How to Purify by Recrystallization

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  • čas přidán 4. 12. 2009
  • We show how to purify aluminum nitrate and strontium nitrate by recrystallization. This is important because those two substances must be extremely pure for our upcoming video on making glow in the dark powder.
    First make aluminum nitrate from our previous video: • How to Make Aluminum N...
    Dissolve the dry aluminum nitrate in water and filter off any insoluble materials. We could not filter it off before it dried in the previous video because the particles at that stage are much too small. It needs crystallize once to aggregate into particles large that can be filtered.
    After filtering, dry off the aluminum nitrate. The desiccator bag might be useful here: • How to make a Desiccat...
    After drying, carefully weigh out the crystals. Then take that mass and add in 20% mass of water. So if you have 50g like me, you add 10g of water (or 10mL since density is 1g/mL).
    It won't all dissolve, so carefully heat the mixture until it dissolves. Then cover it and let it cool down. Eventually it'll crystallize out purer crystals.
    After the mixture cools to room temperature, and left for a few hours. The liquid is poured off and discarded, it has the impurities and is not needed.
    The crystals are again weighed and once again they are recrystallized with 20% water.
    Once this is done. Dry the final product. I started with 50g and ended up with 17g. But now it's very pure. Better than 99%
    Strontium nitrate also needs to be purified. But it's solubility doesn't change that much with temperature so we'll have to purify by slow evaporation recrystallization rather than thermal cycle recrystallization.
    First, make strontium nitrate like our previous video: • Make Strontium Nitrate
    Once again, dissolve it in water and filter it. Then let it crystallize. But before it dries completely, let the liquid reduce to about 20% of it's saturated volume. So I started with a saturated solution of 10mL of strontium nitrate, i then waited until it evaporated down to 2mL of fluid. The crystals are not included in this assessment. Then discard the liquid. Repeat the recrystallization process.
    Once again, use the desiccator bag to obtain extremely dry chemicals.
    We are now ready to produce glow-in-the-dark powder.
  • Věda a technologie

Komentáře • 827

  • @NurdRage
    @NurdRage  Před 3 lety +77

    Why in Einstein's name does this have millions of views? It sucks. Seriously, i'm the guy who made it... and even i'll tell you; it SUCKS.
    If you want something actually COOL, watch me make glow sticks: czcams.com/video/tItOOpyJP5k/video.html or sodium metal: czcams.com/video/BsNoiFj3wlw/video.html or even a nuclear battery: czcams.com/video/KKdzhPiOqqg/video.html
    Anything! But not this video.

    • @EveryMistakeYouCanMake
      @EveryMistakeYouCanMake Před 3 lety +4

      Hey boss, do you know how to recrystallize menthol crystals? I have a video I'm making that about meth, and the crystals I got in the mail today were liquefied. I froze them, it was a cloudy gummy mess. I melted them back and let them sit in a bowl to get to room temp naturally, but it all looks terrible (no crystals, just... I don't know, gross). Really need some help. Please respond as soon as you can. Thank you so much.

    • @jonross377
      @jonross377 Před 3 lety +13

      @@EveryMistakeYouCanMake What does menthol have to do with meth? Just curious. You probably would have gotten a reply if you had left out the meth part...

    • @EveryMistakeYouCanMake
      @EveryMistakeYouCanMake Před 3 lety +7

      @@jonross377 You are probably correct, lol. Looking back, my whole question looks suspicious. Alright, so meth, specifically the version known as "ice" looks very similar to menthol crystals. My channel on CZcams is dedicated to helping parents and children know everything about drugs. No scare tactics, just truth. In the first video I'm making, I need a substitute for meth because I don't want to actually go purchase meth. It's incredibly easy to get, but I don't want to put myself at risk anymore. Even just possession of the drug is a major felony. The script for that first video, for the actual show, is so powerful; the imagery needs to perfectly align with it. Thus, I need something that looks like meth and the menthol crystals that Amazon dropped me off yesterday, melted :(

    • @jonross377
      @jonross377 Před 3 lety +11

      @@EveryMistakeYouCanMake I just looked up meth crystals and menthol crystals and dang, they look EXACTLY the same.

    • @EveryMistakeYouCanMake
      @EveryMistakeYouCanMake Před 3 lety +4

      @@jonross377 Yep. The menthol shards are slightly skinnier and longer, but for the most part, that's what looks like. I hope the owner of this channel gets back to me. I need to get this done asap. I have no idea what I'm doing.

  • @98JMA
    @98JMA Před 11 lety +10

    What we have are solubility tables, which tell us the solubility of our compound at different temperatures in different solvents. We look for a solvent where the compound has low solubility at room temperature (or colder) and high solubility at hotter temperatures. This is ideal, as the crystals will come out when the solvent cools from being heated, purifying them. This is the general idea of recrystallization.

  • @baguazhang2
    @baguazhang2 Před 3 lety +4

    Thanks for the help. I'm purifying azides in different solvents and it's working well so far. I just added a bit too much solvent and need to evaporate some off.

  • @milotickz
    @milotickz Před 14 lety

    Of all the scientists on youtube, you NurdRage, are the BEST!!!

  • @CannaPlant
    @CannaPlant Před 13 lety +10

    This is the first explanation of the process of recrystallization that makes 100% sense and answers all my questions. Thank you!

  • @JamesAJ
    @JamesAJ Před 9 lety +121

    Am I the only one who's fascinated by this science here? Everyone else is disliking "cause Breaking Bad"...

    • @mvrdamonxy7942
      @mvrdamonxy7942 Před 6 lety

      ItsmeJamesAJ yea its really something.

    • @deekay6902
      @deekay6902 Před 4 lety +2

      All I'm saying is 2 gases in Liquid form mixed with liquid pseudo and you are home

    • @deekay6902
      @deekay6902 Před 4 lety +1

      It's up to you to find out what gases

    • @StevenSchoolAlchemy
      @StevenSchoolAlchemy Před 4 lety

      This is perfect for me I've been working with copper nitrate and I plan to work with iron nitrate as well.

    • @sammylopez7729
      @sammylopez7729 Před 4 lety

      I like the science behind that

  • @hyperbob101
    @hyperbob101 Před 14 lety +5

    hehe i am following along with everything you do. right now i have lioke 5 glow sticks i made using your steps that i haven't even broken

  • @drahyden
    @drahyden Před 14 lety +9

    Recristalization, great technique. Thanks for positing this vids, you are really making a excellent service of inciting the love for chemistry on people.

  • @gregorteply9034
    @gregorteply9034 Před 2 lety +2

    I love him saying "product" all the time.

  • @MARTELRA1983
    @MARTELRA1983 Před 10 lety +5

    Chemistry is awesome, just like the narrator's voice of this video.

  • @metalhead0jtk
    @metalhead0jtk Před 12 lety +2

    I have some Strontium Nitrate from an old road flare (I suspect it contains some sulfur too) and it doesn't seem to dissolve in water at all, blame the sulfur. How can I purify by crystallization with something that is hydrophobic and heat sensitive? Thank you

  • @spark893
    @spark893 Před rokem

    How do you know what solvents will be suitable for different starting products and weather they will require heat

  • @sulkarnaink7160
    @sulkarnaink7160 Před 3 lety +2

    may I ask for a complete video with the ingredients needed and how to make it

  • @TzerMaan
    @TzerMaan Před 14 lety +1

    Thank you, I shall buy it once it is released.

    • @ADH6
      @ADH6 Před rokem

      Are you still using the same account is unbelievable it has been 13 years since your comment

  • @Barskor1
    @Barskor1 Před 10 lety +1

    You can reclaim lost product it just takes work. you gather all the solution you poured off in the initial purification till you have enough to again filter and recrystallize.
    This is only cost or time effective when you do continuous or repeated operations of the same kind.

  • @jestermelender8082
    @jestermelender8082 Před 5 lety

    Can you do this with silver fulminate i am scared of mixing because it might cause an explosion or murcury fulminate?

  • @Pipewing
    @Pipewing Před 14 lety +9

    You make some great videos. I do wonder why you didn't heat the strontium nitrate just to speed evaporation. Where do you find solubility vs. temperature information? or is it something you just remember from doing so much?

  • @ThomasAndersonbsf
    @ThomasAndersonbsf Před 8 lety +5

    have you done a video on hydro-thermal synthesis? would be interesting but for video it would probably have to have a thick fused quartz chamber walled system to be able to see what is going on, which I am not sure could handle the chemical reaction of water at excessive temps trying to dissolve it like say it does for aluminum oxide for growing sapphire crystals :)

  • @jonnakutichaitanya4519
    @jonnakutichaitanya4519 Před 2 měsíci +1

    Thanks for help

  • @dannynguyen123
    @dannynguyen123 Před 14 lety

    this video is perfect
    also i never seen any youtube video with
    a box video inside

  • @NurdRage
    @NurdRage  Před 11 lety +6

    actually you needed more water. the 1/5 thing only works for aluminum nitrate nonahydrate. for potassium nitrate you need 1/3 its weight in water.

  • @lyndafromcazw2303
    @lyndafromcazw2303 Před 2 lety

    What is it used for or what did you make I'm curious I only caught this one video.

  • @steadfast1984
    @steadfast1984 Před 13 lety +1

    you can also use R/O water as long as the membranes and filters are high end.

  •  Před 6 lety +5

    Is there any place I can find a more specific crystalization procces for lysergic acids?

  • @irxkep3349
    @irxkep3349 Před 9 lety +7

    You can actually save the impure liquid that has been poured off and let it dry. This way you will have some pure and some impure product that can still be used in reactions that can tollerate impuritys

  • @lotmom
    @lotmom Před 8 lety +8

    Is it possible to recrystallize red phosphorous?

  • @chechebro1
    @chechebro1 Před 6 lety +4

    can i do this with mdma?

  • @themainstreamstereo
    @themainstreamstereo Před 12 lety

    when i did this the crystals turned back into the same white cloudy color. Does the Clarity of the crystals relate to their purity?

  • @goldentiger1266
    @goldentiger1266 Před 5 lety +6

    Instantly Subed after the first few sec of this vid!

    • @josipivackovic8372
      @josipivackovic8372 Před 3 lety

      Instantly subed after seeing your comment before ad was finished

  • @methgirl2067
    @methgirl2067 Před 5 lety +5

    Love this channel !

  • @nomitech7197
    @nomitech7197 Před 5 lety

    Hi Nice video Can you explain Me How many chemicals need for made this And how can is possible to get these chemicals. .please explain me

  • @t88boost
    @t88boost Před 8 lety +10

    Just found a presentation for my sons 5th grade science class. Thanks for the video

    • @TheBrunswicksfinest
      @TheBrunswicksfinest Před 6 lety +3

      t88boost they use this with methamphetamines

    • @maggiep9007
      @maggiep9007 Před 5 lety

      We did this in 2nd grade.
      This is how you make rock candy.
      Just put a stick in it and you can grow a giant jagged lollipop.

    • @simonhryhoruk1233
      @simonhryhoruk1233 Před 3 lety

      @@TheBrunswicksfinestIs that where the crystal in crystal meth comes from?

  • @apostle333
    @apostle333 Před 6 lety +2

    I love you’re methods, and I rarely (if ever) disagree) however I’m at a loss as to why deionized water is less efficient? I have a few ideas, but they just seem negligible to me. I’m curious as to what you might have to say.

  • @Bombermanos
    @Bombermanos Před 13 lety

    Will this method work with technical grade KNO3? Thank You.

  • @trainwreck3697
    @trainwreck3697 Před rokem

    How do you know that what crystallizes is actually your product? Is it possible for some impurities to crystallize before your product does?

  • @flashplayerplugin11
    @flashplayerplugin11 Před 11 lety

    What is being used to filter it? That white cone shaped thing

  • @user-by6yc8yl7v
    @user-by6yc8yl7v Před 3 lety +5

    I've done a similar process with acetone,
    Started with 1.5G and ended up with 430MG of pure product.

  • @billytalentrocks345
    @billytalentrocks345 Před 14 lety

    Will this method work for sodiumacetate trihydrate? Well, I maybe have to get rid of the trihydrate thing, making in nonhydrate (correct spelled?), but how do I do that?

  • @Psycotic.
    @Psycotic. Před 12 lety

    question if the contaminants can crystalise out before the chemical you want does cant you pour the solution out then crystalise that?

  • @samdavies677
    @samdavies677 Před 4 lety

    Would this prossess work with cladestine made ketamine hcl

  • @shenallh
    @shenallh Před 6 lety +56

    Being taught by Hulk Hogan about recrystallization..... Priceless lol.

  • @love.88bdhjte
    @love.88bdhjte Před rokem +1

    can it be smoked like crystal?

  • @timheavyable
    @timheavyable Před 11 měsíci

    Richard priors favourite video apparently.

  • @AnyerPablo
    @AnyerPablo Před rokem +2

    i want to ask if i want to make 100kg kclo3 what steps should i do?

    • @user-jf2wr5lv3g
      @user-jf2wr5lv3g Před rokem

      👆👆look up that handle, he ships swiftly, and he got shrooms, Dmt, lsd, mmda, psilocybin, adderall, morphine, edibles, fentanyl, cubensis, meth, gummies, SSRI, chocolate bars, he's got a lot.. 🍄 💊🍄🍫💯🔌

  • @jamesslater529
    @jamesslater529 Před 10 lety +5

    Soap making is my hobby and I want to use ash extracted lye to make soap but I don't want to go through the trouble of cleaning the impurities. Is this method the most cost effective way to get purified potassium hydroxide, from hard wood ashes or am I just better off buying my lye at a store. I'm a cheap skate, that's why I want to know.

    • @Joe-fb4eg
      @Joe-fb4eg Před 5 lety

      James Slater uLtrasonic cleaner and diluted or deionized water

    • @Joe-fb4eg
      @Joe-fb4eg Před 5 lety

      James Slater no soap at all added when cleaning said impurities

    • @Joe-fb4eg
      @Joe-fb4eg Před 5 lety

      James Slater no heat either

  • @fedaikn
    @fedaikn Před 14 lety +1

    there is still liquid coating the crystals, even after the second purifying step. i think that one will not get rid of impurities unless one gets rid of the liquid phase. could you get rid of that by washing the crystals in a filter with some ethanol or isopropanol?

    • @ambition9132
      @ambition9132 Před 2 lety

      Spoken like a true 2weaker. Lol JK jk

  • @NurdRage
    @NurdRage  Před 14 lety +6

    i was already planning a few more combustion videos (including kno3) but i've seen channels taken down because they showed that sort of thing. i guess we'll just have to see.

  • @TheBomb2012
    @TheBomb2012 Před 3 lety +1

    Easy to apply to my application, wonderful, see yall on mars

  • @davidsscope
    @davidsscope Před rokem +1

    "This guys got the knowledge, man. He's... he's the man. Few people have what this guy has. He's like a gold mine."
    Spyder Mike

  • @raphackerable
    @raphackerable Před 14 lety +1

    interesting and informative video

  • @justwired
    @justwired Před 6 lety

    I followed these direction perfectly

  • @rock2b28
    @rock2b28 Před 8 lety +1

    I have a question that really want it to be solved as i cant find its solution.
    Can the slow evaporation recrystallization process be done normally under heating to make it evaporate faster?

    • @ThomasAndersonbsf
      @ThomasAndersonbsf Před 8 lety +1

      +ROCKET&SCIENCE EXPERIMENT he said he cant because the extra energy of the heat causes an effect that effects the solubility stablizing teh amount that will dissolve in differing temps, and my guess is that there is a temp where it will change but that will either be over boiling temp requiring a pressurized vessel or will cause the salt to thermally decompose, or take on atoms from the water. destroying your salt too.

  • @johnapplesmith5558
    @johnapplesmith5558 Před 4 lety

    Can you synthesize crystaline methamphetamine please? Nice vid

  • @Chemateur
    @Chemateur Před 14 lety +2

    How do you prevent supersaturation? When I try purifying solutions by recrystallization, they seem to end up supersaturating and won't come out of solution until I introduce a seed, and it's not as pure when the crystals grow in a matter of seconds. Maybe these are different, I haven't actually made aluminum or strontium nitrate yet, but in general when recrystallizing, how do you keep them from supersaturating?

  • @starshock01
    @starshock01 Před 12 lety +2

    After heating, placing the heated solution in the beaker into a styrofoam or insulating container will yield larger crystals but will take longer to cool.

    • @Hasn-Aml890
      @Hasn-Aml890 Před 2 lety +2

      التعليق،قبل عشر،سنوات،،،الله يعلم ميت عدل😲😳

    • @sozana_7
      @sozana_7 Před 2 lety +1

      @@Hasn-Aml890 أي هسه لكيت كلشي

    • @Hasn-Aml890
      @Hasn-Aml890 Před 2 lety

      @@sozana_7 زين إذا نجحتي،بالتجربه،ذكريني،بحصه،منه،هههههه

  • @reinerdursten8027
    @reinerdursten8027 Před 11 lety +4

    You have to take in the recrystallization basically 20% of the water volume of the substance?
    Or is that depending on the solubility of the substance?

    • @jerinsema6097
      @jerinsema6097 Před 2 lety +1

      Someone answer this shit !

    • @Ori-lp2fm
      @Ori-lp2fm Před 4 měsíci

      Try find something in the littature

  • @moonlight-yp1kx
    @moonlight-yp1kx Před rokem +1

    How is methcathinone made?
    please help

  • @NurdRage
    @NurdRage  Před 14 lety +2

    @fedaikn
    the crystals are pure enough for the synthesis of phosphorescent powder.
    And you do get rid of most of the liquid, and thus of the impurities, when you decant off the liquid.

  • @ChuicyProductions
    @ChuicyProductions Před 12 lety

    Would this work if you are trying to purify capsaicin?

  • @SLIXICK
    @SLIXICK Před 7 lety +1

    Im curious could this method be use to extract Thc from plant matter and then crystallize it.

    • @maggiep9007
      @maggiep9007 Před 5 lety +1

      Most potheads just spray lighter fluid through plant matter, then smoke the crap that gets dissolved and shoved through.
      They call it "butane honey oil" if I recall.

  • @coolliger
    @coolliger Před 14 lety

    Which method should be used to purify sodium nitrate?

  • @brandy1011
    @brandy1011 Před 12 lety

    In that case my *scnr* applies. If it still has (ionic) contaminants, it is not completely deionized. Note that the copper could also get into the water from the used reaction vessels, spatula, piping, etc., not necessarily be in the water in the first place.

    • @user-zt2dm9bj4c
      @user-zt2dm9bj4c Před rokem

      سلام ایا شما طرز تهیه کوکایین در منزل را بلد هستید؟؟

  • @jarheadwithm16
    @jarheadwithm16 Před 13 lety +1

    Can you purify sodium acetate by recrystallization?

  • @marhabarefinishservicepaki8207

    You are good man.

  • @NaturalTreeHugger
    @NaturalTreeHugger Před 2 lety

    Awesome video.thanx

  • @nikola96uf
    @nikola96uf Před 11 lety

    Can i vacum filtrate and dy of vacum instead of dessicator bag?

  • @artea1oo1
    @artea1oo1 Před 14 lety +1

    is it possible to use the recrystallization method on pottasium nitrate and sulfur?

  • @PPRstudio
    @PPRstudio Před 8 lety

    Is it work with RO water?

  • @marox3G
    @marox3G Před 2 lety +3

    Very good video! Could you explain the purification and recrystallization procedure if it is not a problem? I have kclo3 obtained from sodium hypochlorite! Thank you in advance!

    • @eb6090
      @eb6090 Před rokem

      السلام عليكم

  • @Sheynan55
    @Sheynan55 Před 14 lety

    thx! very good video!! keep it up!

  • @AZMALING
    @AZMALING Před 13 lety

    @NurdRage what are you making next?

  • @dalerockzsmith1510
    @dalerockzsmith1510 Před 11 měsíci

    Can you rewash using just water?

  • @MarcusTheReverent
    @MarcusTheReverent Před 12 lety +2

    how do you purify or extract ammonium nitrate from fertilizer?

  • @ssensasi660
    @ssensasi660 Před 5 lety

    what's the material for the boss for methamphetamine

  • @Nerflover10097
    @Nerflover10097 Před 5 lety

    Does it put the lotion on its skin?

  • @johnnyakutagawa72
    @johnnyakutagawa72 Před 6 lety +1

    wow amazing

  • @darkpigion
    @darkpigion Před 12 lety

    Can the purification be made any more efficient than this? It seems like allot of product is wasted.

  • @Khodazmoon
    @Khodazmoon Před 3 lety

    Where are you man?
    I've missed your videos

  • @LassIV
    @LassIV Před 4 lety +1

    ~3:00 it's funny that the first process was added 10ml(20%) and after 6.6ml
    You can see clearly the mass loss

  • @user-iz6kq8dy4i
    @user-iz6kq8dy4i Před 10 měsíci +4

    Bill Nye meets Walter White

  • @feuerwerk1997hansl
    @feuerwerk1997hansl Před 12 lety

    could you please tell me how much water i need for 100 gramms of bariumnitrat....and how can i find out how many water i need.....thanks

  • @nikola96uf
    @nikola96uf Před 12 lety

    @NurdRage What means 90 % purity? For some tecnical chemicals like sulfuric acid are 90 % purity. I have technical grade H2SO4 and i did titration and it was 95 %. how then it is 90 % purity if it contains 95% H2SO4? Other is water.
    Does that inpurity is 10 % of that 5 % that contains water in this case?

  • @elpojolocobeatz
    @elpojolocobeatz Před rokem +2

    What in the Walter White is goin on here?

  • @hanvan1
    @hanvan1 Před 10 měsíci

    Co the cho minh bit từ A..Z nha nguyên liệu mua ở đâu

  • @cobrasniper555
    @cobrasniper555 Před 14 lety

    That would be something I'd like to do after the Army. I'm 18, and plan on going through college afterwards. I'm good with math and chemistry (organic as well). Any suggestions for classes or majors to take special interest in?
    Thanks

  • @Helge129
    @Helge129 Před 12 lety

    @MarcusTheReverent He has another video about doing that.

  • @J14e11s87u
    @J14e11s87u Před 13 lety +1

    Hi thanks a lot; your videos are helping me to finish my thesis actually I´m recovering metallic manganese from spent batteries but I have some questions How long does it take to recistalize MnSO4 ? and How much do I have to boil the solucion up (in percentage)? I´ll be waiting your answer.

    • @jonross377
      @jonross377 Před 3 lety +2

      Are you still waiting?

    • @planeiron241
      @planeiron241 Před 2 lety +1

      @@jonross377 I'm curious I think I will wait too, gotta run to the store hope I don't miss sumthin

    • @DEATH_TO_TYRANTS
      @DEATH_TO_TYRANTS Před 26 dny

      😂​@@planeiron241

  • @blink182chase13
    @blink182chase13 Před 14 lety

    So being tottaly serious, cai i use this to puify lye? cause i got the drano crap and i heard its not bery concerntrated. Please answer..any one.

  • @666ppaaccoo
    @666ppaaccoo Před 11 lety

    Gente, cola na grade! Tô chegando agora, isso que está sendo purificado é Cloreto de potássio ou Salitre? Obrigado companheiros!

  • @dadme1493
    @dadme1493 Před 4 lety +1

    how can i make crystal ice ?

  • @user-tw8hz4sv6n
    @user-tw8hz4sv6n Před rokem

    What is this used for. ?

  • @hadescorp1475
    @hadescorp1475 Před 7 lety

    Is that machine measuring? Boiling, Vibrating or what?

  • @bgembelelit6538
    @bgembelelit6538 Před 5 lety

    If I may know what material is that, sir?
    May I discover the compound, Sir

  • @chunkles4774
    @chunkles4774 Před 13 lety

    @nurdrage what is it can type of sin

  • @FM-jc4zi
    @FM-jc4zi Před 5 lety +1

    Bagaimna saya bisa mengedarkan benda itu

  • @NurdRage
    @NurdRage  Před 14 lety +2

    @mafl25
    yeah, but it's now chock full of impurities. After all, to make one portion purer the impurities have to go somewhere.
    Just save the discarded liquids and dry them. If you can find a use for them that isn't sensitive to impurities then go for it.

  • @streety301
    @streety301 Před 10 lety +2

    "Let them birds take a bath and if they come out Cleannnn"-Future

  • @NurdRage
    @NurdRage  Před 14 lety +8

    @Pipewing
    Generally, the slower the recrystallization is done, the purer it is.
    Sometimes you can come across the solubility tables in the literature, other times you just have to try it yourself. :)

  • @wildfireman13
    @wildfireman13 Před 4 lety +1

    This works for caffeine?

  • @chitobubulubu4052
    @chitobubulubu4052 Před rokem

    Hey MY Name is chito i got a idea but a dont now what is for i just now that is for energy