chemistry

Phenylmercury acetate

Phenylmercury acetate 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 Phenylmercury acetate rather than just read about it. In short: Phenylmercuric acetate is an organomercury compound with the chemical formula CH3CO2HgC6H5. It was used as a preservative, disinfectant, antitranspirant, and catalyst.

Key takeaways

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

Reference excerpt

Phenylmercuric acetate is an organomercury compound with the chemical formula CH3CO2HgC6H5. It was used as a preservative, disinfectant, antitranspirant, and catalyst.

Properties Phenylmercuric acetate forms colorless, lustrous crystals, and is soluble in ethanol, benzene, acetic acid, and sparingly in water.

Applications Phenylmercuric acetate has been used as a preservative in eyedrops and paint, disinfectant, former fungicide in agriculture, and a potential fungicide in leather processing. It kills crabgrass, the seedlings of which are especially vulnerable, but leaves most lawn grasses intact. It exhibits anti-fungal activity against a broad range of ocular pathogenic fungi, with the greatest activity against Fusarium sporotrichioides, and has been investigated as a potential treatment for keratomycosis. Phenylmercuric acetate was used for disinfecting mucous membranes but, due to toxicological and ecotoxicological reasons, is no longer used. Phenylmercuric acetate was used as a catalyst in the manufacture of polyurethane flexible flooring, including 3M Tartan track. That flooring became popular for public buildings, especially school gymnasia, in the 1950s through the 1970s; and traces of the catalyst remained detectable in Idaho public schools as late as 2006.

Hazards Contact with phenylmercuric acetate can cause allergic reactions, such as erythema and contact urticaria syndrome. IgE plays a crucial role in contact urticaria syndrome pathogenesis. A rare side effect of phenylmercuric acetate in eye drops is mercurialentis, the buildup of pigment on the anterior capsule of the lens. This has been estimated to affect 18 of 500 patients who have used eye drops containing phenylmercuric acetate two to four times a day for more than six years. The pigmentation is not associated with visual impairment nor any ocular abnormalities.

See also Phenylmercuric borate Phenylmercuric nitrate

References

Illustrations

Worked examples

Example 1 — a first encounter with Phenylmercury acetate

Start with the simplest possible case. Write down what Phenylmercury acetate 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 Phenylmercury acetate 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 Phenylmercury acetate 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 Phenylmercury acetate

In research: Phenylmercury acetate 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 Phenylmercury acetate 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: Phenylmercury acetate is common in secondary-school and first-year university syllabi. It links to neighbouring topics Organomercury compounds, Phenyl compounds, so understanding it makes those chapters shorter.
In everyday life: Look for Phenylmercury acetate 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 Phenylmercury acetate in 20 minutes

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

Frequently asked questions

What is Phenylmercury acetate in simple terms?

Phenylmercuric acetate is an organomercury compound with the chemical formula CH3CO2HgC6H5. It was used as a preservative, disinfectant, antitranspirant, and catalyst.

Why does Phenylmercury acetate 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 Phenylmercury acetate?

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 Phenylmercury acetate.