chemistry

Sodium salicylate

Sodium salicylate 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 Sodium salicylate rather than just read about it. In short: Sodium salicylate is a sodium salt of salicylic acid. It is a shiny white solid, producing mildly alkaline solutions because it can donate one hydrogen-bond and accept three.

Key takeaways

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

Reference excerpt

Sodium salicylate is a sodium salt of salicylic acid. It is a shiny white solid, producing mildly alkaline solutions because it can donate one hydrogen-bond and accept three.

Synthesis Sodium salicylate is industrially prepared via the Kolbe-Schmitt process, by reacting sodium phenoxide with carbon dioxide at around 120 °C and 5 atm in a mixed alcohol solvent containing excess phenol.

C 6 H 5 O − Na + + CO 2 ⟶ HOC 6 H 4 COO − Na + {\displaystyle {\ce {C6H5O- Na+ + CO2 -> HOC6H4COO- Na+}}}

This reaction proceeds via a nucleophilic addition-elimination mechanism. Sodium salicylate can also be prepared by neutralizing salicylic acid with a sodium base such as sodium hydroxide or sodium carbonate or by refluxing methyl salicylate with sodium hydroxide.

Uses

Medicine It is used in medicine as an analgesic and antipyretic. Sodium salicylate also acts as non-steroidal anti-inflammatory drug (NSAID), and induces apoptosis in cancer cells and also necrosis. It is a potential replacement for aspirin for people sensitive to it. Sodium salicylate lends its analgesic effects to the inhibition of cyclooxygenase. This enzyme converts arachidonic acid to cyclic endoperoxides, which are precursors to prostaglandins, thus preventing the sensitization of pain receptors. Sodium salicylate, alongside other salicylates, has historically been used to treat rheumatological disorders.

Preservative Sodium salicylate can be found in cosmetics, personal care products, perfumes, and fragrances, often as a preservative. Among 16 other salicylate salts in these products, it has been concluded to be safe.

Other It may also be used as a phosphor for the detection of vacuum ultraviolet radiation and beta radiation.

References

External links

Synonyms Safety data for sodium salicylate at Oxford University Archived 2006-05-23 at the Wayback Machine Sodium salicylate, definitions at National Cancer Institute

Illustrations

Worked examples

Example 1 — a first encounter with Sodium salicylate

Start with the simplest possible case. Write down what Sodium salicylate 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 Sodium salicylate 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 Sodium salicylate 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 Sodium salicylate

In research: Sodium salicylate 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 Sodium salicylate 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: Sodium salicylate is common in secondary-school and first-year university syllabi. It links to neighbouring topics 3-Hydroxypropenals, Organic sodium salts, Salicylates, so understanding it makes those chapters shorter.
In everyday life: Look for Sodium salicylate 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 Sodium salicylate in 20 minutes

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

Frequently asked questions

What is Sodium salicylate in simple terms?

Sodium salicylate is a sodium salt of salicylic acid. It is a shiny white solid, producing mildly alkaline solutions because it can donate one hydrogen-bond and accept three.

Why does Sodium salicylate 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 Sodium salicylate?

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 Sodium salicylate.