chemistry

Wilhelm Eschweiler

Wilhelm Eschweiler 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 Wilhelm Eschweiler rather than just read about it. In short: Wilhelm Eschweiler (born December 1, 1860, in Euskirchen and died March 21, 1936) was a German chemist. He was a professor at the Technical University of Hanover.

Key takeaways

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

Reference excerpt

Wilhelm Eschweiler (born December 1, 1860, in Euskirchen and died March 21, 1936) was a German chemist. He was a professor at the Technical University of Hanover.

Biography He passed his final exam (Obersekunda) at the Knickeberg Institute in Telgte and completed his pharmacy studies in Goch. He then visited pharmacies in Düsseldorf, Frankfurt, Elberfeld, Wiesbaden, Metz, and Hamburg, and studied pharmacy at the Ludwig-Maximilians-Universität München, passing the state exam in 1886. A year later, he became an assistant to Karl Kraut (chemist) at the Inorganic Institute of the Technical University of Hanover. During this time, he earned his doctorate in 1889 at the University of Rostock, focusing on contributions to the understanding of formaldehyde. In 1892, he became a private lecturer in analytical chemistry at Hanover, where he also taught food chemistry. In 1895, he received the title of professor, and in 1921, he became an associate professor. From 1927 to 1929, he was a senior assistant. From 1900 to 1934, he lectured in analytical chemistry. He particularly studied mineral dyes, polythionic acids, and was considered an expert in explosives and gunpowder. In the latter field, he often acted as an industry consultant and investigated, among other things, the Oppau explosion at Ludwigshafen-Oppau in 1921. Much of his research was published in the theses, diplomas, and dissertations of his students. One of his students was Fritz Strassmann. The Eschweiler-Clarke methylation is named after him and Hans Thacher Clarke. Eschweiler published work on this in 1905, and Clarke in 1933. Sometimes, it is known only as the Eschweiler method · .

Publications "On the Constitution of Acid Amides", Berichte der deutschen chemischen Gesellschaft ("Reports of the German Chemical Society"), year 30, 1897, number 8. "Replacement of Hydrogen Atoms Bound to Nitrogen by the Methyl Group with the Help of Formaldehyde", Berichte der deutschen chemischen Gesellschaft ("Reports of the German Chemical Society"), vol. 38, no. 1, 1905.

References

Worked examples

Example 1 — a first encounter with Wilhelm Eschweiler

Start with the simplest possible case. Write down what Wilhelm Eschweiler 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 Wilhelm Eschweiler 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 Wilhelm Eschweiler 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 Wilhelm Eschweiler

In research: Wilhelm Eschweiler 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 Wilhelm Eschweiler 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: Wilhelm Eschweiler is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1860 births, 1936 deaths, 19th-century people from the Kingdom of Prussia, so understanding it makes those chapters shorter.
In everyday life: Look for Wilhelm Eschweiler 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.

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How to study Wilhelm Eschweiler in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Wilhelm Eschweiler 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 Wilhelm Eschweiler out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Wilhelm Eschweiler in simple terms?

Wilhelm Eschweiler (born December 1, 1860, in Euskirchen and died March 21, 1936) was a German chemist. He was a professor at the Technical University of Hanover.

Why does Wilhelm Eschweiler 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 Wilhelm Eschweiler?

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 Wilhelm Eschweiler.