| Pages:
1
..
10
11
12
13
14 |
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
Watch nurdrage's videos on manganese sulfate purification. I have tried some of the same techniques with manganese chloride but that seems to be more
difficult.
As always, ferrocyanide and ferricyanide will test for iron (III) and (II) respectively. You could do something with a colormetric test to get
quantitative. In the absence of a detector, you could get a ballpark figure by mixing a solution for comparing with. TheHomeScientist on YT has a
technique using a spotting tray that works well. Search for boron on his channel.
But really, if the iron is not colouring too much, then it is likely low. Therefore not going to affect things much.
|
|
|
Upsilon
Hazard to Others
Posts: 392
Registered: 6-10-2013
Member Is Offline
Mood: No Mood
|
|
Yeah the color really isn't bad at all, I'll upload a picture tomorrow.
Right now I'm wondering about how to get a scandium sample. I really should just buy it, but I can also get scandium oxide for not a whole lot more
expensive than regular scandium metal. Still though, it is risky - 2.5g is $40, and that is not nearly enough to experiment with so I would have to
use it up all at once. And if it fails, that's $40 down the drain.
|
|
|
MrHomeScientist
International Hazard
Posts: 1806
Registered: 24-10-2010
Location: Flerovium
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by Upsilon  | | Right now I'm wondering about how to get a scandium sample. I really should just buy it, but I can also get scandium oxide for not a whole lot more
expensive than regular scandium metal. Still though, it is risky - 2.5g is $40, and that is not nearly enough to experiment with so I would have to
use it up all at once. And if it fails, that's $40 down the drain. |
I've done a bit of reading on separating rare earth metals from monazite ore, and I get the sense that reducing the compounds to the pure metals is
not a simple task. Probably requires inert atmosphere at least. You may be better off buying it. However you get the metal, be sure to store it under
oil or inert gas - my sample has developed a thick white coating of oxide over a few years of storage in a little Ziploc bag. 
| Quote: Originally posted by Upsilon | | Good luck with the SiO2 thermite Agari, I couldn't get anything worth saving from it. The metal(loid) always failed to coalesce effectively. I got
blobs of it but they were actually just tiny grit-like pieces clumped together, and they weathered very quickly. |
Again, my experience differs. I made some reasonable sized pieces of silicon from sand thermite. My second attempt is on my channel, which resulted in somewhat less pretty grain-of-rice-sized shards. Still, entirely possible to obtain display-worthy samples from
thermite.
That's awesome! I'm glad to hear my work is being used in the classroom. I haven't done anything on YouTube in a long time; seems like I should get
back to it.
|
|
|
kemster90
Harmless
Posts: 8
Registered: 6-1-2016
Member Is Offline
Mood: No Mood
|
|
extracting elements from everyday sources
for note i dont own any of these videos
hydrogen
source:from HCl acid
https://www.youtube.com/watch?v=F693cIjEjLo
lithium
source:energizer battery
https://www.youtube.com/watch?v=BliWUHSOalU
sodium
source:solid lye drain cleaner
https://www.youtube.com/watch?v=rL1cKb3_ojE
potassium
source:KCl
no video
magnesium
source:magnesium firestarter
calcium
source:calcium chloride
electrolysis under argon environment
no video
titanium
source: titanium pigment
https://www.youtube.com/watch?v=6IpMkPY7TNQ
manganese
source:non rechargeable battery
https://www.youtube.com/watch?v=VYBNmV6jA90
iron
source:steel wool
cobalt
source:NiMH rechargeable battery
https://www.youtube.com/watch?v=ft-zjHP7tWg
nickel
source: nickel US coin or rechargeable batterty
copper
source: copper pipe or react aluminum with copper sulfate
zinc
source:
https://www.youtube.com/watch?v=DtZ_vwXy2vg
Boron
source:Boric acid roach killer
https://www.youtube.com/watch?v=0QBCyOrjR2o
Carbon
source:non rechargeable battery
https://www.youtube.com/watch?v=I9O8s_pqsF8
Nitrogen
source:
Oxygen
source: peroxide
aluminum
source:aluminum foil
https://www.youtube.com/watch?v=phMgqT6EsYc
silicon
source:sand
chlorine
source: HCl
Bromine
source: bromation
iodine
source:
bismuth
source:pepmo bismo
https://www.youtube.com/watch?v=Hp1fYtYEfoQ
tungsten
source:welding rod
Sulfur
source: matches
Phosphorus
source: matches
silver
source: silver solder
cerium
source:ferrocerium rod from a lighter
neodymium
source:neodymium magnets
thorium
source:tungsten tig welding rod
americium
source:smoke detector
helium
source:helium tank
argon
source: welding supply for mig welding
hope to add
https://en.wikipedia.org/wiki/Solder
to extract metals from here
[Edited on 28-1-2016 by kemster90]
|
|
|
Texium
|
Threads Merged
27-1-2016 at 16:53 |
symboom
International Hazard
Posts: 1143
Registered: 11-11-2010
Location: Wrongplanet
Member Is Offline
Mood: Doing science while it is still legal since 2010
|
|
making phosphorus
https://m.youtube.com/watch?v=mibM4WUx74Q
|
|
|
Herr Haber
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
Last year I was going out with a girl who's father is one of the top 2 chemists in his specialty (Chirality) in our country.
Since she had asked him some advice (she's herself on her way to a PHD in Physics) about books for my Xmas present he was a bit worried as the books
they settled on where
1) One on explosives and propellants (very boring after reading Urbansky
2 The other one was about crystals, the naming, what could catalyse crystallization. I learned a lot there.
Of course, since his daughter was spending a lot of time at my place he had some concerns about my "lab" even though his daugher explained to him how
paranoid I was with cleaning before, after, myself, using solvents to remove any trace from contaminents on glassware.
Seeing where the interrogation was going (and quite expecting it!) I "reassured" him by promising I would never try to collect any element beyond 94
and didnt plan to add chlorine trifluoride to my inventory either.
He paused for a second and laughed. Too bad I'm not with his daughter anymore. He would have been a great father in law. 
I did spoil the mood though a little afterwards when I mentioned I planed to distill some SO3 from a persulfate (details in the Library)...
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Elements collection
Hello,
I want to make my own collection of elements, but buying complete ptable from internet is NOT my goal.
I want to collect elements mainly from easily affordable sources (for example tungsten from lightbulb etc.)
Buying some of them would be the last option.
Could anyone help me to expand my collection by advising sources?
Thanks a lot.
I already have:
Hydrogen
Oxygen
Nitrogen
Sulfur
Iron
Copper
Tungsten
Tin
Bismuth
Antimony
Zinc
Magnesium
Lead
Mercury
Gold
Silver
Nickel
Fluorine (as CaF2)
Aluminium
Carbon
(Sorry that they aren't in order).
|
|
|
szuko03
Hazard to Others
Posts: 188
Registered: 3-4-2015
Location: USA
Member Is Offline
Mood: No Mood
|
|
A few days ago I opened a Lithium battery to remove the elemental lithium sheet contained with in. I can also attest to the fact without storage
available the instant you liberate it from the steel housing the shiny luster of lithium will quickly be a memory for you.
I am also working on Red Phosphorus from match book strikers in an effort to obtain some elemental P for my collection as well. Those are too not too
hard or expensive projects for you, the warning being they take time so be sure to set aside time for the work.
Also you can always try to get the iodine out of povidone iodine, using some common chemicals and thats really just mixing, filtering and subliming
the iodine... I havent actually completed one though.
[Edited on 5-2-2016 by szuko03]
Chemistry is a natural drive, not an interest.
|
|
|
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
There are already a number of threads on element collecting. Lots of us do it.
Seems like you have a good start. Some (many) can't eaily be isolated by home chemist.
I recommend boron as a good project. Look up the youtube by mrhomescientist.
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Thanks for answers.
Do anyone knows whch halogen is used in osram 64210 headlights bulb or in some other atomotive halogen lightbulbs?
|
|
|
Texium
|
Threads Merged
5-2-2016 at 15:16 |
IrC
International Hazard
Posts: 2710
Registered: 7-3-2005
Location: Eureka
Member Is Offline
Mood: Discovering
|
|
| Quote: Originally posted by crystal grower | Thanks for answers.
Do anyone knows whch halogen is used in osram 64210 headlights bulb or in some other atomotive halogen lightbulbs? |
https://en.wikipedia.org/wiki/Halogen_lamp
Odds are your answer is covered under 'Halogen cycle'.
"Science is the belief in the ignorance of the experts" Richard Feynman
|
|
|
E-Hunter
Harmless
Posts: 5
Registered: 5-2-2016
Member Is Offline
Mood: No Mood
|
|
I need help with an element...
I am an element collector,as you can probably tell from my name. I currently seek to collect Arsenic as part of my collection. I currently have 14
elements in my collection,they are:
Lithium (From Batteries)
Hydrogen (From lithium and water reaction)
Helium (From balloon,most likely very impure)
Carbon (From Batteries)
Oxygen (From bleach and hydrogen peroxide)
Sulfur (Bought,I would like a method of extracting it from a sulfur-containing compound though)
Sodium and potassium (Would also like a method of extraction from a sodium/potassium compound).
Chlorine (From pool acid and hydrochloric acid)
Bromine (From sodium bromide)
Iron (from a few grams grams of thermite)
Zinc (Bought)
Tin (Bought)
Aluminum (Bought)
I would like to know practical methods of extracting the elements that I listed as "Bought" from compounds containing those elements. Back to my
original question: How would one extract Arsenic from Orpiment (Bought online)?
https://en.wikipedia.org/wiki/Orpiment
So far,I have only been able to come up with essentially placing the orpiment in a metal container and lighting gasoline under it,but have little idea
as to what to do after isolating the Arsenic Trioxide. Arsenic is probably the most dangerous element I will try to collect. Speaking of danger,what
would be a good way to deal with the Arsenic Trioxide once it has been isolated from Orpiment? What about isolating the other bought elements that I
mentioned from compounds containing them?
Thanks!
[Edited on 6-2-2016 by E-Hunter]
|
|
|
Texium
|
Threads Merged
5-2-2016 at 21:51 |
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
I would suggest that arsenic is off limits for amateur extraction until you have a really good understanding of what you are doing, all the relevant
chemistry and have some good lab skills (including waste disposal procedures.) Until then, buy a sample. Preferaby ampouled. If you must persist
with this idea, search everything you can on arsenic and orpiment on these board and read every word before doing anything. The topic has come up
before. As compounds have a history of killing people and are not to be trifled with.
Sodium and potassium are good projects. There is a lengthy thread on reduction of potassium hydroxide using magnesium and a tertiary alcohol
catalyst. Worth a read. Very doable by the amateur but also a challenge. An easier method is a thermite-style reaction using magnesium powder.
Losses will be high, but it is quick and simple. Search on youtube for an example. Sodium is also obtainable by the same route. Better production
of Na can be done by electrolysis of a molten salt. Again, read threads on the subject.
Aluminium -- just buy it. Extraction from an oxide is just not worth the effort.
Zinc can be extracted from a carbon zinc battery or an alkaline battery.
Sulfur can be obtained by acidifying a thiosulfate solution and filtering. I think you would be better to buy gardening grade sulfur and purify by
recrystallising using xylene (or toluene.)
Silicon can be got from sand via a thermite reaction. Titanium can be gotten also from pottery grade TiO2. Neither of these are exactly
straightforward but they are a good challenge. They are not on your list but I think are candidates for what you say you are attempting to do.
You don't mention copper. I get mine from stripping electrical wires. If you want to extract it however you could perform electrolysis on copper
sulfate. The spin-off of sulfuric acid might also be useful.
Electrolysis of solutions will also give you chromium, tin, nickel and others.
For other elements, a read of this thread will give you some options.
Good luck. Element collecting is fun!
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Thanks for advices, I've successfully obtained Lithium from battery and molybden, tungsten and some argon from light bulb.
|
|
|
Herr Haber
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by j_sum1 | I would suggest that arsenic is off limits for amateur extraction until you have a really good understanding of what you are doing, all the relevant
chemistry and have some good lab skills (including waste disposal procedures.) Until then, buy a sample. Preferaby ampouled. If you must persist
with this idea, search everything you can on arsenic and orpiment on these board and read every word before doing anything. The topic has come up
before. As compounds have a history of killing people and are not to be trifled with.
|
Arsenic metal is ok if you already have it in metal form. It's commonly used in metallurgy and in the making of Calcium Carbide. This is where I got
my first lump from: I use CaC2 for caving and we always sift through the remains to check for leftovers CaC2 that might be usable. From the little I
remember (and to keep the explanation short) it acts a little bit like the butter you put at the bottom of your mould for making a cake when you want
to get your Calcium Carbide from the mould it has been formed into the arc furnace. (A bit over simplistic, I hope no metallurgy specalist will throw
me hot slag  )
Arsenic salts on the other hand are an enterily other matter. As the user above implies it they have been commonly used to get rid of unwanted
family members.
So I'd be very weary of extracting Arsenic from one of it's salts.
|
|
|
Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
|
|
This page might be useful to those of you interested in collecting elements:
http://www.sciencemadness.org/smwiki/index.php/Topical_Compe...
(it's still a work in progress)
|
|
|
elementcollector1
International Hazard
Posts: 2684
Registered: 28-12-2011
Location: The Known Universe
Member Is Offline
Mood: Molten
|
|
Arsenic is most definitely off-limits until you have more experience. At the very least, you'll need some experience with sublimating
compounds in closed, sealed tubes. Of metal. If you wish to use orpiment, simply powder it (very, very carefully) and mix with something like
excess carbon and sublimate.
Personally, I recommend Skutterudite for As extraction, as it is relatively safe even when powdered.
Zinc can be precipitated from single displacement, or from electrolysis (under the right conditions, because zinc can mildly react with water), etc,
etc.
Tin can be found in solder, and extracted by dissolution with excess HCl, filtering off the insoluble lead chloride (careful), and either subject this
to electrolysis or single displacement (aluminum should work well).
Sulfur can also be obtained via bubbling H2S into bleach. H2S can be made by mixing a sulfide and HCl (careful, this stuff's
toxic too).
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
|
|
|
E-Hunter
Harmless
Posts: 5
Registered: 5-2-2016
Member Is Offline
Mood: No Mood
|
|
Thank you to all of the above posters for your advice, for now,the Orpiment sample which I bought will be my Arsenic sample. I am going to work on
getting Sulfur for now.
|
|
|
woelen
Super Administrator
Posts: 7976
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
Last weekend I have been busy making element samples for permanent display.
I have ampouled the following elements which I had as chemical, but now I set aside part of them as beautiful element sample:
Boron (99.7% crystalline)
Cadmium shot (99.9%)
Indium shot (very shiny, 3N grade)
Violet phosphorus (made this myself: appr. 500 mg made from 25 grams of red P, it looks grey like graphite)
Selenium (corpuscles, 5N grade)
I also ordered a few samples, which I cannot make myself:
- iron 99.995%, electrolytic flakes, under argon
- manganese 99.99%, electrolytic flakes, under argon
- vanadium feather-like crystals, 99.9%, under argon
- samarium 99.99%, oxide-free, in quartz ampoule, vacuum-sealed.
- lithium 99.5%, oxide-free, under argon
- calcium 99.9%, oxide-free, under argon
I now am in the process of getting really beautiful samples of all the elements, free of oxide-layers, shiny and durable in sealed ampoules. At the
moment I have almost 40 elements in the form of ampouled samples or perfectly sealed glass vials.
These ordered samples were quite expensive, between EUR 15 and EUR 20 per sample.
[Edited on 8-2-16 by woelen]
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Congratulations Woelen, great hunt.
Maybe you could send me some Indium just joking but I'd be glad for Indium sample, do you know any cheap source ??
|
|
|
woelen
Super Administrator
Posts: 7976
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
A good source for indium is onyxmet.com. They sell ampouled indium in the form of small shiny spheres, which can nicely be ampouled. My indium is from
them, and I made two ampoules of this (one with appr. 9 grams and one with appr. 1 gram).
-----------------------------------------
I now made a new chlorine sample, which very well demonstrates the color of Cl2. I made appr. 200 ml of gas, dried this with a 1 : 5 mix of P4O10 and
CaCl2 and then dissolved this in appr. 5 ml of reagent grade CCl4. More than half of the Cl2 dissolved in the small amount of CCl4, it is amazing to
see how well Cl2 dissolves in this. The resulting solution is deep yellow and above the solution, there is a faint color of gaseous Cl2. I ampouled
this 5 ml of liquid and now I have a sample of Cl2 with a very strong color.
I also ampouled a solution of a single drop of Br2 in CCl4 (which is a nice deep red/brown solution) and a solution of a small granule of I2 in CCl4
(which has a purple color). Now I have three additional samples of halogens, which are quite unique. I used CCl4, because this does not react with
halogens and can be stored indefinitely, also when displayed in full daylight.
Soon, I will make pictures of all my samples.
Edit: I made another ampoule of iodine, now with iodine, dissolved in (Et)2O. This solution is brown and is archetypal for the appearance of solutions
of iodine in many oxygen-containing solvents. The deep purple color in the other ampoule is archetypal for the color of iodine in aliphatic
hydrocarbons and halogenated aliphatic hydrocarbons. Now my set for the halogens is complete, the elements, and representative solutions in solvents
which can be stored indefinitely.
[Edited on 8-2-16 by woelen]
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Today I have expanded my small collection with red phosphorus from match boxes.
Now I want to make some borium ( from b2o3).
Is there some other way of extraction but thermite reaction?
For example electrolysis or something else....
And second question, how do I recognise what metal is used in various types of spark plugs ??
Thanks for answer.
And by the way , shouldn't be this topic sticky and maybe moved to miscellaneous?
[Edited on 9-2-2016 by crystal grower]
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by crystal grower | Today I have expanded my small collection with red phosphorus from match boxes.
Now I want to make some borium ( from b2o3).
Is there some other way of extraction but thermite reaction?
For example electrolysis or something else....
|
Magnesiothermy reportedly gives better results than aluminothermy but the product will still be quite contaminated (with borides). Brauer (library)
may give a procedure.
Dissolving NdFeB magnets in acid leaves a residue of B but not much, of course.
[Edited on 9-2-2016 by blogfast25]
|
|
|
The Volatile Chemist
International Hazard
Posts: 1981
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline
Mood: Copious
|
|
I always forget about the solder source for tin. I have ~2.5 spools of solder from the now-gone Radio Shack (RIP), and my iron went out a year ago.
I'll
have to get some PbCl2 and tin out of some of it.
I tried to get some lithium out of a lithium-polymer battery the other day. I thought the lithium was in solid form, and went through a whole
collection process, only to find my 'lithium' was aluminum...
|
|
|
crystal grower
Hazard to Others
Posts: 474
Registered: 3-1-2016
Location: Os Petrosum
Member Is Offline
Mood: Puzzled
|
|
Maybe its a stupid idea but would it be possible to make elemental boron by putting Al rod into molten Boron trioxide ?? (It doesnt matter how pure it
will be).
|
|
|
| Pages:
1
..
10
11
12
13
14 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
: