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Octachloropropane

October 25, 2023

Octachloropropane or perchloropropane is the chemical compound with elemental formula C3Cl8 and structural formula Cl3C−CCl2−CCl3. Its molecule has a simple chain of three carbon atoms connected by single bonds, with chlorine atoms filling their remaining bonds. It is a chlorocarbon, specifically the third simplest perchloroalkane (after carbon tetrachloride and hexachloroethane). It can be described as a derivative of propane C3H8, with all hydrogen atoms replaced by chlorine.

Octachloropropane
Names
Preferred IUPAC name
Octachloropropane
Other names
Propane octachloride, Perchloropropane
Identifiers
  • 594-90-1 Y
3D model (JSmol)
  • Interactive image
ChemSpider
  • 11188 Y
  • 11678
  • DTXSID10208131
  • InChI=1S/C3Cl8/c4-1(5,2(6,7)8)3(9,10)11
    Key: QQAHAGNPDBPSJP-UHFFFAOYSA-N
  • C(C(Cl)(Cl)Cl)(C(Cl)(Cl)Cl)(Cl)Cl
Properties
C3Cl8
Molar mass 319.63 g·mol−1
Melting point 160 °C (320 °F; 433 K)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Octachloropropane is a clear white crystalline solid at room temperature, with hexagonal crystal structure. It is easily deformed by mechanical stress, without losing its crystal structure, like a metal.[2][3][1]

History Edit

Synthesis and characterization of octachloropropane was reported in 1875 by Krafft and Merz.[4] Its remarkable crystal growth and deformation properties were noted by McCrone in 1949.[5][6][7] Its use as a model for crystal deformation of minerals was pioneered by Win D. Means, Marc W. Jessel and others in the 1980s.[8][1]

Production Edit

Octachloropropane can be obtained by reacting partially chlorinated propane with iodine trichloride (as in the original synthesis by Krafft and Merz), or with chlorine at high pressure or with activation by light. The temperature must be close to but below 200 °C, since at higher temperatures further reaction with chlorine gives carbon tetrachloride and hexachloroethane instead.[4]

Chemistry Edit

Octachloropropane treated with aluminium in diethyl ether affords several unsaturated perchlorocarbons, by way of hexachloropropene (C3Cl6, Cl3C−CCl=CH2).[9] For instance,

C3Cl8 + 2/3 Al → 2/3 AlCl3 + C3Cl6
2 C3Cl6 + 4/3 Al → 4/3 AlCl3 + C6Cl8 (three isomers)
2 C3Cl6 + 2 Al → 2 AlCl3 + C6Cl6 (two isomers)

The products were identified as

α-C6Cl6: colorless, m. p. 148 °C.
β-C6Cl6: red, m. p. 155 °C

with conjectured structures CCl≡C−CCl=CCl−CCl=CCl2 or CCl2=CCl−C≡C−CCl=CCl2, and

α-C6Cl8: b. p. 105-110 °C at 0.1 torr.
β-C6Cl8: m. p. 71 °C.
γ-C6Cl8: m. p. 183 °C.

which were claimed to be cis/trans isomers and atropisomers of CCl2=CCl−CCl=CCl−CCl=CCl2 (octachloro(1,3,5)hexatriene).[9]

Applications Edit

Crystalline plasticity model Edit

Octacholopropane is used by geologists and metallurgists as a model to study the plastic deformation of crystalline minerals and rocks under stress. The large individual crystalline grains (0.1-1.0 mm diameter) are distinguishable with a polarized light microscope at moderate magnification, and generally retain their size and approximate aspect ratio as the material undergoes shear strain.[3][2][10] The grains will spontaneously arise from the quenched solid, in minutes or hours, even at room temperature.[1]

The material's flow driven by stress can be followed by embedding in it small amounts of fine inert particles, such as grit 1000 abrasives; the particles apparently do not affect the grain evolution and deformation.[3][2][10] Camphor (with rhombohedral crystal structure) was previously proposed for this use.[11]

Metal separation Edit

Octachlorpropane reacts with niobium pentoxide and tantalum pentoxide at atmospheric pressure yielding the corresponding chlorides. It also reacts with titanium dioxide, if the other two oxides are present. This reaction, followed with distillation of the titanium tetrachloride at about 225 °C, could be an effective way to remove TiO2 from mixtures of those oxides.[12]

Pesticide Edit

Octachloropropane has been commercialized as a snail killer with the brand name HRS-1622, although it was not found to be very effective.[13]

Octachloropropane was found to be highly toxic to larvae of the housefly, with an efficiency comparable to decachlorobutane and hexachlorobenzene (BHC). Unlike the latter, it is somewhat volatile and thus effective even without physical contact with the solid.[14]

Environmental concerns Edit

Octachloropropane was detected as a relatively minor item among dozens of highly chlorinated and perchlorinated hydrocarbons present as contaminants in the carbon tetrachloride produced from methanol by a plant in China,[15] and also in the condensed waste from etching aluminium films in an integrated circuit factory.[16]

See also Edit

References Edit

  1. ^ a b c d Paul D. Bons, Mark W. Jessel, Lynn Evans, Terence Barr, and Karl Stüwe (2001) "Modeling of anisotropic grain growth in minerals" Tectonic Modeling: A Volume in Honor of Hans Ramberg; Geological Society of America Memoir, volume 193. 276 pages. ISBN 9780813711935
  2. ^ a b c Mark W. Jessell and G. S. Lister (1991): "Strain localization behaviour in experimental shear zones". Pure and Applied Geophysics, volume 137, page 421–438. doi:10.1007/BF00879043
  3. ^ a b c Win D. Means and Jin-Han Ree (1988): "Seven types of subgrain boundaries in octachloropropane". Journal of Structural Geology, volume 10, issue 7, pages 765-770. doi:10.1016/0191-8141(88)90083-1
  4. ^ a b F. Asinger (196662): Paraffins: Chemistry and Technology. Revised English edition of German original published in 1956. 920 pages. ISBN 9781483146621
  5. ^ W. C. McCrone (1949): "Boundary migration and grain growth". Discussions of the Faraday Society, volume 5, pages 158-166.
  6. ^ W. C. McCrone and P. T. Cheng (1949): "Grain growth in octachloropropane". Journal of Applied Physics, volume 20, pages 230–231
  7. ^ P. A. Beck (1949): "Comments on grain growth in octachloropropane". Journal of Applied Physics, volume 20, page 231.
  8. ^ Win D. Means (1983): "Microstructure and micromotion in recrystallization flow of octachloropropane: A first look". Geologische Rundschau, volume 71, pages 511-528. doi:10.1007/BF01822080
  9. ^ a b A. Roedig (1948): "Über die Synthese einiger Polychlorpolyene und die Atropisomerie der Oktachlorhexatriene". Experientia, volume 4, pages 305–307 doi:10.1007/BF02164460
  10. ^ a b Mark Jessel (1996): "Analogue Modelling at the University at Albany, State University of New York" (1996): Online collection of videos created by Youngdo Park, Jin-Han Ree, and Win D. Means. Accessed on 2020-07-03.
  11. ^ J. L. Urai, F. J. Humphreys, and S. E. Burrows (1980): "In-situ studies of the deformation and dynamic recrystallization of rhombohedral camphor". Journal of Materials Science, volume 15, pages 1231–1240. doi:10.1007/BF00551812
  12. ^ R. H. Atkinson, Joseph Steigman, and C. F. Hiskey (1952): "Analytical chemistry of niobium and tantalum. Chlorination of titania and distillation separation from niobium and tantalum". Analytical Chemistry, volume 24, issue 3, pages 484–488. doi:10.1021/ac60063a013
  13. ^ E. A. Seiffer and H. F. Schoof (197): "Tests of 15 experimental molluscicides against Australorbis glabratus". Public Health Reports, volume 82, issue 9, pages 833–839. PMID 4963721 PMC 1920017
  14. ^ K. R. S. Ascher and Z. H. Levinsox (1954): "Chemicals affecting the preimaginal stages of the housefly. III. Contact toxicity for third stage larvae of some chlorinated hydrocarbons deposited on adsorbent surfaces.". Rivista di Parassitologia, Volume 15, issue 1, pages 57-61. ISSN 0035-6387
  15. ^ Lifei Zhang, Wenlong Yang, Linli Zhang, Xiaoxiu Li (2015): "Highly chlorinated unintentionally produced persistent organic pollutants generated during the methanol-based production of chlorinated methanes: A case study in China". Chemosphere, volume 133, pages 1-5. doi:10.1016/j.chemosphere.2015.02.044
  16. ^ Peggy Müller, Thomas Stock, Siegfried Bauer, and Ilona Wolff (2002): "Genotoxicological characterisation of complex mixtures: Genotoxic effects of a complex mixture of perhalogenated hydrocarbons". Mutation Research/Genetic Toxicology and Environmental Mutagenesis, volume 515, issues 1–2, pages 99-109 doi:10.1016/S1383-5718(02)00005-0
  17. ^ Stephen W. Tobey and Robert. West (1964): "Hexachlorocyclopropane". Journal of the American Chemical Society, volume 86, issue 1, pages 56–61. doi:10.1021/ja01055a014

October 25, 2023
octachloropropane, perchloropropane, chemical, compound, with, elemental, formula, c3cl8, structural, formula, cl3c, ccl2, ccl3, molecule, simple, chain, three, carbon, atoms, connected, single, bonds, with, chlorine, atoms, filling, their, remaining, bonds, c. Octachloropropane or perchloropropane is the chemical compound with elemental formula C3Cl8 and structural formula Cl3C CCl2 CCl3 Its molecule has a simple chain of three carbon atoms connected by single bonds with chlorine atoms filling their remaining bonds It is a chlorocarbon specifically the third simplest perchloroalkane after carbon tetrachloride and hexachloroethane It can be described as a derivative of propane C3H8 with all hydrogen atoms replaced by chlorine Octachloropropane NamesPreferred IUPAC name OctachloropropaneOther names Propane octachloride PerchloropropaneIdentifiersCAS Number 594 90 1 Y3D model JSmol Interactive imageChemSpider 11188 YPubChem CID 11678CompTox Dashboard EPA DTXSID10208131InChI InChI 1S C3Cl8 c4 1 5 2 6 7 8 3 9 10 11Key QQAHAGNPDBPSJP UHFFFAOYSA NSMILES C C Cl Cl Cl C Cl Cl Cl Cl ClPropertiesChemical formula C 3Cl 8Molar mass 319 63 g mol 1Melting point 160 C 320 F 433 K 1 Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references Octachloropropane is a clear white crystalline solid at room temperature with hexagonal crystal structure It is easily deformed by mechanical stress without losing its crystal structure like a metal 2 3 1 Contents 1 History 2 Production 3 Chemistry 4 Applications 4 1 Crystalline plasticity model 4 2 Metal separation 4 3 Pesticide 5 Environmental concerns 6 See also 7 ReferencesHistory EditSynthesis and characterization of octachloropropane was reported in 1875 by Krafft and Merz 4 Its remarkable crystal growth and deformation properties were noted by McCrone in 1949 5 6 7 Its use as a model for crystal deformation of minerals was pioneered by Win D Means Marc W Jessel and others in the 1980s 8 1 Production EditOctachloropropane can be obtained by reacting partially chlorinated propane with iodine trichloride as in the original synthesis by Krafft and Merz or with chlorine at high pressure or with activation by light The temperature must be close to but below 200 C since at higher temperatures further reaction with chlorine gives carbon tetrachloride and hexachloroethane instead 4 Chemistry EditOctachloropropane treated with aluminium in diethyl ether affords several unsaturated perchlorocarbons by way of hexachloropropene C3Cl6 Cl3C CCl CH2 9 For instance C3Cl8 2 3 Al 2 3 AlCl3 C3Cl6 2 C3Cl6 4 3 Al 4 3 AlCl3 C6Cl8 three isomers 2 C3Cl6 2 Al 2 AlCl3 C6Cl6 two isomers The products were identified as a C6Cl6 colorless m p 148 C b C6Cl6 red m p 155 Cwith conjectured structures CCl C CCl CCl CCl CCl2 or CCl2 CCl C C CCl CCl2 and a C6Cl8 b p 105 110 C at 0 1 torr b C6Cl8 m p 71 C g C6Cl8 m p 183 C which were claimed to be cis trans isomers and atropisomers of CCl2 CCl CCl CCl CCl CCl2 octachloro 1 3 5 hexatriene 9 Applications EditCrystalline plasticity model Edit Octacholopropane is used by geologists and metallurgists as a model to study the plastic deformation of crystalline minerals and rocks under stress The large individual crystalline grains 0 1 1 0 mm diameter are distinguishable with a polarized light microscope at moderate magnification and generally retain their size and approximate aspect ratio as the material undergoes shear strain 3 2 10 The grains will spontaneously arise from the quenched solid in minutes or hours even at room temperature 1 The material s flow driven by stress can be followed by embedding in it small amounts of fine inert particles such as grit 1000 abrasives the particles apparently do not affect the grain evolution and deformation 3 2 10 Camphor with rhombohedral crystal structure was previously proposed for this use 11 Metal separation Edit Octachlorpropane reacts with niobium pentoxide and tantalum pentoxide at atmospheric pressure yielding the corresponding chlorides It also reacts with titanium dioxide if the other two oxides are present This reaction followed with distillation of the titanium tetrachloride at about 225 C could be an effective way to remove TiO2 from mixtures of those oxides 12 Pesticide Edit Octachloropropane has been commercialized as a snail killer with the brand name HRS 1622 although it was not found to be very effective 13 Octachloropropane was found to be highly toxic to larvae of the housefly with an efficiency comparable to decachlorobutane and hexachlorobenzene BHC Unlike the latter it is somewhat volatile and thus effective even without physical contact with the solid 14 Environmental concerns EditOctachloropropane was detected as a relatively minor item among dozens of highly chlorinated and perchlorinated hydrocarbons present as contaminants in the carbon tetrachloride produced from methanol by a plant in China 15 and also in the condensed waste from etching aluminium films in an integrated circuit factory 16 See also EditHexachloroethane Octafluoropropane Hexachlorocyclopropane 17 References Edit a b c d Paul D Bons Mark W Jessel Lynn Evans Terence Barr and Karl Stuwe 2001 Modeling of anisotropic grain growth in minerals Tectonic Modeling A Volume in Honor of Hans Ramberg Geological Society of America Memoir volume 193 276 pages ISBN 9780813711935 a b c Mark W Jessell and G S Lister 1991 Strain localization behaviour in experimental shear zones Pure and Applied Geophysics volume 137 page 421 438 doi 10 1007 BF00879043 a b c Win D Means and Jin Han Ree 1988 Seven types of subgrain boundaries in octachloropropane Journal of Structural Geology volume 10 issue 7 pages 765 770 doi 10 1016 0191 8141 88 90083 1 a b F Asinger 196662 Paraffins Chemistry and Technology Revised English edition of German original published in 1956 920 pages ISBN 9781483146621 W C McCrone 1949 Boundary migration and grain growth Discussions of the Faraday Society volume 5 pages 158 166 W C McCrone and P T Cheng 1949 Grain growth in octachloropropane Journal of Applied Physics volume 20 pages 230 231 P A Beck 1949 Comments on grain growth in octachloropropane Journal of Applied Physics volume 20 page 231 Win D Means 1983 Microstructure and micromotion in recrystallization flow of octachloropropane A first look Geologische Rundschau volume 71 pages 511 528 doi 10 1007 BF01822080 a b A Roedig 1948 Uber die Synthese einiger Polychlorpolyene und die Atropisomerie der Oktachlorhexatriene Experientia volume 4 pages 305 307 doi 10 1007 BF02164460 a b Mark Jessel 1996 Analogue Modelling at the University at Albany State University of New York 1996 Online collection of videos created by Youngdo Park Jin Han Ree and Win D Means Accessed on 2020 07 03 J L Urai F J Humphreys and S E Burrows 1980 In situ studies of the deformation and dynamic recrystallization of rhombohedral camphor Journal of Materials Science volume 15 pages 1231 1240 doi 10 1007 BF00551812 R H Atkinson Joseph Steigman and C F Hiskey 1952 Analytical chemistry of niobium and tantalum Chlorination of titania and distillation separation from niobium and tantalum Analytical Chemistry volume 24 issue 3 pages 484 488 doi 10 1021 ac60063a013 E A Seiffer and H F Schoof 197 Tests of 15 experimental molluscicides against Australorbis glabratus Public Health Reports volume 82 issue 9 pages 833 839 PMID 4963721 PMC 1920017 K R S Ascher and Z H Levinsox 1954 Chemicals affecting the preimaginal stages of the housefly III Contact toxicity for third stage larvae of some chlorinated hydrocarbons deposited on adsorbent surfaces Rivista di Parassitologia Volume 15 issue 1 pages 57 61 ISSN 0035 6387 Lifei Zhang Wenlong Yang Linli Zhang Xiaoxiu Li 2015 Highly chlorinated unintentionally produced persistent organic pollutants generated during the methanol based production of chlorinated methanes A case study in China Chemosphere volume 133 pages 1 5 doi 10 1016 j chemosphere 2015 02 044 Peggy Muller Thomas Stock Siegfried Bauer and Ilona Wolff 2002 Genotoxicological characterisation of complex mixtures Genotoxic effects of a complex mixture of perhalogenated hydrocarbons Mutation Research Genetic Toxicology and Environmental Mutagenesis volume 515 issues 1 2 pages 99 109 doi 10 1016 S1383 5718 02 00005 0 Stephen W Tobey and Robert West 1964 Hexachlorocyclopropane Journal of the American Chemical Society volume 86 issue 1 pages 56 61 doi 10 1021 ja01055a014 Retrieved from https en wikipedia org w index php title Octachloropropane amp oldid 1179728328, wikipedia, wiki, book, books, library,

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