Brass is a great material for house fixtures, such as door knobs and railings. Its gold-like color and sheen makes it a perfect complement to dull-looking façades or interiors. Unfortunately, this luster isn’t made to last. When exposed to certain substances, brass will tarnish quickly. This is mostly because both its main components—copper and zinc—easily tarnish as well.
What Tarnishes Brass
There are quite many substances that can suck out the brilliance in brass. While it would take some of them a few days to a week of exposure to tarnish brass, others can easily do so overnight, or even in just an hour or two.
● Liver of Sulfur. A mixture of potassium sulfide, potassium polysulfide, potassium thiosulfate, and potassium bisulfide, this substance was originally used for combating arthritis. Later it was disfavored for medical purposes due to the toxicity of sulfur. Today, LOS is mainly used in metalworking for developing a patina on copper alloys. Read more from this article: http://bit.ly/2HNzzsw
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