Question

Каким химическим способом очистить медную проволоку от черного налёта? (оксид меди(II))

Answer 1

Лучший способ поместит их в горячую воду с добавлением небольшого кол-ва моющего средства, осторожно протереть мягкой губкой и промыть водой. Можно еще томатным кетчупом, тоже вариант.

Answer 2

Cleaning Copper Wire from Black Deposit (Copper (II) Oxide)

To clean copper wire from black deposits, particularly copper (II) oxide, you can use a chemical method involving the use of acids. One common method is to use a mixture of vinegar (acetic acid) and salt. Here's a detailed explanation:

1. Materials Needed: - Vinegar (acetic acid) - Table salt (sodium chloride) - Water - Container for soaking the wire - Protective gloves and goggles for safety

2. Procedure: - Create a solution by mixing vinegar and salt in a container. The ratio of vinegar to salt can vary, but a common recommendation is to use 1 cup of vinegar for every tablespoon of salt. - Stir the solution until the salt is dissolved. - Submerge the copper wire in the solution and let it soak for a period of time. The duration of soaking can vary, but it's often recommended to leave it for several hours or overnight. - After soaking, remove the wire from the solution and rinse it thoroughly with water to remove any remaining residue.

3. Explanation: - The acetic acid in the vinegar reacts with the copper (II) oxide, forming a soluble copper acetate compound and releasing carbon dioxide gas. The salt in the solution can help enhance the cleaning process by acting as an abrasive agent.

4. Safety Precautions: - When working with acids and chemical solutions, it's important to wear protective gloves and goggles to prevent any potential contact with the skin or eyes.

Remember to always handle chemicals with care and dispose of any waste materials properly.

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