Does Ccl4 Dissolve In Water
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| Names | |||
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| Preferred IUPAC proper noun Tetrachloromethane | |||
| Other names Benziform | |||
| Identifiers | |||
| CAS Number |
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| 3D model (JSmol) |
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| Beilstein Reference | 1098295 | ||
| ChEBI |
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| ChEMBL |
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| ChemSpider |
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| ECHA InfoCard | 100.000.239 | ||
| EC Number |
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| Gmelin Reference | 2347 | ||
| KEGG |
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| PubChem CID |
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| RTECS number |
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| UNII |
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| United nations number | 1846 | ||
| CompTox Dashboard (EPA) |
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| InChI
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| SMILES
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| Properties | |||
| Chemic formula | C Cl 4 | ||
| Tooth mass | 153.81 thousand/mol | ||
| Advent | Colourless liquid | ||
| Odor | Sugariness, chloroform-similar odor | ||
| Density |
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| Melting point | −22.92 °C (−9.26 °F; 250.23 K) | ||
| Boiling signal | 76.72 °C (170.x °F; 349.87 Grand) | ||
| Solubility in water |
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| Solubility | Soluble in alcohol, ether, chloroform, benzene, naphtha, CS2, formic acrid | ||
| log P | 2.64 | ||
| Vapor pressure level | 11.94kPa at 20°C | ||
| Henry's constabulary | 2.76×10−2 atm·m3/mol | ||
| Magnetic susceptibility (χ) | −66.60×x−6 cm3/mol | ||
| Thermal electrical conductivity | 0.1036West/k·Thou (300Thousand)[2] | ||
| Refractive index (north D) | 1.4607 | ||
| Viscosity | 0.86mPa·s[3] | ||
| Dipole moment | 0 D | ||
| Construction | |||
| Crystal structure | Monoclinic | ||
| Coordination geometry | Tetragonal | ||
| Molecular shape | Tetrahedral | ||
| Dipole moment | 0D | ||
| Thermochemistry | |||
| Heat chapters (C) | 132.6J/mol·K | ||
| Std molar | 214.39J/mol·K | ||
| Std enthalpy of | −95.sixkJ/mol | ||
| Gibbs free energy (Δf Thou ⦵) | −87.34kJ/mol[four] | ||
| Hazards | |||
| Occupational rubber and health (OHS/OSH): | |||
| Master hazards | potential occupational carcinogen | ||
| GHS labelling: | |||
| Pictograms | | ||
| Signal word | Danger | ||
| Run a risk statements | H301, H302, H311, H331, H351, H372, H412, H420 | ||
| Precautionary statements | P201, P202, P260, P261, P264, P270, P271, P273, P280, P281, P301+P310, P302+P352, P304+P340, P308+P313, P311, P312, P314, P321, P322, P330, P361, P363, P403+P233, P405, P501, P502 | ||
| NFPA 704 (fire diamond) | 3 0 0 | ||
| Wink indicate | Non-flammable | ||
| Lethal dose or concentration (LD, LC): | |||
| LD50 (median dose) | 250mg/kg | ||
| LC50 (median concentration) |
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| LCLo (lowest published) |
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| NIOSH (US health exposure limits): | |||
| PEL (Permissible) | TWA tenppm C 25ppm 200ppm (five-minute maximum tiptop in whatsoever iv hours)[5] | ||
| REL (Recommended) | Ca ST 2ppm (12.half-dozenmg/m3) [lx-infinitesimal][5] | ||
| IDLH (Firsthand danger) | 200ppm[5] | ||
| Safety data sheet (SDS) | ICSC 0024 | ||
| Related compounds | |||
| Other anions | Carbon tetrafluoride Carbon tetrabromide Carbon tetraiodide | ||
| Other cations | Silicon tetrachloride Germanium tetrachloride Tin tetrachloride Lead tetrachloride | ||
| Related chloromethanes | Chloromethane Dichloromethane Chloroform | ||
| Supplementary information page | |||
| Carbon tetrachloride (data page) | |||
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |||
Carbon tetrachloride, also known past many other names (such as tetrachloromethane, too recognised past the IUPAC, carbon tet in the cleaning industry, Halon-104 in firefighting, and Refrigerant-10 in HVACR) is an organic chemical compound with the chemical formula CCl4. It is a colourless liquid with a "sweet" smell that can be detected at low levels. It is practically incombustible at lower temperatures. It was formerly widely used in fire extinguishers, every bit a precursor to refrigerants and as a cleaning agent, but has since been phased out because of environmental and safety concerns. Exposure to high concentrations of carbon tetrachloride (including vapor) tin can bear upon the central nervous system and degenerate the liver and kidneys. Prolonged exposure can exist fatal.
Properties [edit]
In the carbon tetrachloride molecule, 4 chlorine atoms are positioned symmetrically as corners in a tetrahedral configuration joined to a cardinal carbon atom by unmarried covalent bonds. Considering of this symmetric geometry, CCl4 is not-polar. Marsh gas gas has the aforementioned construction, making carbon tetrachloride a halomethane. As a solvent, it is well suited to dissolving other non-polar compounds such equally fats and oils. It can also dissolve iodine. Information technology is somewhat volatile, giving off vapors with a smell characteristic of other chlorinated solvents, somewhat similar to the tetrachloroethylene smell reminiscent of dry out cleaners' shops.
Solid tetrachloromethane has two polymorphs: crystalline 2 below −47.five °C (225.6 K) and crystalline I above −47.5 °C.[7] At −47.3 °C it has monoclinic crystal structure with space grouping C2/c and lattice constants a = 20.3, b = xi.six, c = 19.9 (.10−1 nm), β = 111°.[viii]
With a specific gravity greater than 1, carbon tetrachloride will exist present every bit a dense nonaqueous phase liquid if sufficient quantities are spilled in the environment.
History and synthesis [edit]
Carbon tetrachloride was originally synthesized past the French chemist Henri Victor Regnault in 1839 by the reaction of chloroform with chlorine,[9] but now it is mainly produced from methane:
- CHiv + four Cl2 → CCl4 + 4 HCl
The production ofttimes utilizes by-products of other chlorination reactions, such as from the syntheses of dichloromethane and chloroform. Higher chlorocarbons are also subjected to "chlorinolysis":
- C2Cl6 + Cl2 → 2 CCl4
Prior to the 1950s, carbon tetrachloride was manufactured past the chlorination of carbon disulfide at 105 to 130 °C:[10]
- CSii + 3Cltwo → CClfour + StwoClii
The product of carbon tetrachloride has steeply declined since the 1980s due to environmental concerns and the decreased demand for CFCs, which were derived from carbon tetrachloride. In 1992, product in the U.S./Europe/Japan was estimated at 720,000 tonnes.[x]
Rubber [edit]
Carbon tetrachloride is i of the near potent hepatotoxins (toxic to the liver), so much and so that it is widely used in scientific research to evaluate hepatoprotective agents.[11] [12] Exposure to loftier concentrations of carbon tetrachloride (including vapor) tin affect the central nervous system and degenerate the liver[12] and kidneys,[13] and prolonged exposure may lead to coma or death.[fourteen] Chronic exposure to carbon tetrachloride can crusade liver[15] [16] and kidney damage and could consequence in cancer.[17] Encounter safety data sheets.[18]
The effects of carbon tetrachloride on human health and the environment have been assessed nether Achieve in 2012 in the context of the substance evaluation by French republic.[19]
In 2008, a study of common cleaning products constitute the presence of carbon tetrachloride in "very high concentrations" (up to 101 mg/mthree) as a result of manufacturers' mixing of surfactants or soap with sodium hypochlorite (bleach).[twenty]
Carbon tetrachloride is too both ozone-depleting[21] and a greenhouse gas.[22] However, since 1992[23] its atmospheric concentrations have been in decline for the reasons described above (run into atmospheric concentration graphs in the gallery). CCl4 has an atmospheric lifetime of 85 years.[24]
At loftier temperatures in air, it decomposes or burns to produce poisonous phosgene.
Toxicological studies [edit]
Carbon tetrachloride is a suspected human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.[25] The World Health Organisation reports carbon tetrachloride tin can induce hepatocellular carcinomas (hepatomas) in mice and rats. The doses inducing hepatic tumours are higher than those inducing cell toxicity.[26] The International Agency for Research on Cancer (IARC) classified this compound in Grouping 2B, "possibly carcinogenic to humans".[27]
Uses [edit]
In organic chemistry, carbon tetrachloride serves every bit a source of chlorine in the Appel reaction.
Carbon tetrachloride made from heavy chlorine-37 has been used in the detection of neutrinos.
One specialty use of carbon tetrachloride is in stamp collecting, to reveal watermarks on postage stamps without damaging them. A minor amount of the liquid is placed on the back of a stamp, sitting in a black glass or obsidian tray. The letters or design of the watermark can so be seen clearly.
Historical uses [edit]
Carbon tetrachloride was widely used every bit a dry out cleaning solvent, as a refrigerant, and in lava lamps.[28] In the last instance, carbon tetrachloride is a central ingredient that adds weight to the otherwise buoyant wax.
Solvent [edit]
It once was a popular solvent in organic chemistry, merely, because of its adverse health effects, it is rarely used today.[11] It is sometimes useful as a solvent for infrared spectroscopy, because there are no significant absorption bands to a higher place 1600 cm−1. Because carbon tetrachloride does not accept whatever hydrogen atoms, it was historically used in proton NMR spectroscopy. In addition to being toxic, its dissolving power is low.[29] Its use in NMR spectroscopy has been largely superseded past deuterated solvents. Apply of carbon tetrachloride in decision of oil has been replaced past diverse other solvents, such as tetrachloroethylene.[11] Because it has no C–H bonds, carbon tetrachloride does not easily undergo costless-radical reactions. It is a useful solvent for halogenations either by the elemental halogen or by a halogenation reagent such every bit N-bromosuccinimide (these conditions are known every bit Wohl–Ziegler bromination).
Burn down suppression [edit]
A brass Pyrene carbon tetrachloride fire extinguisher
A Scarlet Comet brand glass globe ("fire grenade") containing carbon tetrachloride
In 1910, the Pyrene Manufacturing Visitor of Delaware filed a patent to utilise carbon tetrachloride to extinguish fires.[xxx] The liquid was vaporized by the oestrus of combustion and extinguished flames, an early form of gaseous fire suppression. At the time it was believed the gas simply displaced oxygen in the area near the fire, but later inquiry found that the gas actually inhibits the chemical chain reaction of the combustion process.[ commendation needed ]
In 1911, Pyrene patented a small, portable extinguisher that used the chemical.[31] The extinguisher consisted of a brass canteen with an integrated hand-pump that was used to expel a jet of liquid toward the fire. As the container was unpressurized, it could hands exist refilled later use.[32] Carbon tetrachloride was suitable for liquid and electric fires and the extinguishers were often carried on aircraft or motor vehicles. However as early as 1920, there were reports of fatalities acquired by the chemic when used to fight a fire in a bars space.[33]
In the get-go half of the 20th century, another common fire extinguisher was a single-employ, sealed drinking glass globe known as a "fire grenade", filled with either carbon tetrachloride or salt water. The bulb could be thrown at the base of the flames to quench the fire. The carbon tetrachloride type could also be installed in a spring-loaded wall fixture with a solder-based restraint. When the solder melted by loftier heat, the spring would either interruption the globe or launch it out of the bracket, allowing the extinguishing amanuensis to be automatically dispersed into the burn down.[34]
A well-known brand of fire grenade was the "Reddish Comet", which was variously manufactured with other fire-fighting equipment in the Denver, Colorado surface area by the Red Comet Manufacturing Company from its founding in 1919 until manufacturing operations were closed in the early on 1980s.[35]
Refrigerants [edit]
Prior to the Montreal Protocol, large quantities of carbon tetrachloride were used to produce the cfc refrigerants R-xi (trichlorofluoromethane) and R-12 (dichlorodifluoromethane). Yet, these refrigerants play a role in ozone depletion and take been phased out. Carbon tetrachloride is even so used to industry less destructive refrigerants.
Fumigant [edit]
Carbon tetrachloride was widely used as a fumigant to kill insect pests in stored grain.[36] It was employed in a mixture known as 80/20, that was 80% carbon tetrachloride and twenty% Carbon disulfide.[37] The The states Environmental Protection Agency banned its use in 1985.[38]
Gallery [edit]
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CCliv measured by the Advanced Global Atmospheric Gases Experiment (AGAGE) in the lower atmosphere (troposphere) at stations effectually the globe. Abundances are given as pollution free monthly hateful mole fractions in parts-per-trillion.
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Hemispheric and Global mean concentrations of CCl4 (NOAA/ESRL).
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Time-series of atmospheric concentrations of CCliv (Walker et al., 2000).
References [edit]
- ^ Carbon tetrachloride
- ^ Touloukian, Y.Due south., Liley, P.E., and Saxena, S.C. Thermophysical properties of matter - the TPRC data series. Book iii. Thermal conductivity - nonmetallic liquids and gases. Data volume. 1970.
- ^ Reid, Robert C.; Prausnitz, John K.; Poling, Bruce E. (1987), The Properties of Gases and Liquids, McGraw-Hill Book Company, p. 442, ISBN0-07-051799-ane
- ^ "Carbon tetrachloride" (PDF). Cheméo . Retrieved 14 Jun 2022.
{{cite spider web}}: CS1 maint: url-status (link) - ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0107". National Institute for Occupational Safety and Wellness (NIOSH).
- ^ a b "Carbon tetrachloride". Immediately Unsafe to Life or Health Concentrations (IDLH). National Establish for Occupational Safety and Health (NIOSH).
- ^ "Carbon Tetrachloride". webbook.nist.gov. Archived from the original on 30 June 2017. Retrieved 28 April 2018.
- ^ F. Brezina, J. Mollin, R. Pastorek, Z. Sindelar. Chemicke tabulky anorganickych sloucenin (Chemic tables of inorganic compounds). SNTL, 1986.
- ^ Five. Regnault (1839) "Sur les chlorures de carbone CCl et CCl2" (On the chlorides of carbon CCl and CCltwo ), Annales de Chimie et de Physique, vol. 70, pages 104-107. Reprinted in German as: V. Regnault (1839). "Ueber die Chlorverbindungen des Kohlenstoffs, C2Cl2 und CCl2". Annalen der Pharmacie. 30 (3): 350–352. doi:ten.1002/jlac.18390300310.
- ^ a b Manfred Rossberg, Wilhelm Lendle, Gerhard Pfleiderer, Adolf Tögel, Eberhard-Ludwig Dreher, Ernst Langer, Heinz Jaerts, Peter Kleinschmidt, Heinz Strack, Richard Cook, Uwe Beck, Karl-August Lipper, Theodore R. Torkelson, Eckhard Löser, Klaus Chiliad. Beutel, "Chlorinated Hydrocarbons" in Ullmann'southward Encyclopedia of Industrial Chemical science, 2006 Wiley-VCH, Weinheim. doi:10.1002/14356007.a06_233.pub2
- ^ a b c Employ of Ozone Depleting Substances in Laboratories. TemaNord 516/2003. Archived Feb 27, 2008, at the Wayback Machine
- ^ a b Seifert Due west. F., Bosma A., Brouwer A. et al. (January 1994). "Vitamin A deficiency potentiates carbon tetrachloride-induced liver fibrosis in rats". Hepatology. 19 (1): 193–201. doi:10.1002/hep.1840190129. PMID 8276355. S2CID 205863459.
{{cite journal}}: CS1 maint: uses authors parameter (link) - ^ Liu K. 10., Kato Y., Yamazaki Yard., Higuchi O., Nakamura T., Sugiyama Y. (April 1993). "Decrease in the hepatic clearance of hepatocyte growth cistron in carbon tetrachloride-intoxicated rats". Hepatology. 17 (4): 651–60. doi:10.1002/hep.1840170420. PMID 8477970. S2CID 25794501.
{{cite journal}}: CS1 maint: uses authors parameter (link) - ^ Recknagel R. O.; Glende E. A.; Dolak J. A.; Waller R. L. (1989). "Mechanism of Carbon-tetrachloride Toxicity". Pharmacology & Therapeutics. 43 (43): 139–154. doi:x.1016/0163-7258(89)90050-eight. PMID 2675128.
- ^ Recknagel R. O. (June 1967). "Carbon tetrachloride hepatotoxicity". Pharmacol. Rev. 19 (ii): 145–208. PMID 4859860.
- ^ Masuda Y. (October 2006). "[Learning toxicology from carbon tetrachloride-induced hepatotoxicity]". Yakugaku Zasshi (in Japanese). 126 (x): 885–99. doi:ten.1248/yakushi.126.885. PMID 17016019.
- ^ Rood A. S., McGavran P. D., Aanenson J. W., Till J. Eastward. (August 2001). "Stochastic estimates of exposure and cancer gamble from carbon tetrachloride released to the air from the rocky flats found". Hazard Anal. 21 (4): 675–95. doi:x.1111/0272-4332.214143. PMID 11726020. S2CID 31797685.
{{cite periodical}}: CS1 maint: uses authors parameter (link) - ^ Material Safety Data Sheet, Carbon tetrachloride Archived 2010-09-13 at the Wayback Machine at Fisher Scientific.
- ^ "Substance evaluation - CoRAP - ECHA". echa.europa.eu. Archived from the original on twenty August 2016. Retrieved 28 April 2018.
- ^ Odabasi Yard. (2008). "Halogenated Volatile Organic Compounds from the Use of Chlorine-Bleach-Containing Household Products". Environmental Science & Technology. 42 (5): 1445–51. Bibcode:2008EnST...42.1445O. doi:ten.1021/es702355u. PMID 18441786.
- ^ Fraser P. (1997). "Chemistry of stratospheric ozone and ozone depletion". Australian Meteorological Mag. 46 (3): 185–193.
- ^ Evans Due west. F. J., Puckrin Eastward. (1996). "A measurement of the greenhouse radiation associated with carbon tetrachloride (CCl4)". Geophysical Research Letters. 23 (fourteen): 1769–72. Bibcode:1996GeoRL..23.1769E. doi:10.1029/96GL01258.
{{cite journal}}: CS1 maint: uses authors parameter (link) - ^ Walker, S. J.; Weiss R. F. & Salameh P. Yard. (2000). "Reconstructed histories of the almanac mean atmospheric mole fractions for the halocarbons Chlorofluorocarbon-11, Cfc-12, CFC-113 and carbon tetrachloride". Journal of Geophysical Enquiry. 105 (C6): 14285–96. Bibcode:2000JGR...10514285W. doi:10.1029/1999JC900273.
- ^ The Atlas of Climate change (2006) by Kirstin Dow and Thomas Due east. Downing ISBN 978-0-520-25558-6
- ^ "Study on Carcinogens, Fourteenth Edition - Carbon Tetrachloride" (PDF). ntp.niehs.nih.gov.
- ^ "Environmental Health Criteria 208: CARBON TETRACHLORIDE" (PDF). who.int.
- ^ "Public Wellness Statement for Carbon Tetrachloride (Tetracloruro de Carbono)". atsdr.cdc.gov.
- ^ Doherty R. Due east. (2000). "A History of the Production and Utilise of Carbon Tetrachloride, Tetrachloroethylene, Trichloroethylene and 1,1,1-Trichloroethane in the United states of america: Part 1—Historical Background; Carbon Tetrachloride and Tetrachloroethylene". Environmental Forensics. 1 (2): 69–81. doi:ten.1006/enfo.2000.0010. S2CID 97680726.
- ^ Due west. Reusch. "Introduction to Nuclear Magnetic Resonance Spectroscopy". Virtual Textbook of Organic Chemistry. Michigan State University. Archived from the original on August 31, 2006.
- ^ U.S. Patent 1,010,870, filed Apr v, 1910.
- ^ U.S. Patent ane,105,263, filed Jan 7, 1911.
- ^ "Pyrene Fire Extinguishers". Vintage Fire Extinguishers. Archived from the original on 25 March 2010. Retrieved 23 December 2009.
- ^ Fieldner, A. C.; Katz, South. H.; Kinney, S. P.; Longfellow, E. S. (1920-ten-01). "Poisonous gases from carbon tetrachloride fire extinguishers". Journal of the Franklin Institute. 190 (iv): 543–565. doi:10.1016/S0016-0032(20)91494-i. Retrieved 2022-02-03 .
- ^ Burke, Robert (2007-11-06). Fire Protection: Systems and Response. CRC Press. p. 209. ISBN978-0-203-48499-9.
- ^ "Red Comet Manufacturing Company". City of Littleton, CO. Archived from the original on 1 Oct 2016. Retrieved xxx September 2016.
- ^ "ACSH Explains: What's The Story On Carbon Tetrachloride?". American Council on Science and Wellness. 2018-08-09. Retrieved 2022-02-03 .
- ^ Peters, H. A.; Levine, R. L.; Matthews, C. G.; Sauter, Due south.; Chapman, Fifty. (1986). "Synergistic neurotoxicity of carbon tetrachloride/carbon disulfide (80/20 fumigants) and other pesticides in grain storage workers". Acta Pharmacologica et Toxicologica. 59: 535–546. doi:10.1111/j.1600-0773.1986.tb02820.x. PMID 3535379. Retrieved 2022-02-03 .
- ^ Darst, Guy (1985-02-12). "Manufacturers Accept Grain Fumigant Off Market in Face of EPA Testing". AP News . Retrieved 2022-02-03 .
External links [edit]
- International Chemic Safety Bill of fare 0024
- NIOSH Pocket Guide to Chemical Hazards. "#0107". National Institute for Occupational Safe and Health (NIOSH).
- "Carbon Tetrachloride (Grouping 2B)". International Agency for Research on Cancer (IARC) – Summaries & Evaluations. 71: 401. 1999.
- IARC Monograph: "Carbon Tetrachloride"
- Toxicological profile for carbon tetrachloride
- Ecology health criteria for carbon tetrachloride
- Carbon tetrachloride MSDS at Chancy Chemical Database
- Substance profile at ntp.niehs.nih.gov
- ChemSub Online: Carbon tetrachloride
Does Ccl4 Dissolve In Water,
Source: https://en.wikipedia.org/wiki/Carbon_tetrachloride
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