LANTHANUM CHLORIDE Meaning and
Definition
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Lanthanum chloride is a chemical compound with the formula LaCl3. It belongs to the group of lanthanide elements, which are a series of metallic elements found in the periodic table. Lanthanum chloride specifically contains the lanthanum ion (La3+) and the chloride ion (Cl-).
In its solid form, lanthanum chloride appears as a white, crystalline powder. It is highly soluble in water, forming a pale yellow or colorless aqueous solution. Lanthanum chloride is considered a strong Lewis acid, meaning it can accept pairs of electrons from other molecules. It also has a high affinity for water molecules, easily absorbing moisture from the air, and it is deliquescent.
Lanthanum chloride has various applications in different industries. For instance, it is commonly used as a catalyst in chemical reactions, particularly in organic synthesis. It can also be employed in the production of pharmaceuticals and in the preparation of other lanthanum compounds. In addition, lanthanum chloride finds use in scientific research and analysis, serving as a spectrophotometric reagent for the detection and quantification of various elements and compounds.
Although lanthanum chloride is generally considered safe, it should be handled with care due to its corrosive nature. Inhalation of its dust or vapors, as well as direct contact with the skin or eyes, should be avoided. Proper protective measures, such as gloves and goggles, should be worn when working with this substance.
Etymology of LANTHANUM CHLORIDE
The word "lanthanum" comes from the Greek word "lanthanein", meaning "to lie hidden". This name was given to the element because it was initially difficult to separate from other rare earth elements.
"Chloride" comes from the Greek word "chlōros", which means "greenish-yellow". Chloride refers to a compound that contains chlorine. Chlorine has a greenish-yellow color in its gaseous state.
