Furfurylalkohol Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH. VERF?RBT SICH ROT ODER BRAUN BEI KONTAKT MIT LICHT UND LUFT.
CHEMISCHE GEFAHREN
Polymerisiert unter Einfluss von S?uren. Reagiert sehr heftig mit starken Oxidationsmitteln. Feuer- und Explosionsgefahr.
ARBEITSPLATZGRENZWERTE
TLV: 10 ppm (als TWA) 15 ppm (als STEL); Hautresorption (ACGIH 2005).
MAK: 10 ppm, 41 mg/m? Spitzenbegrenzung: überschreitungsfaktor I(1); Hautresorption; (DFG 2006).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation, über die Haut und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C tritt langsam eine gesundheitssch?dliche Kontamination der Luft ein.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Tr?nenreizend. Die Substanz reizt die Augen, die Haut und die Atemwege. Exposition weit oberhalb der Arbeitsplatzgrenzwerte kann Bewusstseinstrübung verursachen.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Die Flüssigkeit entfettet die Haut. M?glich sind Auswirkungen auf das Zentralnervensystem.
LECKAGE
Ausgelaufene Flüssigkeit m?glichst in abdichtbaren Beh?ltern sammeln. Reste mit viel Wasser wegspülen. Pers?nliche Schutzausrüstung: Atemschutzfilter für organische Gase und D?mpfe.
R-S?tze Betriebsanweisung:
R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Aussehen Eigenschaften
C5H6O2; 2-Furylmethanol, 2-Furylcarbinol. Farblose Flüssigkeit mit schwach stechendem Geruch.
Gefahren für Mensch und Umwelt
Gesundheitsschädlich beim Einatmen, Verschlucken und Berührung mit der Haut.
Wird über die Haut resorbiert. Inhalation kann zu Lungenödemen führen.
Nicht mit starken Säuren in Berührung bringen.
LD
50 (oral, Ratte): 88.3 mg/kg
Schutzma?nahmen und Verhaltensregeln
Geeignete Schutzhandschuhe als kurzzeitiger Spritzschutz.
Verhalten im Gefahrfall
Mit flüssigkeitsbindendem Material, z.B. Rench Rapid aufnehmen. Der Entsorgung zuführen. Nachreinigen.
Kohlendioxid, Wasser, Pulver.
Brennbar. Mit Luft Bildung explosionsfähiger Gemische möglich.
Erste Hilfe
Nach Hautkontakt: Mit reichlich Wasser abwaschen.
Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
Nach Einatmen: Frischluft.
Nach Verschlucken: Paraffinöl trinken lassen. Erbrechen vermeiden (Aspirationsgefahr!). Sofort Arzt hinzuziehen.
Nach Kleidungskontakt: Kontaminierte Kleidung sofort entfernen.
Ersthelfer: siehe gesonderten Anschlag
Sachgerechte Entsorgung
Als halogenfreie, organische Lösemittelabfälle.
Chemische Eigenschaften
Furfuryl alcohol has a very mild, warm, oily, “burnt” odor and a cooked sugar taste.
Physikalische Eigenschaften
Clear, colorless to pale yellow liquid with an irritating odor. Darkens to yellowish-brown on
exposure to air. A detection odor threshold concentration of 32 mg/m
3 (8.0 ppm
v) was determined
by Jacobson et al. (1958).
Occurrence
Reported found in roasted almonds, cooked apple, apple juice, roasted barley, beans, beef fat, canned beef stew, beer, brandy, white bread, cocoa, cocoa bean, roasted coffee, roasted flberts, honey, heated skim milk, dried mushrooms, roasted onion, yellow passion fruit, roasted peanuts, pineapple, popcorn, potato chips, roasted sesame seeds, cheeses, milk, meats, grape wines, cognac, whiskies, soybean products, coconut, corn oil, shrimps, clams and other sources
Verwenden
Furfuryl Alcohol has been obtained by yeast reduction of furfural. Furfuryl Alcohol is used as solvent and in the manufacturing of wetting agents, resins.
synthetische
Usually prepared from furfural that is obtained by the processing of corncobs; oil obtained by steam distillation of roasted coffee bean meal consists of 50% furfuryl alcohol; prepared industrially by the catalytic reduction of furfural using nickel and Cu-CrO catalysts.
Definition
ChEBI: A member of the class of furans bearing a hydroxymethyl substituent at the 2-position.
Allgemeine Beschreibung
A clear colorless liquid. Flash point 167°F. Boiling point 171°F. Denser than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion and skin contact and moderately toxic by inhalation.
Air & Water Reaktionen
Slightly soluble in water.
Hazard
May react explosively with mineral acids
and some organic acids. Toxic by inhalation and
skin absorption. Approved for food products. Toxic
by skin absorption.
Health Hazard
Inhalation causes headache, nausea, and irritation of nose and throat. Vapor irritates eyes; liquid causes inflammation and corneal opacity. Contact of skin with liquid causes dryness and irritation. Ingestion causes headache, nausea, and irritation of mouth and stomach.
Brandgefahr
Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Chemische Reaktivit?t
Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: The product darkens and forms water insoluble material on exposure to air or acids. This reaction is accelerated at elevated temperatures; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Sicherheitsprofil
Poison by ingestion,
skin contact, and subcutaneous routes.Moderately toxic by inhalation and
intraperitoneal routes. Mutation data
reported. An eye irritant. Flammable when
exposed to heat or flame; can react with
oxidtzing materials. Moderate explosion hazard when exposed to heat or flame.
Reacts violently with acids (e.g., formic acid,
cyanoacetic acid + heat). Ignites on contact
with 85% hydrogen peroxide. To fight fire,
use alcohol foam, CO2, dry chemical. When
heated to decomposition it emits acrid
smoke and fumes.
m?gliche Exposition
Used as a starting monomer in the
production of furan resins and used to produce tetrahydro furfural alcohol (THFA).
Carcinogenicity
The NTP conducted a 2-year
inhalation study on furfuryl alcohol. F344 rats and
B6C3F1 mice were exposed to 0, 2, 8, or 32 ppm furfuryl
alcohol for 6 h/day, 5 days/week. All rats exposed to 32 ppm
died by week 99; survival of all other animals was similar to
control animals. There were increased incidences of nasal
tumors in the male rats and increased incidences of kidney
tubule tumors in male mice. Increased incidences of nonneoplastic
lesions of the nose and increased severities of
nephropathy were observed in male and female rats and male
mice. Nonneoplastic lesions of nose and corneal degeneration
occurred in female mice.
Environmental Fate
Biological. In activated sludge inoculum, following a 20-d adaptation period, 97.3% COD
removal was achieved. The average rate of biodegradation was 41.0 mg COD/g?h (Pitter, 1976).
Chemical/Physical. Easily resinified by acids (Windholz et al., 1983). Furfuryl alcohol will not
hydrolyze because it has no hydrolyzable functional group.
In barrel-aged red, white, and model wines, naturally occurring furfuryl alcohol decreased in
concentration with time. In red wine, furfuryl ethyl ether was identified as a degradation product
after 55 wk of storage. The average percentage decrease of furfuryl alcohol was 73% (Spillman et
al., 1998).
Versand/Shipping
UN2874 Furfuryl alcohol, Hazard Class: 6.1;
Labels: 6.1-Poisonous materials.
l?uterung methode
Distil it under reduced pressure to remove tarry material, shake with aqueous NaHCO3, dry it with Na2SO4 and fractionally distil it under reduced pressure from Na2CO3. It can be further dried by shaking with Linde 5A molecular sieves. [Beilstein 17/3 V 338.]
Inkompatibilit?ten
Incompatible with oxidizers (chlorates,
nitrates, peroxides, permanganates, perchlorates, chlorine,
bromine, fluorine, etc.); contact may cause fires or explo sions. Keep away from alkaline materials, strong bases,
strong acids, oxoacids, epoxides. Contact with acids can
cause polymerization. Strong reaction with oxidizers.
Incompatible with alkaline earth and alkali metals; strong
caustics; aliphatic amines; isocyanates, acetaldehyde, benzoyl
peroxide; chromic acid, chromium trioxide; cyanoacetic acid;
dialkylzincs, dichlorine oxide; ethylene oxide; hydrogen per oxide; isopropyl chlorocarbonate; lithium tetrahydroalumi nate; nitric acid; nitrogen dioxide; pentafluoroguanidine,
phosphorus pentasulfide; tangerine oil; triethylaluminum, trii sobutylaluminum. Attacks some plastics, coatings and rubber.
Waste disposal
Incineration in admixture
with a more flammable solvent.
Furfurylalkohol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
