science

Oleylamine

Oleylamine is a science 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 Oleylamine rather than just read about it. In short: Oleylamine is an organic compound with a molecular formula C18H35NH2. It is an unsaturated fatty amine related to the fatty acid oleic acid.

Key takeaways

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

Reference excerpt

Oleylamine is an organic compound with a molecular formula C18H35NH2. It is an unsaturated fatty amine related to the fatty acid oleic acid. The pure compound is a clear and colorless liquid. Commercially available oleylamine reagents vary in colour from clear and colorless to varying degrees of yellow due to impurities. The major impurities include trans isomer (elaidylamine) and other long chain amines with varying chain lengths. Minor impurities include oxygen-containing substances such as amides and nitroalkanes.

Chemical reactions Oleylamine reacts with carboxylic acid to form its carboxylate salt through an exothermic reaction. Its carboxylate salt can further condensate into amides through the loss of one water molecule. In the presence of acetic acid, oleylamine forms with DNA insoluble complexes with the radii of the particles equal 60–65 nm.

Uses Commercially, it is mainly used as a surfactant or precursor to surfactants. It has also been used in the laboratory to synthesise nanoparticles. It can function both as a solvent for the reaction mixture and as a coordinating agent to stabilize the surface of the particles. It can also coordinate with metal ions, change the form of metal precursors and affect the formation kinetics of nanoparticles during the synthesis. As a ligand bound to metal nanoparticle surfaces, it exhibits an apparent length of 1.8 - 2.2 nm. This reported value varies between studies and the degree of interdigitation between overlapping oleylamine layers, particularly those of neighboring nanoparticles.

Safety Oleylamine has an LD50 (intraperitoneal) of 888 mg/kg in mice; however, note that it is listed as a level 3 health hazard on the NFPA diamond, so it should be handled with caution.

Characterization Oleylamine can be characterized using MS, HNMR, CNMR, IR, and Raman. Each technique shows distinct peaks in various regions.

Illustrations

Worked examples

Example 1 — a first encounter with Oleylamine

Start with the simplest possible case. Write down what Oleylamine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Oleylamine 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 Oleylamine 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 Oleylamine

In research: Oleylamine appears in science 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 Oleylamine 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: Oleylamine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Alkene derivatives, Amines, so understanding it makes those chapters shorter.
In everyday life: Look for Oleylamine 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 Oleylamine in 20 minutes

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

Frequently asked questions

What is Oleylamine in simple terms?

Oleylamine is an organic compound with a molecular formula C18H35NH2. It is an unsaturated fatty amine related to the fatty acid oleic acid.

Why does Oleylamine matter?

Because it connects several science 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 Oleylamine?

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 Oleylamine.