettle heating element to the bottom of ... |
8-10-2008 at 02:16
by: Picric-A |
The short questions thread (1)
Random question but here we go!
You know when you dissove NO2 in nitric acid it goes bluish green.. ... |
7-10-2008 at 11:44
by: Picric-A |
today have done an experiment with White P
By a simple smell i doubt it is amazingly dangerous but still not good for you. To be on the safe si ... |
7-10-2008 at 11:17
by: Picric-A |
H2SO4 by the Lead Chamber Process - success
Of course, sorry for that stupid mistake. Too tired last night |
6-10-2008 at 23:09
by: Picric-A |
H2SO4 by the Lead Chamber Process - success
Are you sure the ferrous sulphate can be oxidised that easily?
I would of thought it would take hou ... |
6-10-2008 at 10:25
by: Picric-A |
New lab should be in next week...
Nice new lab! i dont know why you painted it white, makes it stand out alot dont you think?
i agree ... |
2-10-2008 at 13:38
by: Picric-A |
Questions about how to boil under reflux
Yea i can see that... thanks Ozonelabs, i stand corrected  |
2-10-2008 at 11:54
by: Picric-A |
Distillation: retort vs. flask + condenser
cool thanks for that link gsd, i throught for some reason glass would be too expencive for the huge ... |
2-10-2008 at 11:52
by: Picric-A |
Rubber Vacuum Tubing
try hardware shops, my local one sells them.
Try looking on the internet harder, there must be some ... |
2-10-2008 at 11:49
by: Picric-A |
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