White gold has become a popular alternative alloy for wedding rings and other jewelry. White gold is a gold alloy of at least one white metal (normally palladium, manganese or nickel) and gold. The purity of white gold is provided in carats similar to yellow gold.
The characteristics of white gold differ based on the materials and the proportions of these used. Consequently, white gold alloys find applications in a number of fields. The term 'white' does not just refer to a pure white color, but also encompasses colors such as tinted brown, pale yellow and even pale rose. The off-white colors are often enhanced by rhodium plating.
The composition of white gold is shown in the table below:
Copper may be added for improvement in malleability. Gold-palladium silver and gold-nickel copper zinc are used in the jewelry industry. Nickel and palladium behave as primary bleaching agents for gold and zinc behaves as a secondary bleaching agent to improve the color of copper.
White gold is manufactured by alloying other metals with yellow gold. Most commercial alloys are zinc, silver, gold and nickel however platinum is also used. White gold is available only up to 21 carat so as to retain the white color.
There are several varieties of white gold. Palladium and nickel are the top two gold bleachers; zinc and silver are the next two best elements to bleach yellow gold white. Plating yellow gold with rhodium may also help it to turn white. In case copper is added to the alloy mix, the piece has to rhodium plated.
According to certain bench jewelers, alloying gold with nickel results in a cold white color and is tough to work with. When palladium is used as the alloying metal,., the size setting will be relatively heavier, due to palladium's comparatively high specific gravity, and hence the setting will be made more expensive.
Gold-nickel alloys are strong and hard and are often used for pins and rings. Gold-palladium alloys are pliable, soft and good for white gold gemstone settings, sometimes with metals such as platinum, silver and copper for durability and weight.
Jewelry is the most popular application for white gold. This includes necklaces, earrings, rings and belts.
Disclaimer: The views expressed here are those of the author expressed in their private capacity and do not necessarily represent the views of AZoM.com Limited T/A AZoNetwork the owner and operator of this website. This disclaimer forms part of the Terms and conditions of use of this website.
Gary graduated from the University of Manchester with a first-class honours degree in Geochemistry and a Masters in Earth Sciences. After working in the Australian mining industry, Gary decided to hang up his geology boots and turn his hand to writing. When he isn't developing topical and informative content, Gary can usually be found playing his beloved guitar, or watching Aston Villa FC snatch defeat from the jaws of victory.
Please use one of the following formats to cite this article in your essay, paper or report:
Thomas, G.P.. (2020, October 19). White Gold – Chemical Composition, Mechanical Properties and Common Applications. AZoM. Retrieved on June 01, 2023 from https://www.azom.com/article.aspx?ArticleID=8086.
Thomas, G.P.. "White Gold – Chemical Composition, Mechanical Properties and Common Applications". AZoM. 01 June 2023. <https://www.azom.com/article.aspx?ArticleID=8086>.
Thomas, G.P.. "White Gold – Chemical Composition, Mechanical Properties and Common Applications". AZoM. https://www.azom.com/article.aspx?ArticleID=8086. (accessed June 01, 2023).
Thomas, G.P.. 2020. White Gold – Chemical Composition, Mechanical Properties and Common Applications. AZoM, viewed 01 June 2023, https://www.azom.com/article.aspx?ArticleID=8086.
Do you have a review, update or anything you would like to add to this article?
Cancel reply to comment
Matthew Glasscott, Ph.D.
In this interview conducted at Pittcon 2023 in Philadelphia, Pennsylvania, we spoke to Matthew Glasscott from the US Army Corps of Engineers about sustainable construction materials.
Dr. Yufeng Zheng
In this interview, AZoM speaks with Dr. Yufeng Zheng, Assistant Professor and Director of the Electron Microscopy Core Shared Facility at the University of Nevada, Reno about the capabilities and research conducted at the facility.
At JEC World 2023, AZoM caught up with Roberst Tsai, Founder and Chairman of Swancor, on the show floor. We discussed the company's history and what it hoped to achieve at the show this year.
Discover the GC 2400™ Platform, offering innovative technology for analytical laboratories that enables access to real-time information on the go.
With easy Mounting and quick interconversion between autosampler and manual modes, the new AUTOsample-100 is compatible with 100 MHz benchtop NMR spectrometers.
Bettersize's BetterPyc 380 is an automated gas pycnometry instrument with integrated temperature control, pressure sensing and software. It measures volume, true density, and more up to a 4 digit accuracy.
The global semiconductor market has entered an exciting period. Demand for chip technology is both driving the industry as well as hindering it, with current chip shortages predicted to last for some time. Current trends will likely shape the future of the industry, which is set to continue to show
The primary distinction between graphene-based batteries and solid-state batteries lies in the composition of either electrode. Although the cathode is commonly changed, carbon allotropes can also be employed in fabricating anodes.
In recent years, the IoT is rapidly being introduced into almost all sectors, but it has particular importance in the EV industry.
AZoM.com – An AZoNetwork Site
Owned and operated by AZoNetwork, © 2000-2023