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3 thoughts on “jewelry trading wholesale What is the principle of cleaning the gold jewelry?”
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turkish jewelry wholesale trackid sp-006 What you ask is the principle, that is not an ordinary physical cleanup method. What you ask is chemical principles. Wash it with Wang Shui. Wang Shui is concentrated and concentrated. Entering Wangshui, the gold on the surface on the surface will be dissolved, and the exposed gold will look new and achieve the effect of cleaning, but the quality of the gold itself will be reduced. Some merchants use this "stealing gold" to dissolve in the king water Gold, heated through high temperature, or use other metals (iron powder, aluminum powder, etc.) to react to the reaction to replace the gold, produce obvious gold precipitation
gemstone jewelry india wholesale That is, strong corrosive nitric acid can corrode the surface of the surface
indian jewelry wholesale malaysia Gold jewelry cleaning and maintenance: cleaning in jewelry stores, using ultrasonic washing tanks, and washing standard formulas: 40C warm water 1000 ml, 100 grams of water -free chromic anhydride, and 30 ml of sulfuric acid. The method is: hang the jewelry on the plastic sheet number, then wear copper wire, hang it on the stainless steel rod, suspend it in the washing tank, and the washing time is 80 to 12 seconds.
The handmade cleaning method is to first immerse the jewelry in 30 % sulfuric acid washing solution for 5 minutes, wash with a brush, then rinse under the tap water cage head for 5 minutes, and finally use 20 % shampoos or washing or washing or washing Clean essence for 10 minutes, wash, flush water for 20 minutes, and dry it with silk