Make Gold from Chloroauric Acid

In this video we make gold by reduction of chloroauric acid with sodium metabisulfite.

4 grams of sodium metabisulfite is dissolved in 10mL of water.

About 2mL of water is added to 2.6g chloroauric acid to dissolve it. Now the sodium metabisulfite is added in drop by drop.

The sodium metabisulfite is reacts with the chloroauric acid to produce elemental gold, hydrochloric acid and sodium bisulfate. That brown precipitate you're seeing is actually the gold. It doesn't look like common gold because the particles of gold produced here are so small and rough that they don't reflect light in the way smooth bulk gold does. Just like how very fine sand is dull but glass is clear and shiny.

The gold dust is filtered and washed with water and then melted down into gold nuggets.

[venaautos]

I'm here becauae NileRed decided to drop his beaker of dissolved gold.

[RonJohn]

It's *so depressing* that (1) you have to crush people's expectations, (2) they don't pay attention, and (3) still want to know where you got the chlorauric acid.

[ThePeterDislikeShow]

I used to believe gold nuggets formed when lightning strikes seawater containing a high level of gold ions, electrolyzing it out.

[stepb]

I really like these videos. I like that you put the chemical reactions that take place on the screen so I can see what is happening. It has been a few years since I had chemistry and I have an idea what is happening but seeing the written reaction really helps to understand. Science is just so cool; we can do/learn many things with science!!!

[pierre]

Dear Nerd Rage Sir., thanks for a clear and easy to understand explanatory video on gold reduction.
. I have subscribed - pierre from New Mexico

[SteveValanch]

i love your channel man, keep it up. You're one of the few youtube channels that manages to make an interesting video every time.

[ciwt]

All that liquid turns into something I didn't expect, not that I didn't expect gold, but gold so small. I was thinking of much more, This channel amazes me with every video, great work.

[nebdasthebarbarian]

You're awesome because you show what chemicals you used. This allowed me to do really well on my final chemistry project as a I modified the potassium chlorate and gummy bear reaction into a rocket engine :)

[焰華爾]

I am in Form 4 and I an interested in Chemistry. Thank you for your sharing and I am happy to know a long chemical equation.

[Chemi]

Can Sodium bisulfite be synthesized this way?
2 SO2 + Na2CO3 + H2O = 2 NaHSO3 + CO2
(Bubbling sulfur dioxide through Sodium carbonate solution)

[Just-A-Fool]

I wonder how many people clicked away after 0:47.... Great video btw Subscribed!

[NurdRage]

As said in the video, it is chemically impossible to turn lead into gold. The only known processes are nuclear, not chemical.

[toppolthecat]

I just came across this channel with the gum dissolving this and it is AWESOME

[zhanweii]

Is there a "loss" of the gold by performing the reaction shown in this video?
If so, is the loss is greater by heat refining or chemical extraction?

[GK-qmdx]

How much gold was recovered after adding sodium metabi.. ? 1.5 g or less?

[Doodle_Prints]

I like it when you crush expectations~

[punjabanjatti]

I have approximately 17 gms LR grade gold chloride. What else i need to convert it into elemental gold at home? Please do

[TERRMINE]

You would need Philosopher stone to make gold from nothing XD

[marshymarshington]

at 3:06, was that youtube's playlist layout back then?

[fluffydoesgaming]

Holy crap it really works now I'm super rich