chemistry

Titanium trisulfide

Titanium trisulfide 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 Titanium trisulfide rather than just read about it. In short: Titanium trisulfide (TiS3) is an inorganic chemical compound of titanium and sulfur. Its formula unit contains one Ti4+ cation, one S2− anion and one S22−.

Key takeaways

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

Reference excerpt

Titanium trisulfide (TiS3) is an inorganic chemical compound of titanium and sulfur. Its formula unit contains one Ti4+ cation, one S2− anion and one S22−. TiS3 has a layered crystal structure, where the layers are weakly bonded to each other and can be exfoliated with an adhesive tape. The exfoliated layers have potential applications in ultrathin field-effect transistors.

Synthesis Millimeter-long crystalline whiskers of TiS3 can be grown by chemical vapor transport at ca. 500 °C, using excess sulfur as the transporting gas.

Properties

TiS3 is an n-type semiconductor with an indirect bandgap of about 1 eV. Its individual layers are made of TiS atomic chains; hence they are anisotropic and their properties depend on the in-plane orientation. For example, in the same sample, electron mobility can be 80 cm2/(V·s) along the b-axis and 40 cm2/(V·s) along the a-axis.

References

Illustrations

Titanium trisulfide: Transmission electron micrograph of TiS3 revealing its layered structure — Transmission electron micrograph of TiS3 revealing its layered structure

Worked examples

Example 1 — a first encounter with Titanium trisulfide

Start with the simplest possible case. Write down what Titanium trisulfide 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 Titanium trisulfide 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 Titanium trisulfide 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 Titanium trisulfide

In research: Titanium trisulfide 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 Titanium trisulfide 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: Titanium trisulfide is common in secondary-school and first-year university syllabi. It links to neighbouring topics Monolayers, Sulfides, Titanium(IV) compounds, so understanding it makes those chapters shorter.
In everyday life: Look for Titanium trisulfide 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Titanium trisulfide in 20 minutes

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

Frequently asked questions

What is Titanium trisulfide in simple terms?

Titanium trisulfide (TiS3) is an inorganic chemical compound of titanium and sulfur. Its formula unit contains one Ti4+ cation, one S2− anion and one S22−.

Why does Titanium trisulfide 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 Titanium trisulfide?

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 Titanium trisulfide.