Antimony pentoxide has the same structure as the B form of niobium pentoxide and can be derived from the rutile structure, with antimony coordinated by six oxygen atoms in a distorted octahedral arrangement. The SbO6 octahedra are corner- and edge-sharing.[2]
Antimony pentoxide finds use as a flame retardant in ABS and other plastics and as a flocculant in the production of titanium dioxide, and is sometimes used in the production of glass, paint and adhesives.[4][5]
The hydrated oxide is insoluble in nitric acid, but dissolves in a concentrated potassium hydroxide solution to give potassium hexahydroxoantimonate(V), or KSb(OH)6.[6]
When heated to 700 °C (1,290 °F), the yellow hydrated pentoxide converts to an anhydrous white solid with the formula Sb6O13, containing both antimony(III) and antimony(V). Heating to 900 °C (1,650 °F) produces a white, insoluble powder of Sb2O4 in both α and β forms. The β form consists of antimony(V) in octahedral interstices and pyramidal SbIIIO4 units. In these compounds, the antimony(V) atom is octahedrally coordinated to six hydroxy groups.
^M. Jansen (March 1979). "Die Kristallstruktur von Antimon(V)-oxid". Acta Crystallogr. B. 35 (3): 539–542. Bibcode:1979AcCrB..35..539J. doi:10.1107/S056774087900409X.
^Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN0-07-049439-8
^Bartlett, Jeffrey (1997-03-19). "Colloidal Antimony Pentoxide in Flame Retarded ABS". Nyacol Products, Inc. from the original on 3 August 2006. Retrieved 2006-07-28.
^"ANTIMONY PENTOXIDE". chemicalLAND21.com. from the original on 27 August 2006. Retrieved 2006-07-28.
^Pradyot Patnaik (2002). Handbook of Inorganic Chemicals. McGraw-Hill. p. 54. ISBN0-07-049439-8.
^"Antimony" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 606.
March 14, 2024
antimony, pentoxide, molecular, formula, sb2o5, chemical, compound, antimony, oxygen, contains, antimony, oxidation, state, namesiupac, name, dioxo, stibanyl, dioxo, stibaneother, names, antimony, oxideidentifierscas, number, 1314, model, jsmol, interactive, i. Antimony pentoxide molecular formula Sb2O5 is a chemical compound of antimony and oxygen It contains antimony in the 5 oxidation state Antimony pentoxide NamesIUPAC name dioxo l5 stibanyl oxy dioxo l5 stibaneOther names antimony V oxideIdentifiersCAS Number 1314 60 9 Y3D model JSmol Interactive imageChemSpider 14129 YECHA InfoCard 100 013 853EC Number 215 237 7PubChem CID 14813UNII 756OCG058B YCompTox Dashboard EPA DTXSID6050467InChI InChI 1S 5O 2Sb YKey LJCFOYOSGPHIOO UHFFFAOYSA N YInChI 1 5O 2Sb rO5Sb2 c1 6 2 5 7 3 4Key LJCFOYOSGPHIOO YOUOZQPQACSMILES O Sb O O Sb O OPropertiesChemical formula Sb2O5Molar mass 323 517 g molAppearance yellow powdery solidDensity 3 78 g cm3 solidMelting point 380 C 716 F 653 K decomposes Solubility in water 0 3 g 100 mLSolubility insoluble in nitric acidStructureCrystal structure cubicThermochemistryHeat capacity C 117 69 J mol KStd enthalpy offormation DfH 298 1008 18 kJ molHazardsGHS labelling PictogramsSignal word DangerHazard statements H302 H315 H319 H335 H411Precautionary statements P261 P264 P270 P271 P273 P280 P301 P312 P302 P352 P304 P340 P305 P351 P338 P312 P321 P330 P332 P313 P337 P313 P362 P391 P403 P233 P405 P501NFPA 704 fire diamond 301OXNIOSH US health exposure limits PEL Permissible TWA 0 5 mg m3 as Sb 1 REL Recommended TWA 0 5 mg m3 as Sb 1 Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa N verify what is Y N Infobox references Contents 1 Structure 2 Preparation 3 Uses 4 Properties and reactions 5 ReferencesStructure editAntimony pentoxide has the same structure as the B form of niobium pentoxide and can be derived from the rutile structure with antimony coordinated by six oxygen atoms in a distorted octahedral arrangement The SbO6 octahedra are corner and edge sharing 2 nbsp nbsp nbsp Sb coordination edge sharing corner sharingPreparation editThe hydrated oxide is prepared by hydrolysis of antimony pentachloride or by acidification of potassium hexahydroxoantimonate V It may also be prepared by oxidation of antimony trioxide with nitric acid 3 Uses editAntimony pentoxide finds use as a flame retardant in ABS and other plastics and as a flocculant in the production of titanium dioxide and is sometimes used in the production of glass paint and adhesives 4 5 It is also used as an ion exchange resin for a number of cations in acidic solution including Na especially for their selective retentions and as a polymerization and oxidation catalyst Properties and reactions editThe hydrated oxide is insoluble in nitric acid but dissolves in a concentrated potassium hydroxide solution to give potassium hexahydroxoantimonate V or KSb OH 6 6 When heated to 700 C 1 290 F the yellow hydrated pentoxide converts to an anhydrous white solid with the formula Sb6O13 containing both antimony III and antimony V Heating to 900 C 1 650 F produces a white insoluble powder of Sb2O4 in both a and b forms The b form consists of antimony V in octahedral interstices and pyramidal SbIIIO4 units In these compounds the antimony V atom is octahedrally coordinated to six hydroxy groups The pentoxide can be reduced to antimony metal by heating with hydrogen or potassium cyanide 7 References edit a b NIOSH Pocket Guide to Chemical Hazards 0036 National Institute for Occupational Safety and Health NIOSH M Jansen March 1979 Die Kristallstruktur von Antimon V oxid Acta Crystallogr B 35 3 539 542 Bibcode 1979AcCrB 35 539J doi 10 1107 S056774087900409X Pradyot Patnaik Handbook of Inorganic Chemicals McGraw Hill 2002 ISBN 0 07 049439 8 Bartlett Jeffrey 1997 03 19 Colloidal Antimony Pentoxide in Flame Retarded ABS Nyacol Products Inc Archived from the original on 3 August 2006 Retrieved 2006 07 28 ANTIMONY PENTOXIDE chemicalLAND21 com Archived from the original on 27 August 2006 Retrieved 2006 07 28 Pradyot Patnaik 2002 Handbook of Inorganic Chemicals McGraw Hill p 54 ISBN 0 07 049439 8 Antimony in Handbook of Preparative Inorganic Chemistry 2nd Ed Edited by G Brauer Academic Press 1963 NY Vol 1 p 606 Retrieved from https en wikipedia org w index php title Antimony pentoxide amp oldid 1197677980, wikipedia, wiki, book, books, library,
