The summary of ‘Making purple gold’

The YouTube video chronicles a journey to create purple gold, an alloy of gold and aluminum. The speaker faces challenges like color discrepancies, oxidation, and hydrogen gas issues during the process. By following a patent's guidance and experimenting with various methods, the creator successfully produces purple gold, molds it into a ring, and overcomes obstacles to achieve a satisfactory result. The video concludes with the creator expressing gratitude to supporters and highlighting the importance of perseverance and continuous improvement in the project.

00:00:00

In this part of the video, the speaker discusses their interest in purple gold, which is an alloy of gold and aluminum. Despite the rarity and difficulty in working with purple gold, the speaker is determined to make a ring out of it. With the help of a patent that provides guidance on strengthening the metal, the speaker decides to create purple gold with a composition of 81% gold and 19% aluminum, equivalent to 19 karat gold. Despite challenges, the speaker purchases 100 grams of gold for $5,700 USD to begin the project.

00:05:00

In this segment of the video, the content creator discusses the process of breaking down a large gold bar into smaller pieces for measurement. Instead of manual extraction, they decide to chemically dissolve the gold using hydrochloric and nitric acids, forming aqua regia, which slowly breaks down the gold into chloroauric acid. After dissolving all the gold and turning it into a fine powder, the creator reverts the gold back to its metallic form with potassium metabisulfite. The gold precipitates as a powder which is collected and further purified by washing with hot hydrochloric acid.

00:10:00

In this part of the video, the creator successfully dried the gold powder, losing only 0.01g in the process. They then obtained 99.995% pure aluminum pellets for the next step of making purple gold. The creator measured out 4.95g of gold powder and began heating it with a blowtorch in a crucible. They added 1.61g of aluminum to the molten gold, which eventually combined. The mixture was supposed to be 81% gold and 19% aluminum, but it did not turn purple due to excess heat. The alloy needed to cool for crystallization to occur and potentially reveal purple color. The patent mentioned a specific gold-aluminum structure for strength. After cooling, the alloy was covered in oxidized residue and needed to be removed from the crucible to inspect for any hidden purple gold.

00:15:00

In this part of the video, the creator attempts to create purple gold by melting gold and adding aluminum. Initially, there were issues with oxides causing a messy reaction. To prevent this, the creator devised a simple solution using a tabletop furnace with argon gas to reduce the oxidation. After successfully melting the gold and aluminum, the resulting purple gold appeared relatively oxide-free and promising for further experimentation.

00:20:00

In this segment of the video, the creator attempts to pour out purple gold but finds it has frozen in The Crucible due to cooling too quickly. After remelting it and adjusting the process, a cleaner pour is achieved but the color is not as expected. Upon investigation, the creator discovers the color issue and struggles to get the desired purple hue even after multiple attempts. Despite trying various methods like sanding and acid treatment, the purple color is not achieved as expected, leading to frustration and confusion.

00:25:00

In this segment of the video, the creator is experimenting with a process to turn metal into a purple color. They discover a crucial detail in a patent mentioning the color change at 600 degrees Celsius. After heating the metal, they successfully achieve a purple color transformation. Following this, they mold the metal into a bar shape resembling a gold bar, improve the appearance through hand sanding and polishing, concluding with a successful outcome.

00:30:00

In this segment of the video, the content creator discusses their experience casting pinkish purple gold, which initially appeared shiny and bright but was later discovered to have small cracks and color inconsistencies. They compare their piece to a professionally bought pendant, noting significant differences in quality. Through research, they discover that the issue with their gold likely stemmed from the presence of hydrogen gas causing holes during cooling. This finding is supported by similarities seen in photographs of aluminum with the same problem. The creator relates this to their situation, recognizing bubbles popping on the gold’s surface during solidification, concluding that the problem was likely caused by hydrogen gas in the molten metal.

00:35:00

In this part of the video, the creator discusses trying to remove hydrogen from aluminum to create a better outcome. Various methods were attempted, with bubbling Argon gas through the molten gold and aluminum being the chosen approach. A quartz tube was used to facilitate this process due to its high-temperature resistance. The creator encountered issues with the gold amount but managed to obtain a purified quantity. The process involved melting gold and aluminum, bubbling Argon gas, and waiting to remove hydrogen from the metal. Finally, a comparison bar mold was prepared for the outcome evaluation.

00:40:00

In this part of the video, the speaker describes their process of degassing the mold with a torch, pouring the material into the mold, waiting for it to cool, cleaning it up, and noticing a major improvement in the quality of the material. They mention the importance of annealing the material and eventually comparing it to the previous bar, which showed significant progress. The speaker addresses concerns about color discrepancies due to lighting issues but eventually finds a solution by comparing their material to professionally produced purple gold and using a polarizer for the camera. They then move on to making a ring, explaining the process of selecting a ring sizer, creating a 3D design, making a mold using a graphite mold, and purifying the gold for casting the ring. The speaker details their decision to learn how to carve their own graphite molds using a CNC machine and concludes by preparing to attempt casting the ring.

00:45:00

In this part of the video, the person describes their challenges and successes in making a ring out of purple gold. After facing issues with mold shrinking and cracking, they finally achieve a different shape they like. They detail using a Dremel for sanding and grinding, creating a design they are happy with, and the final polishing steps. The video creator expresses surprise at the pleasing final result, mentioning the durability of the ring. They reflect on the project’s difficulty and improvements for future attempts, concluding with a shift to other projects.

00:50:00

In this segment of the video, the content creator expresses relief that a project is complete and thanks patrons and Opa for support. They highlight Opa’s sponsorship, praising the browser for its speed, intuitive design, and features like the Lucid mode for enhancing video. The browser also offers a sidebar for easy access to social media, music apps, VPN service, and AI tools like Arya. The tab Island feature helps manage multiple tabs efficiently. The creator encourages viewers to try Opera, emphasizing its free availability and providing a download link. They thank their supporters on Patreon for early access to videos and offer benefits based on support level.