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Pearl always is cherished by people for its warmth, elegant, magnificent, and is honored as jewelry empress. The pearl's ingredient includes the mechanism calcium carbonate, the chemical stability is bad, may dissolve in the acid or alkali. In the daily life it is not suitable for touching the perfume, the oil, the salt, the ethyl alcohol, the opaline, the vinegar and the dunghill, also cannot contact the banana oil and so on organic solvent. In summer, the human bodies perspire very much, is also not suitable for wearing the pearl necklace. When don't want to wear it must use the high-quality neutral soap or the liquid detergent wash gently cleanly, then dry it but cannot be insolation or roast under the sun. Pearl cannot be on the same place with the camphor ball when collection, also do not keep in the safe-deposit vault for a long time. The degree of hardness is low. White pearl may become yellow when wearing for long time , the gloss also gets bad, This is the slang said " when people grow old become worthless " . then How to maintain the gloss of pearl is necessary .pearl can be blanched by the Diluted hydrochloric acid or 1%-1.5% hydrogen peroxide, needed to pay attention cannot float fiercely otherwise it gets tarnish……
Description: Pearl is honored as jewelry empress. the chemical stability is bad, If maintains not well, it will change color, how to maintain the gloss of pearl ……


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