chemistry

Glycolonitrile

Glycolonitrile 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 Glycolonitrile rather than just read about it. In short: Glycolonitrile, also called hydroxyacetonitrile or formaldehyde cyanohydrin, is the organic compound with the structure HOCH2CN. It is the simplest cyanohydrin, being derived from formaldehyde.

Key takeaways

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

Reference excerpt

Glycolonitrile, also called hydroxyacetonitrile or formaldehyde cyanohydrin, is the organic compound with the structure HOCH2CN. It is the simplest cyanohydrin, being derived from formaldehyde. It is a colourless liquid that dissolves in water and ether, and is useful in production of several industrially important chemicals. Because glycolonitrile decomposes readily into formaldehyde and hydrogen cyanide, it is listed as an extremely hazardous substance. In January 2019, astronomers reported the detection of glycolonitrile, another possible building block of life among other such molecules, in outer space.

Synthesis and reactions Glycolonitrile is produced by combining formaldehyde with hydrogen cyanide at near-neutral pH. The reaction is catalyzed by base. Glycolonitrile polymerizes under alkaline conditions. Glycolonitrile can react with ammonia to give aminoacetonitrile, which can be hydrolyzed to give glycine. The general process for reaction of an aldehyde, hydrogen cyanide, and ammonia, followed by hydrolysis, to give an amino acid is the industrially important Strecker amino acid synthesis:

HOCH2CN + NH3 → H2NCH2CN + H2O H2NCH2CN + 2 H2O → H2NCH2CO2H + NH3 Ethylenediaminetetraacetic acid widely used as a chelating agent, can be prepared from glycolonitrile and ethylenediamine followed by hydrolysis of the resulting tetranitrile. Nitrilotriacetic acid is prepared similarly.

Reactivity

Glycolonitrile rapidly forms various dimers, trimers, and higher oligomers in alkaline solution.

References

Illustrations

Worked examples

Example 1 — a first encounter with Glycolonitrile

Start with the simplest possible case. Write down what Glycolonitrile 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 Glycolonitrile 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 Glycolonitrile 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 Glycolonitrile

In research: Glycolonitrile 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 Glycolonitrile 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: Glycolonitrile is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cyanohydrins, Organic compounds with 2 carbon atoms, so understanding it makes those chapters shorter.
In everyday life: Look for Glycolonitrile 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 Glycolonitrile in 20 minutes

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

Frequently asked questions

What is Glycolonitrile in simple terms?

Glycolonitrile, also called hydroxyacetonitrile or formaldehyde cyanohydrin, is the organic compound with the structure HOCH2CN. It is the simplest cyanohydrin, being derived from formaldehyde.

Why does Glycolonitrile 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 Glycolonitrile?

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 Glycolonitrile.