The video features an experiment to extract gold from face creams. The host starts by discussing the historical use of gold in various products, including cosmetics, and its supposed medicinal properties. He then presents two face creams, one from Mercadona, a Spanish supermarket chain, which claims to contain 24-carat gold, and another from China.
Using aqua regia, a mixture of hydrochloric and nitric acids, the host attempts to dissolve the gold in the creams. After several hours, he filters the solution and adds sodium metabisulfite to neutralize the acid. He then waits for the mixture to settle and precipitate the gold.
The results show that the Chinese cream contains real gold, while the Mercadona cream does not. The host extracts a small amount of gold from the Chinese cream, which he melts to form a small nugget.
The video concludes with the host discussing the marketing of gold-infused cosmetics and how it may be more of a marketing trick than a genuine benefit for the skin. He also mentions that he could not find any scientific evidence to support the benefits of gold for the skin.
Here are the key facts extracted from the text:
1. The narrator is trying to extract gold from a face cream that claims to contain 24-carat gold.
2. The cream is from Mercadona, a Spanish supermarket chain.
3. The narrator uses a mixture of acids called aqua regia to dissolve the gold.
4. Aqua regia is a mixture of three parts hydrochloric acid and one part nitric acid.
5. The narrator warns that the mixture is very dangerous and should not be tried at home.
6. The cream contains colloidal gold, which is dissolved in distilled water.
7. The narrator buys another cream from China that claims to contain gold.
8. The Chinese cream contains gold leaf that can be seen with the naked eye.
9. The narrator uses the same process to extract the gold from the Chinese cream.
10. The narrator waits for the acid to act for a few hours and then neutralizes it with sodium metabisulfite.
11. The narrator filters the solution to separate the gold from other impurities.
12. The narrator waits for the gold to settle at the bottom of the container.
13. The narrator melts the gold to see if any nugget appears.
14. The narrator's father is a jeweler and helps him to melt the gold.
15. The narrator is not sure what the gold will look like after melting.
16. The narrator shows the final result, which is a small amount of gold.
17. The narrator is not sure about the value of the gold, but thinks it is not worth much.
18. The narrator questions whether gold is beneficial for the skin or if it's just a marketing trick.
19. The narrator found that the Chinese cream contains real gold, unlike the one from Mercadona.
20. The narrator thinks that the amount of gold in the creams is not worth even a few euro cents.
21. The narrator mentions that cosmetics with gold are becoming fashionable.
22. The narrator bought another cream from Lidl that claims to contain gold.
23. The narrator thinks that the concentration of gold in the Lidl cream is ridiculous.
24. The narrator could not find any scientific report that explains the benefits of gold for the skin.
25. The narrator thinks that putting gold in face creams is only for marketing reasons.