Katrina Rosales
Gold is a popular choice for jewellery due to its association with wealth, social status, and quality. It is also known for its resistance to tarnishing. However, gold used in jewellery is often mixed with other metals, which can make it susceptible to tarnishing. One of the factors that can contribute to tarnishing is exposure to perfume. While opinions vary, many sources agree that the chemicals commonly found in perfumes can react with the metal components of gold jewellery, leading to tarnishing, discolouration, or even surface damage over time.
| Characteristics | Values |
|---|---|
| Gold tarnishing | Gold is tarnish-resistant and does not react with water, acid, or other compounds. However, gold used in jewelry is often mixed with other metals that can react with compounds in perfumes and cause tarnishing. |
| Effect of perfume on gold | Most perfumes contain alcohol and chemicals that can react with the metal components of gold jewelry, leading to tarnishing, discolouration, or surface damage. |
| Preventing tarnishing | To prevent tarnishing, it is recommended to apply perfume before putting on gold jewelry, or to remove jewelry before activities involving exposure to moisture or chemicals. |
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What You'll Learn
Pure gold is resistant to tarnishing
Gold is known for being one of the least reactive elements. Pure gold does not tarnish, rust or corrode because it doesn't combine with oxygen easily. It is also resistant to oxidation. However, gold used for jewellery is often mixed with other metals, which can cause it to tarnish. This is because pure gold is very soft and challenging to work with, so it is alloyed with other metals to form more robust and durable jewellery. These alloy metals can introduce certain vulnerabilities that make gold jewellery susceptible to tarnishing and other forms of discolouration.
The most common cause of gold tarnishing is exposure to sulphur compounds, which are present in the air and some foods and cosmetics. When gold jewellery comes into contact with sulphur compounds, it creates a layer of gold sulphide on the surface of the metal, causing it to look dull and discoloured. This layer becomes thicker the longer the exposure to sulphur, making it harder to remove. Additionally, factors like exposure to chemicals, cosmetics, perfumes, and the pH of the wearer's skin can also affect the appearance of gold jewellery over time.
Perfumes often contain alcohol and various chemical compounds, some of which can react with the metal components of gold jewellery. This reaction can lead to tarnishing, discolouration, or even surface damage over time. If the gold jewellery has a plating or coating, such as gold vermeil or gold-filled, the chemicals in perfume can potentially wear away the thin layer of gold, exposing the base metal underneath. However, this is less likely to occur with higher-karat gold, as it contains more pure gold and fewer alloy metals. For example, 24-karat gold will not tarnish as it is pure gold, whereas jewellery under 14 karats of gold will show more signs of tarnishing.
To minimise potential damage to gold jewellery from perfume, it is recommended to apply perfume before putting on your jewellery. Additionally, regularly cleaning and properly caring for gold jewellery can help maintain its shine and appearance.
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Gold alloys can tarnish
Gold in its purest form does not tarnish. However, gold alloys can tarnish over time. Gold is often alloyed with other metals to increase its durability and strength, as pure gold is quite soft. These metal alloys, such as copper, silver, or nickel, are more prone to oxidation and tarnishing.
For example, when copper is mixed with gold to create rose gold, it adds a pinkish hue but also makes the alloy more susceptible to tarnishing as copper oxidizes over time. Similarly, white gold contains metals like nickel or palladium that may react with air or moisture, especially if they aren't rhodium-plated. This can result in a dull appearance or slight discoloration.
The presence of other metals in gold alloys can make them more reactive, leading to tarnishing or discoloration. Factors like exposure to chemicals, cosmetics, perfumes, and even the pH of the wearer's skin can affect the appearance of gold jewelry over time. The metals in gold alloys can react with external substances like sweat, oils, and certain chemicals in perfumes or lotions, causing staining or discoloration.
To minimize potential damage to gold jewelry from perfumes, it is recommended to apply perfume before putting on the jewelry. Additionally, regular cleaning and proper care can help maintain the shine and appearance of gold jewelry.
While tarnishing may be undesirable on gold jewelry, it is important to note that it does not necessarily have a negative impact on the gold's worth. In some cases, such as vintage-style jewelry, a slight tarnish can enhance the piece's appeal and value.
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Gold jewellery can be protected
To protect gold jewellery from perfumes specifically, it is suggested to apply perfume before putting on the jewellery. This minimises the potential damage caused by the alcohol and chemical compounds in perfumes, which can react with the metal components of gold jewellery, leading to tarnishing, discolouration, or surface damage. Additionally, storing gold jewellery in a dry place, such as a jewellery box or pouch, helps protect it from humidity and other environmental factors.
Another way to protect gold jewellery is to be mindful of potential damage caused by everyday activities. Gold is a soft metal, making it susceptible to scratches, dents, and dings. Removing gold jewellery while playing high-contact sports or engaging in activities with potential impact can help prevent such damage. Chlorine is also known to weaken the structure of gold jewellery, so it is advisable to remove gold items before swimming in chlorinated water.
Regular cleaning and proper care can also help maintain the shine and appearance of gold jewellery. Using a soft, lint-free cloth to gently wipe down the jewellery can remove dust and particles, preventing the accumulation that can lead to tarnishing. A solution of warm water and dish soap can be used for a deeper clean, followed by gentle scrubbing with a soft brush. Additionally, it is recommended to have gold jewellery professionally cleaned and inspected for any damage every six months to ensure its longevity.
When storing gold jewellery, it is important to use the right storage containers to maintain its quality. Soft cloth pouches, individual jewellery boxes, and velvet-lined compartments are ideal as they protect the gold from dust, air, and moisture. It is also crucial to secure these storage containers in a cool, dry, and discreet location to prevent unwanted chemical reactions, tarnishing, and unauthorised access.
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Chemicals in perfume can cause tarnishing
Gold is a "'noble' metal, which means it is resistant to corrosion and oxidation. In its pure form, gold does not tarnish or combine with oxygen easily. However, gold used in jewelry is often mixed with other metals, which can allow some tarnish to develop.
The metals mixed with gold usually have properties that make them susceptible to tarnishing. These alloys can react with the air and cause tarnishing. The most common cause of gold tarnishing is exposure to sulfur compounds, which are present in the air and some cosmetics. When gold jewelry comes into contact with sulfur compounds, it creates a layer of gold sulfide on its surface, causing the gold to look dull and discolored.
Perfumes often contain alcohol and various chemical compounds, some of which can react with the metal components of gold jewelry. This reaction can lead to tarnishing, discoloration, or even surface damage over time. If the gold jewelry has a plating or coating, the chemicals in the perfume can potentially wear away the thin layer of gold, exposing the base metal underneath.
To minimize potential damage to gold jewelry from perfume, it is recommended to apply perfume before putting on jewelry. Additionally, higher-karat gold will be less likely to tarnish, as it contains a higher percentage of pure gold. For example, 24-karat gold will not tarnish as it is pure gold, while jewelry under 14 karats will show more tarnishing.
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Gold's reaction with sulphur compounds
Gold is known for being one of the least reactive elements. In its pure form, gold maintains its natural shine and does not rust or tarnish because it does not easily combine with oxygen. However, gold used in jewellery is often mixed with other metals, which can make it susceptible to tarnishing.
Gold is a "noble" metal, meaning it does not react with common solvents and environmental chemicals. However, some chemicals can react with the metal components of gold jewellery, leading to tarnishing, discolouration, or even surface damage over time. For example, soaps, shampoos, and conditioners can contain chemicals that react with the metal in gold jewellery, causing tarnishing or discolouration. The heat and steam in a shower environment can also accelerate these chemical reactions, potentially affecting the appearance and longevity of the jewellery.
Gold, in its pure form, is relatively inert and less prone to reacting with chemicals. However, most gold jewellery is not made from pure gold due to its softness. Alloys are added to enhance durability, but these alloys can react with certain substances. One such substance is sulphur.
Sulphur-containing compounds will bind to gold. Gold atoms are zero valent and generally do not want to participate in bonding with other atoms. However, sulphur radical species, such as the trisulfur ion, can form stable and soluble complexes with gold ions in aqueous solutions at high temperatures and pressures. These species enable the extraction, transport, and focused precipitation of gold by sulphur-rich fluids, which can result in the formation of gold deposits.
While the exact mechanism of the gold-sulphur bond is unclear, it is known to be a comparatively weak interaction that is still strong enough to prevent detachment. The structure of the bond suggests a partially covalent character.
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Frequently asked questions
Gold is a noble metal, which means it is resistant to corrosion and oxidation. It is also tarnish-resistant and does not react with common solvents and environmental chemicals. However, gold used for jewellery is often mixed with other metals, which can tarnish. Therefore, while pure gold will not tarnish due to exposure to perfume, gold jewellery may tarnish or discolour due to the other metals in the alloy reacting with the chemicals in the perfume.
To prevent gold jewellery from tarnishing, it is recommended to apply perfume before putting on your jewellery. You should also remove your gold jewellery before showering or swimming, as exposure to water, steam, heat, chlorine, and other chemicals can cause tarnishing.
Gold jewellery can also tarnish due to exposure to air, moisture, oils on the skin, and other cosmetics. Additionally, factors such as the pH of the wearer's skin, soaps, shampoos, conditioners, and other shower products can contain chemicals that react with the metal and cause tarnishing or discolouration.
