Cobalt is element number 27 on the periodic table meaning that it has an atomic number of 27, with 27 electrons, and a symbol of Co. Cobalt is located in the middle of the periodic table making it a transition metal. It was the fourteenth element to be discovered which makes it one of the oldest discovered elements on earth. Cobalt is an interesting element and has a lot of history and uses. Cobalt is similar to other elements such as iron and has different metallic properties. Cobalt was discovered in 1735 in Sweden, Germany. A lot can be discovered through one simple yet complex element such as Cobalt. Around the year 1735, many people were searching for gold( Au) and Silver ( Ag) through mines. Mines were becoming more and more popular …show more content…
Cobalt is rarely found in pure states so its usually found in compounds with other metals such as iron and rock. Cobalt meteorites is the only source in which Cobalt is found at a pure state. Metallic meteorites are mostly iron but, they contain enough nickel and cobalt to turn iron into an alloy of steel. Cobalt can be used as alloys for metals, superalloys to be exact. Coballoy is an alloy of Tungsten Carbide and Cobalt. It is used for making high-speed, hard-cutting tools. Superalloys can resist corrosion caused by intrusion of oxygen, carbon, sulfur, or nitrogen. This could be used for electroplating shiny metals surfaces. Superalloys also make good seals for glass or …show more content…
Cobalt can be used for many things such as alloys, laundry detergent, and cobalt can even be found in paint. Cobalt has many different properties that allow it to do many different interesting things. Cobalt is used for electroplating metals. What this means is that Cobalt has the properties to coat other metals and keep them from corroding and keep them shiny and looking brand new. Like I mentioned before, Cobalt can also be used as a magnet. When Co2+ is mixed with Fe2+, the current loss is lowered making it be able to act as a magnet. That is just one of its interesting properties. Cobalt is also found in laundry detergent. That is partly where laundry detergent gets its blue color from. In the ancient times, people noticed that if some cobalt ores were soaked in water, it would cause the water to turn blue. People who washed clothes would make sure not to have cobalt near their clothes, thinking it would also turn their clothes blue, But, if linen or cotton cloth is soaked and washed in water that is stained blue with cobalt, then the cloth or linen would appear whiter. Cobalt compounds have been used in “laundry bluing” since the dawn of times. With these methods of washing clothes, people then came up with ideas such as bleach, but thats a whole other
In Salinas Valley around the 1850s, gold was found by a man named James W. Marshall in California. The first people to hear and be familiar with the “Gold Rush” were the people in Oregon, Hawaii, and Latin America who started to flock to the state. Everyone told and the word spread which led around 300,000 people to California from the US. At first, gold was found on the ground and was to be picked up. Later on, gold was discovered from streams and riverbeds.
These two passages “There’s Still Gold in These Hills” and “Letter From a Gold Miner” help the reader understand the history and process of gold mining in the US. Both passages give detailed information, specific instructions, and an interesting background about gold mining. These passages use different strategies to help the reader perceive the history and process. These strategies may include using specific dates of when the gold rush took place, information to help the reader picture the setting of where to find gold, and also teaches the process step by step.
The fortune of silver and gold discovered in Colorado’s mountains were locked inside complex ores consisting of granite, quartz and other metals that rendered them useless, unless they could be separated (Egan. NPS). Miners originally imported stamp mills and Spanish arrastras to extract the gold and silver but both these methods were inefficient and lost upwards of 70 percent of the sought after mineral (NPS). In 1867, chemistry professor Nathanial P. Hill discovered an efficient method called the Swansea process to separate the precious metals and opened the Boston Colorado Smelter in Blackhawk (NPS).
According to recent statistics, zinc is the third most commonly used nonferrous metal in the United States. This unassuming metal was among the first minerals exploited by Man, used as a decorative material for thousands of years, although it never achieved the fame and notoriety of other metals such as gold or silver. In more recent times, new extraction and processing methods have allowed Man to produce higher-quality zinc than ever before, and to use it in an astonishingly high number of chemical and high-tech applications.
of men with desires to strike gold, slowed the settlements growth by making gold the
The excitement for mining and excavating for minerals was sparked in prospectors and people looking for an easy way of profit in the 60’s.This second gold rush of speaks, despite most of the minerals they were after was more on the lines of copper, nickel, iron and the like, brought high hopes of those wanting to get rich fast. Though thousands had hope in making money from mining on their own, many excavators found little gold on their own efforts. Most needed to actually find work in mines. But, they almost got something even better. The v...
A huge fascination of arsenic started in the 19th century when people got word of a province in southeastern Austria where people ate arsenic. Women would eat arsenic to help gain weight and fix their complexion to look more beautiful and men would eat arsenic because they believed it helped them breath easier when they were climbing high up in the mountains. One doctor by the name of Dr. Robert Craig MacLagan, was particularly interested in this and visited the town to see for himself what was really occurring. He observed the people and tested their urine to prove that they have been indeed ingesting arsenic. He wrote about the things he witnessed in the Edinburgh Medical Journal. The men in the town would eat 6 grains/dose at least twice a week, sometimes eating it on their bread or just drinking it with their water. As a result many Victorians began self-medicating themselves with arsenic.
Review the effects of arsenic as a soil pollutant on human health. You need to consider the major sources of arsenic (both natural & man-made), pathways for uptake by people and the impacts on human health.
The first gold findings were found at a mill business in stream beds in 1848. Gold mines were immediately put into action underground and above. Easy gold extraction reeled in the inexperienced and experts knowing they could find large quantities of the valuable mineral making them richer faster. Also the actions of cutting class lines with the skilled upper class men and the unskilled lower class laborers working at the same gold fields next to one another(Gold Rush 1849). The extremely wealthy anxious to get more rich than they already were. The poor and middle class to find gold and wealth for a better
“In the years which followed the gold discoveries, society was not stratified. Moral and religious principles were often disregarded, and all kinds of irregular situations could be found.”3
It is also in the body naturally so it is rare to have extremely low amounts of Magnesium even if not enough magnesium is being taken in by your diet.
Colorado also has a rich mining history which began in about 1859 with the discovery of gold and development of new reserves, Colorado’s present day industry is a modern, innovative, safe and environmentally responsible citizen that extracts a wide variety of minerals such as; gold, Marble, and gypsum from the earth, valued at more than $2 billion each year. (Colorado Mining Association, 2007)
The Moonstone Essay The Moonstone, written in 1868 by Wilkie Collins, is a mystery novel about a gem called "The Moonstone". The moonstone is a symbol of what everyone strives for, beauty and power. In the book, justice plays a huge role in terms of doing what is fair and morally right through action and attitude. Although the moonstone is overbearingly beautiful and breathtaking, like all beautiful things, it has a history "..that crime brings its own fatality with it" (Ch. IV. The aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid aforesaid With such great beauty, the moonstone almost takes power and control over people, making them act out in such ways just to get their hands on it.
Gold, nothing can compare to this precious metal. A symbol of wealth and prosperity, it has been a value for explorers and adventurers and a lure for conquerors. Today it is vital to commerce and finance; popular in ornamentation, and increasing importance in technology.
Around 1848 gold was discovered in the American River, which ran right through California. By 1849 tens of thousands of people from around the world mad...