2-Ethylhexan-1-ol Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH.
CHEMISCHE GEFAHREN
Reagiert sehr heftig mit starken Oxidationsmitteln.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK: 20 ppm 110 mg/m? Spitzenbegrenzung: überschreitungsfaktor I(1); Schwangerschaft: Gruppe C; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation der D?mpfe und durch Verschlucken.
INHALATIONSGEFAHREN
Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitssch?dliche Konzentration in der Luft beim Verdampfen bei 20°C erreicht wird.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen, die Haut und die Atemwege. M?glich sind Auswirkungen auf das Zentralnervensystem.
LECKAGE
Ausgelaufene Flüssigkeit m?glichst in abdichtbaren Beh?ltern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen. NICHT in die Umwelt gelangen lassen. Pers?nliche Schutzausrüstung: Atemschutzfilter für organische Gase und D?mpfe.
R-S?tze Betriebsanweisung:
R37/38:Reizt die Atmungsorgane und die Haut.
R41:Gefahr ernster Augensch?den.
R36:Reizt die Augen.
R21:Gesundheitssch?dlich bei Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/39:Bei der Arbeit geeignete Schutzkleidung und Schutzbrille/Gesichtsschutz tragen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Beschreibung
2-Ethylhexanol, also known as 2-Ethylhexan-1-ol, abbreviated as 2-EH, is a branched eight-carbon alcohol. In industry, 2-EH is mainly used to make ester plasticizers, which can be used to produce soft polyvinyl chloride. 2-EH can also be used to make a chemical used in the production of coating materials, adhesives, printing inks and impregnation agents. 2-EH occurs naturally in food and is used as a volatile flavoring agent and is indirectly approved as a food additive by the FDA. In addition, 2-EH is also used as an inert pesticide ingredient in pesticide formulations for cultivated crops, raw agricultural products (RAG) or animals.
Chemische Eigenschaften
2-Ethylhexanol is a clear, colorless to pale yellow oily liquid. It has a mild, oily, sweet, slightly floral odor reminiscent of rose and sweet, fatty-floral taste with a fruity note. Soluble in 720 times water, miscible in most organic solvents.
Occurrence
Reported found in papaya, peach, pear, blackberry, strawberry, cabbage, Parmesan and mozzarella cheese,
butter, roasted chicken, cognac, sherry, grape wines, tea, avocado, kiwifruit, crab and clam.
Verwenden
2-Ethylhexanol is the most important C8 alcohol and is mainly used as the alcohol component for the manufacture of ester plasticizers for soft poly(vinyl chloride) (PVC). Other minor uses include the manufacturing of 2-ethylhexyl acrylate, as a dispersing agent and wetting agent, as a solvent for gums and resins, as a cosolvent for nitrocellulose, and in ceramics, paper coatings, rubber latex, textiles, and fragrances.
synthetische
2-ethylhexanol synthesis: Condensation of acetaldehyde into butanol aldehyde, dehydration to obtain crotonaldehyde, hydrogenation to n-butyraldehyde, condensation dehydration to obtain 2-ethyl-2-hexenal, and then hydrogenation to obtain 2-ethylhexanol.
Application
2-Ethyl-1-hexanol is suitable for use in a study to compare its susceptibilities of dynamic heat capacity and dielectric polarization under isothermal conditions. It may be used to study lipase-catalyzed transesterification (alcoholysis) of rapeseed oil and 2-ethyl-1-hexanol in the absence of solvent. 2-Ethyl-1-hexanol may be used in broadband dielectric spectroscopy studies of the polyalcohols-glycerol, xylitol and sorbitol. It may be used in the preparation of porous beads.
Definition
ChEBI: 2-Ethylhexanol is a primary alcohol that is hexan-1-ol substituted by an ethyl group at position 2. It has a role as a volatile oil component and a plant metabolite.
Allgemeine Beschreibung
2-ethyl hexanol appears as a dark brown liquid with an aromatic odor. Insoluble in water and less dense than water. Flash point between 140 - 175°F. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption.
Air & Water Reaktionen
Insoluble in water.
Reaktivit?t anzeigen
2-Ethylhexanol is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. 2-Ethylhexanol is incompatible with strong oxidizing agents and strong acids.
Health Hazard
Anesthesia, nausea, headache, dizziness; mildly irritating to skin and eyes.
Brandgefahr
2-Ethylhexanol is combustible.
Sicherheitsprofil
Moderately toxic by
ingestion, skin contact, intraperitoneal,
subcutaneous, and parented routes. An
experimental teratogen. Other experimental
reproductive effects. A severe eye and
moderate skin irritant. Mutation data
reported. A dangerous fire hazard when ex posed to heat or flame; can react vigorously
with oxidzing materials. To fight fire, use
foam, CO2, dry chemical. When heated to
decomposition it emits acrid smoke and
fumes. See also ALCOHOLS.
Carcinogenicity
Male and female F344 rats
were dosed by oral gavage with 0, 50, 150, or 500 mg/kg
2-ethylhexanol (0.005% in aqueous Cremophor EL, a polyoxyl
35 castor oil), 5 days/week for 2 years. There were no
differences of biological importance between the vehicle
control and a water control group that was included in the
study. There was no evidence of treatment-related neoplastic
lesions in any of the exposed groups.
2-Ethylhexan-1-ol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
