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Home >> Inorganic Chemistry Dictionary >> Antimonic - Apatite
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Antimonate
the negative radical [Sb(OH)6] – in salts derived from antimony pentoxide, Sb4O10 and bases.
Antimony (V) oxide
(antimony pentoxide, Sb2O5) A yellow solid which is prepared by the action of concentrated nitric acid on antimony or by the hydrolysis of antimony (V) chloride. Although an acidic oxide, it is only slightly soluble in water.
Antimonic
derived from or pertaining to pentavalent antimony
Antimony (V) chloride, (SbCI5)
a colourless liquid which acts as a strong chlorinating agent.
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Antimonide
a binary compound of antimony with a more positive compound, for example, H3Sb. Also known as stibide.
Antimony
a toxic element which exists in two allotropic forms; the most stable is a brittle silvery metal. Arsenic belongs to group V of the periodic table. It occurs in many minerals, principally stibinite (Sb2S3). It is used in alloys and semiconductor devices.
Symbol: sb; m.p. 630.7˚C; b.p. 1640˚C; r.d. 6.69; p.n. 51; r.a.m. 121.7.
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Antimony (III) chloride (SbCI3)
a white soft solid. It is very deliquescent and is hydrolysed by water to give a precipitate of the oxychloride.
Antimony (III) fluoride
a solid having m.p. 292˚C. It is mainly used as mild fluorinating agent.
Antimony (III) oxide
Sb2O3, colorless, rhombic crystals, melting at 656˚C; insoluble in water; powerful reducing agent.
Antimous
designating an antimony compound.
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Antimony pentachloride
SbCI5, a reddish yellow, oily liquid; hygroscopic, it solidifies after moisture is absorbed and decomposes in excess water; soluble in hydrochloric acid and chloroform; used in analytical testing for cesium and alkaloids, for dyeing, and as an intermediary in synthesis. Also known as antimony perchloride.
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Antimony pentafluoride
SbF5, a corrosive, hygroscopic, moderately viscous fluid; reacts violently with water; forms a clear solution with glacial acetic acid; used in the fluorination of organic compounds.
Antimony pentasulphide
Sb2S5, an orange-yellow powder; soluble in alkali, soluble in concentrated hydrochloric acid, with hydrogen sulphide as a by-product, and insoluble in water; used as a red pigment. Also known as antimony persulphide; antimony red; golden antimony sulfide. antimony sulphate [Sb2(SO4)3] a white crystalline insoluble solid. It is used in explosives.
Antimony pentafluoride
SbF5, a corrosive, hygroscopic, moderately viscous fluid; reacts violently with water; forms a clear solution with glacial acetic acid; used in the fluorination of organic compounds.
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Antimony pentasulphide
Sb2S5, an orange-yellow powder; soluble in alkali, soluble in concentrated hydrochloric acid, with hydrogen sulphide as a by-product, and insoluble in water; used as a red pigment. Also known as antimony persulphide; antimony red; golden antimony sulfide. antimony sulphate [Sb2(SO4)3] a white crystalline insoluble solid. It is used in explosives.
Antimony trichloride
SbCI3, a hygroscopic, colourless, crystalline mass; fumes slightly in air, is soluble in alcohol and acetone, and forms antimony oxychloride in water; used as a mordant, as a chlorinating agent, and in fireproofing textiles. Also known as antimonous chloride; antimony chloride, caustic antimony.
Antimony trisulphide
Sb2S3, black and orange-red rhombic crystals; soluble in concentrated hydrochloric acid and sulphide solutions, insoluble in water; melting point 546˚C; used as a pigment, and in matches and pyrotechnics. Also known as antimonous sulphide; antimony black; antimony sulphide; black antimony.
Apatite
Ca5 (PO4)3 F, a phosphate mineral containing fluoride and phosphate anions. Used for the production of phosphorus and its compounds including superphosphates. Hydroxyapatite, Ca5(OH)(PO4)3 is iso-structural with apatite. These compounds are of importance as components of teeth. The mineral contains useful quantities of uranium.
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