The term "pentahydrate of Sodium Selenite" refers to a compound composed of sodium selenite along with five molecules of water. Synonyms for this chemical often exist to simplify its identification or description. One potential synonym for this compound is "sodium selenite pentahydrate", highlighting the presence of five water molecules. Another synonym could be "Na2SeO3·5H2O", using its chemical formula to differentiate it from other forms of sodium selenite. Lastly, it may also be referred to as "selenium (IV) oxide pentahydrate", emphasizing the oxidation state of selenium in the compound. These synonyms aid in effective communication within scientific and chemical contexts.