chemistry

Indium(III) telluride

Indium(III) telluride 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 Indium(III) telluride rather than just read about it. In short: Indium(III) telluride (In2Te3) is an inorganic compound. A black solid, it is sometimes described as an intermetallic compound, because it has properties that are metal-like and salt like.

Key takeaways

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

Reference excerpt

Indium(III) telluride (In2Te3) is an inorganic compound. A black solid, it is sometimes described as an intermetallic compound, because it has properties that are metal-like and salt like. It is a semiconductor that has attracted occasional interest for its thermoelectric and photovoltaic applications, similar to Silicon. No applications have been implemented commercially however.

Preparation and reactions A conventional route entails heating the elements in a seal-tube:

3Te + 2 In → In2Te3 Indium(III) telluride reacts with strong acids to produce hydrogen telluride.

Further reading Zhang, Qichun; Chung, In; Jang, Joon I.; Ketterson, John B.; Kanatzidis, Mercouri G. (2009). "A Polar and Chiral Indium Telluride Featuring Supertetrahedral T2 Clusters and Nonlinear Optical Second Harmonic Generation". Chemistry of Materials. 21: 12–14. doi:10.1021/cm8027516. Sutarno; Knop, Osvald; Reid, K.I.G. (1967). "Chalcogenides of the transition elements. V. Crystal structures of the disulfides and ditellurides of ruthenium and osmium". Canadian Journal of Chemistry. 45 (12): 1391–1400. doi:10.1139/v67-230. Jobic, S.; Brec, R.; Chateau, C.; Haines, J.; Léger, J.-M.; Koo, H.-J.; Whangbo, M.-H. (2000). "Synthesis and Crystal Structure Determination of a New Pressure-Induced Iridium Ditelluride Phase, m -IrTe2, and Comparison of the Crystal Structures and Relative Stabilities of Various IrTe2 Polymorphs". Inorganic Chemistry. 39 (19): 4370–4373. doi:10.1021/ic000351e. PMID 11196934.

References

Worked examples

Example 1 — a first encounter with Indium(III) telluride

Start with the simplest possible case. Write down what Indium(III) telluride 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 Indium(III) telluride 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 Indium(III) telluride 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 Indium(III) telluride

In research: Indium(III) telluride 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 Indium(III) telluride 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: Indium(III) telluride is common in secondary-school and first-year university syllabi. It links to neighbouring topics Indium compounds, Inorganic compound stubs, Semiconductor materials, so understanding it makes those chapters shorter.
In everyday life: Look for Indium(III) telluride 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 Indium(III) telluride in 20 minutes

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

Frequently asked questions

What is Indium(III) telluride in simple terms?

Indium(III) telluride (In2Te3) is an inorganic compound. A black solid, it is sometimes described as an intermetallic compound, because it has properties that are metal-like and salt like.

Why does Indium(III) telluride 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 Indium(III) telluride?

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 Indium(III) telluride.