What does antimonic mean?
Antimonic is a technical adjective used in chemistry to describe compounds in which the metalloid antimony is present in its higher, +5 oxidation state. It pairs with its counterpart 'antimonious', which denotes antimony in the lower, +3 state; together the two terms distinguish the two principal families of antimony compounds. Classic examples include antimonic acid and the antimonic salts derived from it. The word derives from 'antimony', whose name traces back through medieval Latin 'antimonium' to earlier Arabic origins, and it entered English scientific vocabulary as chemists systematized the naming of metallic compounds. Today antimonic appears almost exclusively in inorganic chemistry texts, mineralogy, and industrial contexts involving flame retardants, alloys, and semiconductors, where general readers are far more likely to meet the plain noun 'antimony' than this specialized adjective.
adjectiveRelating to or containing antimony in its higher (+5) oxidation state; used chiefly of compounds such as antimonic acid and its salts.
- Of or relating to antimony in its +5 (pentavalent) oxidation state, as in antimonic acid and antimonic salts.
"The chemist prepared an antimonic salt by oxidizing antimony in concentrated nitric acid."
"Hydrated antimonic acid was precipitated when the pentavalent antimony solution was treated with water."
"The ore was roasted to convert the antimonious compounds into antimonic oxides."
The same element gives chemistry two opposite-sounding adjectives — antimonic and antimonious — and which one you get depends entirely on how many electrons antimony is willing to share.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of antimonic
Antimonic comes from 'antimony', the name of the chemical element, which passed into English via medieval Latin 'antimonium'; the ultimate origin lies in Arabic alchemical terminology, though the exact path remains debated among scholars. The suffix '-ic' follows the classical chemical convention of pairing '-ous' and '-ic' forms to distinguish lower and higher oxidation states, so 'antimonic' denotes Sb(V) while 'antimonious' denotes Sb(III). Cognates include 'antimonial' and 'antimonious', all built on the same element name.
How antimonic is actually used
A technical term confined almost entirely to inorganic chemistry and mineralogy; it is rarely encountered outside scientific literature. In modern usage chemists more often speak simply of 'Sb(V)' or 'pentavalent antimony' than of 'antimonic' compounds.
Easily confused with antimonic
Antimonious refers to antimony in its lower (+3) oxidation state, whereas antimonic refers to the higher (+5) state.