Proses Penyepuhan Emas | Tugas Elektrolisis

Summary

This video showcases a step-by-step process of metal coloring, starting with red coloring using a 500ml water and 200g portas solution. The team demonstrates how to prepare the materials, clean the metal using brass wire brushes, and then apply color via a chemical reaction powered by a 4.5-volt battery. They transition the color from red to yellow, and finally to white, using different metal compounds like gold and silver. The video concludes with a discussion on how chemical mixtures and voltages affect the color transformation of metals.

Takeaways

• 😀 The group (Kelompok 3 Hari) is demonstrating a process, starting with coloring.
• 🧪 The process involves preparing a mixture with 500 ml of water and 200 grams of 'portas', which is a chemical used to dissolve oils before the coloring process.
• 🧼 After soaking the material in the solution for 2 minutes, it is rinsed with clean water and scrubbed with a brass wire brush and natural soap made from 'buah legit'.
• 🖌️ The group then begins the red coloring process by mixing 20 grams of 'portas' with other chemicals, including HCL, for the dye.
• 🔋 The coloring process uses a power source with 4.5 volts to initiate the chemical reaction, using platinum as a conductor, though a battery can also be used.
• 🔴 After the red coloring is complete, the material is rinsed and the result is a 'rose gold' color.
• 🟡 The group then proceeds to the yellow coloring, which follows the same steps but uses slightly different chemical ratios and components.
• 🔄 After changing the color from red to yellow, the material is rinsed again.
• ⚪ The final step is the white coloring, which involves using silver instead of gold, and the same chemical process is followed to achieve the white color.
• 💧 The final product requires additional cleaning after the white coloring process to ensure a polished finish, and this method is standard in jewelry production.

Q & A

What is the purpose of the initial preparation process involving water and 'portas'?

The initial preparation process involves mixing 500 ml of water with 200 grams of portas to create a chemical solution that helps dissolve oil residues on the surface of the material before the coloring process.

Why is the object soaked for 2 minutes in the portas solution?

The object is soaked for 2 minutes in the portas solution to allow the chemical to dissolve any oil or contaminants on the surface, ensuring the material is clean before proceeding with further processes.

What cleaning tools are used after the soaking process?

A brass wire brush is used along with a natural detergent made from fruit, such as buah legit, to clean the material after soaking. The natural detergent helps remove any remaining impurities without the use of harsh chemicals.

How is the red coloring process carried out?

The red coloring process involves mixing 500 ml of water with 20 grams of portas, along with chemicals such as gold, copper, and HCL. The material is then connected to a battery or adapter to apply a 4.5-volt charge, which helps the color bond to the surface.

What is the significance of using a 4.5-volt charge during the coloring process?

The 4.5-volt charge is used to create an electrochemical reaction, helping the color bind to the material during the coloring process. This ensures that the desired shade of red is achieved and adheres properly.

How is the material transitioned from red to yellow during the process?

To transition from red to yellow, the material is cleaned and soaked again. The yellow coloring uses a similar process but with a different mixture: 20 grams of portas, 1 gram of gold, and chemicals such as HCL and nitrite. The process is completed using the same 4.5-volt charge.

What materials are used to achieve the white color?

The white color is achieved using silver as the primary material, along with portas and clean water such as mineral water or distilled water. The process follows the same electrochemical procedure as the red and yellow coloring.

What additional steps are necessary after applying the white color?

After applying the white color, the material must be cleaned again to ensure the color is properly set. This is because the silver-based coloring requires extra cleaning to finalize the process.

What is the role of the brass wire brush in the cleaning process?

The brass wire brush is used to scrub the surface of the material to remove any remaining dirt or residues after the chemical soaking. This ensures the surface is completely clean and ready for the coloring process.

Why is the use of natural detergent emphasized during the cleaning process?

The natural detergent is emphasized to avoid using harsh chemicals that could damage the material or affect the coloring process. It provides a gentle, eco-friendly way to clean the surface before further processing.