Sunday, June 24, 2012

CAPpings - Jewellery - Why does Gold (14 carat) change color or discolor skin? Is it a corrosion concern for jewelry users at the time of soaring Gold price?

Gold itself does not corrode, but its primary alloys of silver or copper will do so—forming very dark chemical compounds—under moist or wet conditions.

If you sweat, fatty acids released by your body can cause corrosion of 14 Karat gold.


Pure gold itself does not corrode, but its primary alloys with copper or silver will do so forming very dark chemical compounds under moist or wet conditions. If you perspire, fatty acids released by your body can cause corrosion of 14 Karat gold. This problem can be worse in coastal and humid areas where sea salt in the air combines with perspiration and discolors skin. The chlorine, which is routinely added to the swimming pools and spas, is one of the worst enemies of gold. Corrosion can weaken gold's structure, eventually leading to breakage.

Article Source: http://www.goldmasters-sa.com/jewelryfacts.htm

Chemicals such as chlorides and sulfides contained in perspiration may react with metals  contained in the gold alloy, causing a black mark on your skin. Eating lots of tomatoes or drinking many cups of coffee may cause problems for some people. Your body chemistry may change from time to time.  A ring which previously caused no problem could suddenly start to smudge your finger. Exposure to chemicals outside the body can also have the same effect. Salt reacts with the alloys in yellow gold to cause corrosion. Eating that box of salted popcorn in the movie may cause your jewelry to darken your skin.

Article Source: http://www.generousgems.com/i/common-questions/buying-gold-jewelry/

1 comment:

  1. Soaring gold price may prompt the jewellery users to know about corrosion.

    Interesting facts and figures from http://www.gold.org/jewellery/markets/india/

    India is the largest market for gold jewellery in the world, representing a staggering 746 tonnes of gold in 2010.

    Indian consumers are actively engaged in considering their next piece; 75% of women say they are constantly searching for new designs. Whilst over 50% of gold jewellery is bought for weddings, the wedding anniversary has now become the most aspirational occasion for receiving gold today, extending a couple’s relationship with gold beyond the marriage ceremony.

    India’s culture and mythology embrace gold. And India’s traditions of unparalleled craftsmanship and skill are exemplified by the country’s gold jewellery manufacturing, with the majority of pieces still made meticulously by hand. Each region’s symbols and designs are reinterpreted in gold which is overwhelmingly high in caratage.

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