chemistry

Julius Lewkowitsch

Julius Lewkowitsch 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 Julius Lewkowitsch rather than just read about it. In short: Julius Isidor Lewkowitsch (1857–1913) was a German chemical engineer, specialising in vegetable and animal oils and fats, who settled in Victorian England. He was the author of The Chemical Technology and Analysis of Oils, Fats, and Waxes, a standard text that went through five editions in the years 1895–1921.

Key takeaways

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

Reference excerpt

Julius Isidor Lewkowitsch (1857–1913) was a German chemical engineer, specialising in vegetable and animal oils and fats, who settled in Victorian England. He was the author of The Chemical Technology and Analysis of Oils, Fats, and Waxes, a standard text that went through five editions in the years 1895–1921.

Life Julius Lewkowitsch was born in Ostrowo (then in the Kingdom of Prussia) on 4 September 1857, into a Jewish family. In 1879 he obtained a doctorate from Breslau University, where he studied under Victor von Richter. After short periods as a secondary-school teacher and as a research assistant to Victor Meyer at Heidelberg University, Lewkowitsch became an industrial researcher. In 1887 he moved to England as Technical Manager to the soap manufacturers Joseph Watson & Sons in Leeds, where he developed a way of preparing glycerin from soap lye without the use of arsenic. In 1889 he became a member of the Society of Chemical Industry. In 1895 he set up in business as a consulting chemist in Manchester, moving to London in 1898. He established his own laboratory in West Hampstead. On 5 May 1902 Lewkowitsch married Katherine Julia Morris. Their two children were Elsa Lewkowitsch and Jason Farradane. Lewkowitsch died at Chamonix on 15 September 1913. In 1980 the Society of Chemical Industry's biennial Julius Lewkowitsch Memorial Lecture was established in his memory in accordance with a bequest by his daughter, Elsa.

Awards Lavoisier Medal, 1909

Publications The Chemical Technology and Analysis of Oils, Fats, and Waxes, first edition 1895. Lewkowitsch was a contributor to the 11th edition of the Encyclopaedia Britannica (1911).

References

External links Photograph of Julius Lewkowitsch, ca. 1896, Litchfield Collection on the History of Fatty Materials. Accessed 10 January 2017.

Worked examples

Example 1 — a first encounter with Julius Lewkowitsch

Start with the simplest possible case. Write down what Julius Lewkowitsch 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 Julius Lewkowitsch 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 Julius Lewkowitsch 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 Julius Lewkowitsch

In research: Julius Lewkowitsch 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 Julius Lewkowitsch 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: Julius Lewkowitsch is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1857 births, 1913 deaths, 19th-century German Jews, so understanding it makes those chapters shorter.
In everyday life: Look for Julius Lewkowitsch 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.

Affiliate

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

How to study Julius Lewkowitsch in 20 minutes

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

Frequently asked questions

What is Julius Lewkowitsch in simple terms?

Why does Julius Lewkowitsch 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 Julius Lewkowitsch?

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 Julius Lewkowitsch.