chemistry

Rare Earths Facility

Rare Earths Facility is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rare Earths Facility rather than just read about it. In short: The Rare Earths Facility was a production plant for various chemicals and metals including thorium, uranium, and radium. It was located in West Chicago, Illinois, USA.

Key takeaways

Rare Earths Facility belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Rare Earths Facility to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Rare Earths Facility from memory before moving on to harder problems.

Reference excerpt

The Rare Earths Facility was a production plant for various chemicals and metals including thorium, uranium, and radium. It was located in West Chicago, Illinois, USA.

History The site was opened in 1931 by the Lindsay Light and Chemical Company. It processed ores like monazite to produce elements, including thorium and uranium. It also made gaslight mantles, and during World War II, hydrofluoric acid. In 1958, it became owned by American Potash and Chemical Company (AMPOT), which at one point had a 'Lindsay Chemical Division.' In 1967, AMPOT, and thus the facility, were bought by Kerr-McGee. The Rare Earths Facility were closed by Kerr-McGee in 1973. In 2005, KMCC was spun off from Kerr-McGee as Tronox, shortly before Kerr-McGee was acquired by Anadarko Petroleum. Tronox inherited responsibility for the Rare Earths Facility and other sites. Tronox went bankrupt in 2009 and shareholders sued Anadarko Petroleum, partly for having misled investors in Tronox about its environmental debts.

Pollution In the early years, people from the surrounding community used the mill tailings as fill dirt in various properties, such as their yards and gardens. A woman who played in such a yard as a child later sued Kerr-McGee over her Hodgkin's disease and settled out of court in 1988. Radioactive waste from the plant was put in a local landfill that later became a public park called Reed-Keppler Park. Kress Creek and West Branch Dupage River (including sediments, banks, and floodplains) were contaminated by years of rainwater runoff from REF going into a storm sewer and then into the creek. The floodplain includes people's yards. The West Chicago Sewage Treatment Plant was contaminated when mill tailings from REF were used as fill dirt there. This also resulted in pollution of the West Branch Dupage River from runoff and erosion. In 1991, the Illinois Department of Public Health found elevated cancer rates in the community.

Illustrations

Worked examples

Example 1 — a first encounter with Rare Earths Facility

Start with the simplest possible case. Write down what Rare Earths Facility claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rare Earths Facility before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rare Earths Facility ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rare Earths Facility

In research: Rare Earths Facility appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Rare Earths Facility in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Rare Earths Facility is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1931 establishments in Illinois, 1973 disestablishments in Illinois, Chemical companies of the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Rare Earths Facility outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Rare Earths Facility” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Rare Earths Facility in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Rare Earths Facility means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Rare Earths Facility out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rare Earths Facility in simple terms?

The Rare Earths Facility was a production plant for various chemicals and metals including thorium, uranium, and radium. It was located in West Chicago, Illinois, USA.

Why does Rare Earths Facility matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rare Earths Facility?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rare Earths Facility.