1, jewelry cleaner. When platinum turns to Huang Shi, it can be cleaned with jewelry cleaner. After platinum is directly soaked in jewelry cleaner for a moment, the yellow scales on the surface of platinum will gradually fall off. Then, take out the platinum, rinse it with water slightly and dry the water.

2. toothpaste. In addition, if platinum turns yellow, it can also be washed white with toothpaste. After a small amount of toothpaste is squeezed out and smeared on the surface of platinum, platinum can be brushed repeatedly with a toothbrush dipped in water, and then washed slightly with water to restore the true color of platinum.

3. Soapy water. Platinum can also be washed with soapy water when it turns yellow. After the soap is stirred into soapy water in warm water, platinum is put into soapy water and then gently scrubbed with cotton cloth, which can also clean platinum.