Selenous acid
Selenous Acid
Selenous Acid (pronunciation: /sɪˈliːnəs ˈæsɪd/), also known as selenious acid, is a chemical compound with the formula H2SeO3. It is an oxoacid of selenium, and its structure is more accurately described as (HO)2SeO2.
Etymology
The term "Selenous" is derived from the Greek word "Selene" (Σελήνη), which means moon. The element selenium was named after Selene, the Greek goddess of the moon, due to its similarity to the previously discovered element tellurium, which was named for the Earth.
Properties and Uses
Selenous acid is a colorless, crystalline solid that is soluble in water. It is a weak acid that is used in the preparation of other selenium compounds. It is also used as a reagent in certain chemical reactions.
Health Effects
Exposure to selenous acid can cause respiratory and eye irritation. Ingestion can lead to selenium poisoning, which can cause symptoms such as nausea, vomiting, and abdominal pain.
Related Terms
- Selenium: A chemical element with the symbol Se and atomic number 34.
- Oxoacid: A type of acid that contains oxygen.
- Selenite: A type of mineral that contains selenous acid.
- Selenate: A compound similar to selenous acid, but with selenium in a higher oxidation state.
External links
- Medical encyclopedia article on Selenous acid
- Wikipedia's article - Selenous acid
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