Selenium sulfide in shampoos erodes Gold Ornaments and jewelries.

Selenium sulfide, which is used in shampoos for the treatment of Dandruff and scalp dermatitis, is used for the extraction of Glod, Silver and Copper.

It also has potential side effects. Use of Selenium sulfide can cause skin irritation, dry skin, hair loss, can irritate eyes on contact with possible eye damage, high exposure may cause headache, nausea, vomiting, garlic odour of breath, metallic taste, and coated tongue, known to cause cancer, may damage the liver and kidneys, prolonged exposure may casue pallor, nervousness and mood changes.

However, the most dangerous property of this compound, when used in shampoo is that it can erode the Gold Ornaments or jewelry that is worn.

Hence, a caution notice is given along with the shampoo on the usage leaflets or on the bottle stating that Gold ornaments should not be worn while administration.

One such shampoo is manufactured by Glenmark Pharmaceuticals.

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Gold Uses in Aerospace and NASA

If you are going to spend billions of dollars on a vehicle that when launched will travel on a voyage where the possibility of lubrication, maintenance and repair is absolutely zero, then building it with extremely dependable materials is essential. This is exactly why gold is used in hundreds of ways in every space vehicle that NASA launches.

Gold is used in circuitry because it is a dependable conductor and connector. In addition, many parts of every space vehicle are fitted with gold-coated polyester film. This film reflects infrared radiation and helps stabilize the temperature of the spacecraft. Without this coating, dark colored parts of the spacecraft would absorb significant amounts of heat.

Gold is also used as a lubricant between mechanical parts. In the vacuum of space, organic lubricants would volatilize and they would be broken down by the intense radiation beyond Earth's atmosphere. Gold has a very low shear strength and thin films of gold between critical moving parts serves as a lubricant - the gold molecules slip past one another under the forces of friction and that provides a lubricant action.

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Gold used in Computers

Gold is used in many places in the standard desktop or laptop computer.

The rapid and accurate transmission of digital information through the computer and from one component to another requires an efficient and reliable conductor. Gold meets these requirements better than any other metal. The importance of high quality and reliable performance justifies the high cost.

Edge connectors used to mount microprocessor and memory chips onto the motherboard and the plug-and-socket connectors used to attach cables all contain gold. The gold in these components is generally electroplated onto other metals and alloyed with small amounts of nickel or cobalt to increase durability.

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