Grundstoffe der industriellen Darstellung von Isopropanol sind Aceton oder Propen. 2-Propanol (IUPAC Name); 2-hydroxypropane; 2-Propyl alcohol; Dimethyl Carbinol; IpA; i-Propyl alcohol; Isopropanol; iso-propanol; Iso-propyl alcohol; isopropylalcohol; propan-2-ol; Secondary Propyl Alcohol; sec-propanol. [31], Isopropyl alcohol is oxidized to form acetone by alcohol dehydrogenase in the liver,[31] and has a biological half-life in humans between 2.5 and 8.0 hours. B. beim Spleissen von LWL-Fasern.

isopropanol H2O. Zur Reinigung von Glasfasern z. It is a colorless, flammable chemical compound with a strong odor. Früher habe ich Isopropanol auch in Reinform gekauft und dann gemäß der obigen Anleitung verdünnt. It reacts with carbon disulfide and sodium hydroxide to give sodium isopropylxanthate, a herbicide and an ore flotation reagent. Zum Nass-Abspielen von Schallplatten: 50 % Isopropanol gemischt mit 50 % destilliertem Wasser. [31] Unlike methanol or ethylene glycol poisoning, the metabolites of isopropyl alcohol are considerably less toxic, and treatment is largely supportive. In the United Kingdom it costs the NHS about 3.90 pound per liter of 99% denatured alcohol. System Maintenance Alert: Due to planned maintenance of our internal systems, web functionality including order placement, price and availability checks and SDS display will not be available for Asia and several European countries from Saturday, November 7th at 2:30 CET until Sunday, November 8th at 7:00 AM CET.

Abstrahiert man das Wasserstoffatom von einem der beiden endständigen, primären Kohlenstoffatome des Propans, erhält man die n-Propylgruppe, hingegen ergibt die … It dissolves ethyl cellulose, polyvinyl butyral, many oils, alkaloids, gums and natural resins. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Isopropyl alcohol is often used in DNA extraction. [16] It may remain economical depending on the value of the products. The nucleophilicities and competitive reactivities of alkoxides and phenoxides", National Institute for Occupational Safety and Health, "Isopropyl Alcohol, UltimAR, Suitable for Liquid Chromatography, Extract/Conc, UV-Spectrophotometry", Ullmann's Encyclopedia of Industrial Chemistry, "Sodium Isopropyl Xanthate, SIPX, Xanthate", "Guide to Local Production: WHO-recommended Handrub Formulations", "Chemical safety: peroxide formation in 2-propanol", CDC – NIOSH Pocket Guide to Chemical Hazards - Isopropyl alcohol, Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium bromide), 2-Ethoxycarbonyl-1-methylvinyl cyclohexyl methylphosphonate, https://en.wikipedia.org/w/index.php?title=Isopropyl_alcohol&oldid=983665101, GABAA receptor positive allosteric modulators, Short description is different from Wikidata, Pages using collapsible list with both background and text-align in titlestyle, Articles with unsourced statements from July 2015, Articles containing unverified chemical infoboxes, Articles with unsourced statements from April 2020, Creative Commons Attribution-ShareAlike License, This page was last edited on 15 October 2020, at 14:53. [16] Isopropyl alcohol can also be used similarly to ether as a solvent[24] or as an anesthetic by inhaling the fumes or orally. Once soluble, water does not pose the same risk as insoluble water, as it no longer accumulates in the supply lines and freezes but is consumed with the fuel itself. Damit Sie alle Funktionen auf Chemie.DE nutzen können, aktivieren Sie bitte JavaScript. Um alle Funktionen dieser Seite zu nutzen, aktivieren Sie bitte die Cookies in Ihrem Browser. Erfahren Sie, wie LUMITOS Sie beim Online-Marketing unterstützt. 2-Propanol kann, wie andere sekundäre Alkohole auch[2], mit Luftsauerstoff explosionsfähige Peroxide bilden.

Isopropyl alcohol is often sold in aerosol cans as a windshield or door lock deicer. Isopropyl alcohol may be converted to acetone, but the cumene process is more significant. Water–isopropyl alcohol mixtures have depressed melting points.

[26][29][30] Wearing protective gloves is recommended. Isopropyl alcohol is also known as 2-propanol, sec-propyl alcohol, IPA, or isopropanol. Water is required to open up membrane pores of bacteria, which acts as a gateway for isopropyl alcohol.

[22] Isopropyl alcohol is used as a water-drying aid for the prevention of otitis externa, better known as swimmer's ear.[23]. Ist Propen der Ausgangsstoff, erfolgt eine saure Hydratisierung. Its major use at the time was not rubbing alcohol but for oxidation to acetone, whose first major use was in World War I for the preparation of cordite, a smokeless, low explosive propellant. Wer Isopropanol nicht erst selbst verdünnen möchte, der erhält im Handel auch fertige Isopropanol-Lösungen mit einer Konzentration von 70%. This process can use low-quality propene, and is predominant in the USA. Mixtures of isopropyl alcohol and water are also commonly used in homemade windshield washer fluid. It is primarily produced by combining water and propene in a hydration reaction or by hydrogenating acetone. Although isopropyl alcohol can be used for anesthesia, its many negative attributes or drawbacks prohibit this use. Isopropanol ist mit Wasser in jedem Verhältnis homogen mischbar und bildet ein konstant siedendes (azeotropes) Gemisch bei 80,4 °C und 12,1 % Wasseranteil.

Early uses included using the solvent as general anesthetic for small mammals[25] and rodents by scientists and some veterinarians. Isopropanol schmilzt bei -88 °C, der Siedepunkt liegt in einem Bereich von etwa 81 bis 82 °C. It also evaporates quickly, leaves nearly zero oil traces, compared to ethanol, and is relatively non-toxic, compared to alternative solvents. More... Molecular Weight: 78.11 g/mol. This can be achieved using oxidizing agents such as chromic acid, or by dehydrogenation of isopropyl alcohol over a heated copper catalyst: Isopropyl alcohol is often used as both solvent and hydride source in the Meerwein-Ponndorf-Verley reduction and other transfer hydrogenation reactions. Thus, it is used widely as a solvent and as a cleaning fluid, especially for dissolving oils. The reaction with aluminium (initiated by a trace of mercury) is used to prepare the catalyst aluminium isopropoxide. A known issue is the formation of MIBK and other self-condensation products. In rare cases, respiratory failure leading to death in animals was observed. 1 Structures Expand this section. Isopropanol ist eine schnell verdunstende, farblose, brennbare Flüssigkeit, die einen leicht süßlich-angenehmen, bei stärkerem Einatmen jedoch stechenden Geruch besitzt – dieser ist charakteristisch und erinnert an Krankenhäuser und Arztpraxen, da Isopropanol Bestandteil vieler Desinfektionsmittel ist. However, it was soon discontinued, as many complications arose, including respiratory irritation, internal bleeding, and visual and hearing problems. © 1997-2020 LUMITOS AG, All rights reserved, https://www.chemie.de/lexikon/2-Propanol.html. It is a structural isomer of 1-propanol and ethyl methyl ether. 3 Herstellung. Der Kontakt verursacht Reizungen der Augen und der Schleimhäute. [10], Isopropyl alcohol forms an azeotrope with water, which gives a boiling point of 80.37 °C (176.67 °F) and a composition of 87.7 wt% (91 vol%) isopropyl alcohol. [8] As an isopropyl group linked to a hydroxyl group, it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms. ; clear, colourless, flammable liquid with a characteristic odour, Solubility: Water, 1e+006 mg/L (25 deg C). In that year, 5400 metric tonnes were used for household purposes and in personal care products. Die Dämpfe wirken betäubend. Watch the recordings here on Youtube! It should be kept away from heat and open flame. [31] Poisoning can occur from ingestion, inhalation, or skin absorption. 2-Propanol Strukturformel Allgemeines Name 2-Propanol Andere Namen Propan-2-ol (IUPAC) Propanol-2 Isopropanol Isopropylalkohol (IPA) sekundärer Propylalkohol [16], Isopropyl alcohol dissolves a wide range of non-polar compounds. Isopropyl alcohol has a maximal absorbance at 205 nm in an ultraviolet–visible spectrum.[12][13]. Erfahren Sie mehr über das Unternehmen LUMITOS und unser Team. Isopropyl alcohol does not cause an anion gap acidosis but it produces an osmolal gap between the calculated and measured osmolalities of serum, as do the other alcohols. Isopropyl alcohol can be oxidized to acetone, which is the corresponding ketone. Taken by mouth or injected into a vein it is used to treat methanol or ethylene glycol toxicity when fomepizole is not available. In Tierversuchen wurden keine Hinweise auf sensibilisierende oder mutagene Eigenschaften gefunden. Isopropyl alcohol is a major ingredient in "gas dryer" fuel additives. Beim Umgang für ausreichende Lüftung sorgen. Isopropyl alcohol becomes increasingly viscous with decreasing temperature and freezes at −89 °C (−128 °F). Es ist deshalb ratsam IPA vor dem Abdestillieren auf Peroxide zu prüfen. farblose Flüssigkeit mit alkoholartigem Geruch, Zusatz in Offsetdruckmaschinen mit Alkoholfeuchtwerken, um die Oberflächenspannung des Feuchtmittels herabzusetzen (sogenannter 'Wischwasserzusatz'), Herstellung von Desinfektionsmitteln (70 %iger IPA in Wasser besitzt beispielsweise eine höhere Wirkung als entsprechend verdünntes Ethanol), Lösungs- und Verdünnungsmittel in kosmetischen und pharmazeutischen Zubereitungen, Reinigungsmittel in Industrie und Haushalt/Fettlöser. Legal. Isopropyl alcohol may be converted to 2-bromopropane using phosphorus tribromide, or dehydrated to propene by heating with sulfuric acid. Zur Reinigung von CCD-Sensoren von digitalen Spiegelreflexkameras (Alternative: Zur Reinigung des Tonabnehmers/ der Abtastnadel eines Plattenspielers. [31] Overdoses may cause a fruity odor on the breath as a result of its metabolism to acetone. Isopropyl alcohol (IUPAC name propan-2-ol), also called isopropanol or dimethyl carbinol, is a compound with the chemical formula C 3 H 8 O or C 3 H 7 OH or CH 3 CHOHCH 3 (sometimes represented as i-PrOH). Isopropanol ist hervorragend in Wasser, Chloroform, Benzol und Aceton lösbar. 634591-14-3. isopropanol water. [21] Isopropyl alcohol reacts with titanium tetrachloride and aluminium metal to give titanium and aluminium isopropoxides, respectively, the former a catalyst, and the latter a chemical reagent. A lab worker adds it to a DNA solution to precipitate the DNA, which then forms a pellet after centrifugation. pp 2143–2184, "A new method for the determination of the relative acidities of alcohols in alcoholic solutions. [16][17] Types of alcohol used include ethanol, denatured ethanol, 1-propanol, and isopropyl alcohol. [26] Distillation of isopropyl alcohol over magnesium has been reported to form peroxides, which may explode upon concentration. Isopropyl alcohol and its metabolite, acetone, act as central nervous system (CNS) depressants. Kategorien: Feuergefährlicher Stoff | Reizender Stoff | Alkohol. This is an efficient process and easy, In 1990, 45,000 metric tonnes of isopropyl alcohol were used in the United States, mostly as a solvent for coatings or for industrial processes. Isopropyl alcohol is also used to remove brake fluid traces from hydraulic braking systems, so that the brake fluid (usually DOT 3, DOT 4, or mineral oil) does not contaminate the brake pads and cause poor braking. [2] There are two routes for the hydration process and both processes require that the isopropyl alcohol be separated from water and other by-products by distillation.



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