zinc sulphide
Definition
Noun: 1. A yellow to white crystalline fluorescent compound: Zinc sulphide is an inorganic chemical compound with the formula ZnS. It is a solid material that can appear in colors ranging from yellow to white and possesses the property of fluorescence, meaning it can emit light when exposed to certain types of radiation. 2. A naturally occurring mineral: It is found in nature primarily in two crystalline forms: as the mineral sphalerite (or zinc blende) and as wurtzite. 3. An industrial material used as a pigment: Due to its luminescent properties, it is manufactured for use as a luminous pigment in various applications such as paints, coatings, and electronic components.
Examples of Usage
- is a key material in the production of cathode-ray tubes and electroluminescent panels.
- The glow-in-the-dark paint contained as its active phosphor.
- Geologists identified the ore as in its sphalerite form.
Advanced Usage
- In scientific contexts: The term is used precisely in chemistry, geology, and materials science to refer to the compound ZnS, discussing its structure, synthesis, or optical properties.
- The study focused on the photocatalytic activity of doped zinc sulphide nanoparticles.
Variants and Related Words
- Zinc sulfide: The American English spelling variant.
- ZnS: The standard chemical formula abbreviation.
- Sphalerite: The most common natural mineral form of zinc sulphide, an important source of zinc.
- Wurtzite: A less common, high-temperature polymorph of zinc sulphide.
- Phosphor: A broader category of substances that exhibit luminescence, of which zinc sulphide is a classic example.
Synonyms
- Blende (specifically "zinc blende", an older name for sphalerite)
- Luminous pigment (when referring to its functional use)
Related Phrases
- Zinc sulphide screen: A specific application where a thin layer of the compound is used to detect particles or radiation, as in some early radiation detectors.
- Alpha particle scintillation was first observed on a zinc sulphide screen.
Noun
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a yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment
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