When a solution of lead nitrate is poored into a solution of Potassium iodide a yellow precipitate of lead iodide is formed. This is golden spangles test. Pb(NO3)2 + KI= Pbl2 + KNO3 The precipitate is Pbl2 (lead iodide) which dissolves at high temperatures and precipitates at lower temperatures . Perhaps we might mention that Ksp is temperature dependent, and that colour comes from transfer of electrons from anion to cation
Chakravarthy Kalyan yeah but your reaction is incorrect: Pb2+ (aq) + 2 I- (aq) -> PbI2 (s) The rest of the ions stay dissolved, so you cannot say that KNO3 has been formed l, as it did not take part in the reaction. Hope you understand now.
I did this exact experiment in college chemistry class today. The crystals actually form pretty quick and when light was shined through it looked stunning.
Very amusing to think that at some point in the past an alchemist accidentally finding this and jumping with joy thinking he finally figured a way to make gold.
It is not 24 karat gold,this experiment "golden rain" where iodide of lead was recrystallized from hot solution by cooling, forming crystals of golden-yellow...So it is just a golden yellow crystals that is all.
we just enjoyed in our lab..but lead iodide soln intense yellow color... another thing is blood also, we can prepared... not real!!! its a iron thiocyanate soln...it really works guyss
I used this reaction frequently at the uni during my 1st and 2nd semester in chemistry. However, at schools in my country it is forbidden for students to work with lead.
Is there any paramagnetic chemicals or chemical compound are there which attracts hydrogen atoms or carbohydrates... please tell me if you have any information..and trick to fail lighting bulb..
Always a lovely experiment to show to young Chemistry students. One of the very few reactions I know of where COLOURED crystals can be obtained from a COLOURLESS mother liquor. Does anyone else know of any others?
Lead(II) nitrate and potassium iodide react forming yellow lead(II) iodide. the lead (II) iodine dissolves not much in water, when heat up the solution, PbI2 dissolved completely, create a colorless solution when cool down, PbI2 crystallized into golden crystals
Does this solution stay like that or will it dissolve after some time. I was thinking of turning it into a snow globe like the ones you see in winter in stores
+Tokis Phoenix It's not the Lead, it is Lead(II) Iodide PbI2 that has that SHINY golden colour. Full reaction: 2KI + Pb(NO3)2 --> 2KNO3 + PbI2 . PbI2 has really low solubility. The point of heating the solution is to dissolve dust PbI2 formed by the above reaction, so that when we cool down the solution, PbI2 will appear as crystals, makes it SHINY, SHINY ...
+mukete mulango Did you follow the entire procedure? If the mixture isn't hot enough to dissolve the lead iodide completely then you get very fine yellow plates instead of larger shiny crystals.
When a solution of lead nitrate is poored into a solution of Potassium iodide a yellow precipitate of lead iodide is formed.
This is golden spangles test.
Pb(NO3)2 + KI= Pbl2 + KNO3
The precipitate is Pbl2 (lead iodide) which dissolves at high temperatures and precipitates at lower temperatures .
Perhaps we might mention that Ksp is temperature dependent, and that colour comes from transfer of electrons from anion to cation
i understand zero sir
Wow,Thanks for the explanation
Yes
Chakravarthy Kalyan yeah but your reaction is incorrect:
Pb2+ (aq) + 2 I- (aq) -> PbI2 (s)
The rest of the ions stay dissolved, so you cannot say that KNO3 has been formed l, as it did not take part in the reaction. Hope you understand now.
I did this exact experiment in college chemistry class today. The crystals actually form pretty quick and when light was shined through it looked stunning.
Hi may I know how much quantity you use exactly
yeah, i did that too for my salt analysis at my Xll days... it was incredible!!! those were great days...
Ss i to done this experiment
I also did this experiment and my teacher wondered why my pants were down.
So kids that is how glitter is made
poisonous glitter
xD now i know
glitter that make you dumber
@@rogueanuerz more like glitter that makes you dead
@@onemorewarcrime lead makr e you dumber so yeah
Very amusing to think that at some point in the past an alchemist accidentally finding this and jumping with joy thinking he finally figured a way to make gold.
Thus the secret to making glitter is revealed.
Alchemy, I tell you! Now who can I convince that lead(II) iodide is gold?
Ppl buy little bottles filled with "gold" at souvenir stores thinking it's real gold and they cost only $2 max😂
All that glitter ain't gold my friend 😂
@@yoloyolo636🎵"And they're buying the Stairway...To Heaven"🎵 😂😂😂
Alchemy, I tell you! Now who can I convince that lead(II) iodide if gold?
Nice job lighting the crystals at the end.
"Some" is not a scientific term for an amount of something :(
Of course it is. It merely means that the quantity does not matter.
Steph S considering it is a replacement reaction i would suggest 1:1 molar quantities.
This reaction does not require specific amounts
I could watch that swirl for hours on end!
Thanks i did this for a school project! The experiment took about 10min to complete
Dwight Schrute Did it work?
Can you tell me how much time it took for cooling
We do this experiment for the determination of salt containing lead as cation
Ersha Mohan, yep, adding KI to PbCl2(prepared by adding dil.HCl to a Pb salt) lol I have my practical exams tomorrow !
now i know where tinkerbell gets her pixie dust
It is not 24 karat gold,this experiment "golden rain" where iodide of lead was recrystallized from hot solution by cooling, forming crystals of golden-yellow...So it is just a golden yellow crystals that is all.
Eleanor Erdogan lol, who expects the transmutation of a dull element like lead into a heavier one like gold here anyway !
Beautiful 😍😍May I know what quantity of the solutions we have to use .
Looking like real gold!😍
It so beautiful. Btw how long it takes to do this exp?
hypnotic reaction, loved this trick
we just enjoyed in our lab..but lead iodide soln intense yellow color...
another thing is blood also, we can prepared... not real!!! its a iron thiocyanate soln...it really works guyss
It's so beautiful....then how do we seperate crystals from liquid?
Eva Adrian by filtering through filter paper and leave it to dry maybe?
I used this reaction frequently at the uni during my 1st and 2nd semester in chemistry. However, at schools in my country it is forbidden for students to work with lead.
is that so in our school we did it as 11th graders only
@@07riya.r In my country German students at school are not allowed to work with lead components. 😉
@@knutritter461 yea i figured im indian btw and here its allowed
lol this is a cool experiment I wish I did it when I was going through my chem courses :(
We do this in salt analysis test...it's the golden spangles test
Is there any paramagnetic chemicals or chemical compound are there which attracts hydrogen atoms or carbohydrates... please tell me if you have any information..and trick to fail lighting bulb..
how long did the lead(II) iodine crystallize? cause of in the video is time-lapsed
HI, could you list the materials needed for this experiment and if possible, could you share the entire procedure?
Thank You
WHAT you doin'
Always a lovely experiment to show to young Chemistry students. One of the very few reactions I know of where COLOURED crystals can be obtained from a COLOURLESS mother liquor. Does anyone else know of any others?
is this how a snowglobe is made?
Where do I get these ingredients idk how
I`t`s a surprising, whatkind of results Chemistry can deliver.
nice one. but what is the science behind it?
Gurudas Vaingankar ikr
Lead(II) nitrate and potassium iodide react forming yellow lead(II) iodide.
the lead (II) iodine dissolves not much in water, when heat up the solution, PbI2 dissolved completely, create a colorless solution
when cool down, PbI2 crystallized into golden crystals
Can you keep this mixture bottled for a while?
Did I just witness Alchemy?
We did this reaction in school chemistry lab. A classic reaction
So cool!! Can I grow the crỷtals larger?
if you leave the solution still and cool very slowly
N
Can you please tell how long it took to dissolve the precipitate
would it always stay like this as long as you don't heat it up?
instead of lead what can we use if it's possible?
i did this exprmt many times in clg and I'm proud of an chemistry student😉😍 love chemistry
in second step ..did we need to heat up the solution ?
can we use normal water filtered maybe for this?
THEY FOUND IT! ITS GOLD. OH GOD 🗻🌋ENDLESS GOLD EQUIPMENT!
How much time does it take to make that golden precipitate ?
Can we use alternate method instead of KI
Does this solution stay like that or will it dissolve after some time. I was thinking of turning it into a snow globe like the ones you see in winter in stores
very beautiful
Gold usually doesn't look like piss without shining a light on it
Pls tell me how much time it would take?? I am planning to do it in my school exhibition
is that what we use for our makeups ?!
Please can you say the procedure with printing
Nitrates are also oxidizers.
how long would it take to crystallize?
من أين احصل على مواد التجربه هل تتوفر في المثاخر الطبيه
So is this like crystalization?
We have performed this experiment last year in science exhibition. Its very nice
Say, where can i get the materials?
From your school lab dude :p
how much time did it took you? pls I need an answer :)
OMG! So beautiful...😍😍
Where did you get the ingredients from !?
Those golden flakes are looking so beautiful😍😍😍😍
how to changed the gold solution mastrius
What use this cristuls next vaatini elaa deniki vaadali
Can you please answer this:
What if regular tap water is used instead of distilled water?...will the reaction take place in the same manner?
How much time is require to the complete exp
Lead(ii)iodide can be use as fake gold??!!!
Can someone tell me how many milliliters of each substance must be mixed to get this effect?
Can we do this in plastic bottle ?
if you froze it would it still be gold??
+Jasmin Fernandes that would be cool
+Jasmin Fernandes Probably, but the sparkles and stuff wouldn't be able to be seen. It'd just be a block of yellowish ice.
Does anyone know a similar looking result but with chemicals that are not this harmful?
should be mentioned ,material are required
How to prepare lead nitrate solution
How to prepare aquous solutionnof iodide
please explain use of this experiment?
Is it safe to touch it?
How come the lead is so golden in colour & appearance?
+Tokis Phoenix It's not the Lead, it is Lead(II) Iodide PbI2 that has that SHINY golden colour.
Full reaction: 2KI + Pb(NO3)2 --> 2KNO3 + PbI2 . PbI2 has really low solubility. The point of heating the solution is to dissolve dust PbI2 formed by the above reaction, so that when we cool down the solution, PbI2 will appear as crystals, makes it SHINY, SHINY ...
+Trian Etymes Makes sense (thank you for the explanation).
Actually the precipitate was green
we already have this experiment in our practicals
Which colour your using
This is safe experiment tell me
I get powder form ppt not metal. please help me
why are all the coolest chemicals so dam poison.
cuz swag
How stunning!
I love this golden rain many times I also do this experiment
Pb right?
What my dreams look like
for what can it be used?
TRIPA ESZTER lava lamp
TRIPA ESZTER disco ball
Beautiful experiment
Is it real gold or just looks like gold?!
It looks like gold since it is a yellow precipitate. A double displacement reaction is taking place here forming a yellow precipitate aka lead iodide
It's really wonderful to do such experiments
Where is the voice,???? 😡😡😡
gavin was here messing with this computer XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
Awesome.......
Keep it up dear.
Seems like you're a great lover of chemistry, am I wrong ?
Probably not. Very cool and exciting experiment 😊😊😉😉😎😎
Amazingly beautiful
why are we adding distilled water
To dilute it.
Đẹp quá, muốn nhỏ lại để được nhảy múa trong dòng xoáy hoàng kim diễm lệ như vậy❤️
Can you tell me a poetry
how many time it takes??
In our 12 th standard pratical we did this
please mine didn't form the golden rain but it was yellow
+mukete mulango Did you follow the entire procedure? If the mixture isn't hot enough to dissolve the lead iodide completely then you get very fine yellow plates instead of larger shiny crystals.
Omg!!!!This is so awesome!!!!